 Please pardon our progress while we refine the look and functionality of our new ALEX site! You can still access the old ALEX site at alex.asc.edu. If you would like to share feedback or have a question for the ALEX Team, you can use the contact form here, or email us directly at administrator@alex.state.al.us.

# Search ALEX...

Mathematics

## Can Fractions Be Equal?

### Overview

This tool allows the participant to visually create two equivalent fractions based on the fraction provided. This can be used as an introduction since it allows you to determine your own fraction and construct models. You can also use it as a closing activity to check students understanding by asking them to construct a visual model.

4

### Learning Resource Type

Learning Activity

### Activity Learning Objectives

Students will create equivalent fractions through a visual model.

### Activity Assessment Strategies

To determine if students can construct equivalent fractions they could take a screenshot of their work and email it to the teacher as an exit slip. The teacher can also observe the models students make.

## Using Symmetry to Create Art

### Overview

Symmetry Artist is an interactive painting activity that allows students to draw on an axis of reflective symmetry or rotational symmetry. Students can customize line style and color. The symmetrical art is printer friendly.

4

### Learning Resource Type

Learning Activity

### Activity Learning Objectives

Students will recognize lines of symmetry in two-dimensional figures.

Students will draw lines of symmetry.

### Activity Assessment Strategies

Assess understanding of symmetry using the handout and student's creations on the digital tool.

## Interactive Fraction Comparisons

### Overview

This interactive game allows students to practice finding equivalent fractions, and adding fractions

3

### Learning Resource Type

Learning Activity

### Activity Learning Objectives

Students will explain and compare equivalent fractions.

Students will add fractions with unlike denominators.

### Activity Assessment Strategies

The teacher will observe students' use of the interactive game. Students who use fewer cards during the game have mastered the standards.

## Taking Turns to Counting On

### Overview

In this learning activity, the students will work together taking turns to add small quantities encouraging counting on rather than recounting the set from one each time. It engages the students by using the number cubes to produce numbers and collect counters.  It will help students to count and organize numbers more efficiently.

This activity results from the ALEX Resource Development Summit.

1

### Activity Learning Objectives

• The student will count and keep track of amounts up to 60.
• The student will count on from an unknown quantity.
• The student will organize objects to count them more efficiently.
• The student will relate counting to addition by counting on.

## Nets: Message in a Box

### Overview

In cooperative/collaborative groups, students will compare and contrast a two-dimensional pattern and a three-dimensional shape. Students will use a net to label and then construct a rectangular prism. Students will find the surface area of a rectangular prism. As a final performance task, students will create a message box.

6

Lesson Plan

### Primary Learning Objectives

Key Concept:  Two-dimensional shapes can be assembled to form three-dimensional figures.

Message Box: Nets
Student Outcome: Students will create nets for a rectangular prism. Students will find the volume and the surface area of the rectangular prism.

### Activity Learning Objectives

The student(s) will able to use the order of operations to solve a number sentence that involves more than one operation.

### Activity Assessment Strategies

The teacher can use observation to determine student progress on guided practice and performance on the test that is provided.

### Activity Learning Objectives

*Students can participate in a conversation about their opinions on films and their interests using a variety of phrases and simple sentences.

*Students can use the target language to describe movies in the target culture and identify those which interest them personally.

### Activity Assessment Strategies

*Informally assess whether the students are able to carry on a conversation with their partner about film preferences, using complete sentences with details, by moving around the room and listening in to make sure each pair is speaking in the target language about their opinions of the movies.

*Informally assess if the students are able to complete the conversation about their opinions on the movies with their partners by checking their graphic organizers for completion.

### Activity Learning Objectives

• Students will convert among different units of measurement within the customary system to solve real-world problems.
• Students will convert among different units of measurement within the metric system to solve real-world problems.
• Students will determine the appropriate unit of measurement for a given object.

### Activity Assessment Strategies

Students should be able to use the skills obtained in the lesson and practiced in the interactives to solve real-world problems. Assess student mastery with a combination of skills in isolation, and then through application such as this activity. https://docs.google.com/document/d/1h5DSnI9dKEBKjTxQWj0asbELda3XPhXXhmd0L8HM6uo/edit?usp=sharing

### National/Other Standards

Standards for Mathematical Practice:
4. Model with mathematics
5. Use appropriate tools strategically
6. Attend to precision
7. Look for make use of structure

National Council of Teachers of Mathematics Standards for Grades 6-8:

Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships of similar objects; create and critique inductive and deductive arguments concerning geometric ideas and relationships, such as congruence, similarity, and the Pythagorean relationship; precisely describe, classify, and understand relationships among types of two-and three-dimensional objects using their defining properties; understand relationships among the angles, side lengths, perimeters, area, and volumes.

## Wonder Number Line

### Overview

This lesson allows students to become familiar with a number line. Students can explore a number line and develop knowledge of numerical concepts. While it covers a 6th grade standard, this lesson can be used as part of a 7th or 8th grade lesson on integers.

This is a College- and Career-Ready Standards showcase lesson plan.

6

Lesson Plan

### Primary Learning Objectives

I CAN create a number line with negative and positive numbers.

I CAN identify opposites on a number line.

I CAN define absolute value as the distance of a number from 0.

### National/Other Standards

Math Practice Standards:

1. Make sense of problems and persevere in solving them.

2. Reason abstractly and quantitatively.

3. Construct viable arguments and critique the reasoning of others.

4. Model with mathematics.

5. Use appropriate tools strategically.

6. Attend to precision.

7. Look for and make use of structure.

8. Look for and express regularity in repeated reasoning.

## Rain Drops

### Overview

In this lesson, students will examine the amount of annual and seasonal rainfall in four cities to compare decimals to the hundredths place. Students will add and round digits to the thousandths place. Students will utilize technology by navigating to a specific United States climate website to get relatively current and accurate data.

This unit was created as part of the ALEX Interdisciplinary Resource Development Summit.

5

Lesson Plan

### Primary Learning Objectives

Math Primary Learning Objective: Students will be able to compare decimals and order them from least to greatest value. Students will round decimals to any place.

Science Primary Learning Objective: Students will be able to predict areas of higher rainfall based on location on the continent.

Technology Primary Learning Objective: Students will be able to use accurate precipitation data to compare global precipitation averages.

Students will recognize that areas in certain parts of the country are more likely to receive rain than other areas. They will use this understanding of the ocean's influence on rainfall to predict areas of higher or lower rainfall and use the precipitation website to check their predictions.

## Building Functions - Reverse to Inverse

### Overview

This lesson will provide an introduction to finding the inverse of a function or a relation. Through a combination of teacher-led instruction and collaboration, students will discover a method for finding the inverse of a function or relation. The use of an online graphing calculator will aid students with their discovery.

This lesson results from the ALEX Resource Gap Project.

9, 10, 11, 12

Lesson Plan

### Primary Learning Objectives

Students will identify the order of operations in an algebraic statement and will be able to reverse (or undo) the operations.

Students will be able to find domain and range values of a function and will recognize that the domain and range values of the inverse function will be in reverse order (range becomes domain and vice versa).

Students will be able to write the inverse of a function after being given a function.

## Triangle Area: No Height?--Use the Sine

### Overview

This lesson will lead students through a review of the proof of the Law of Sines. This proof will remind them that they can use the right triangle relationship for Sine to find the height of a triangle. They will then apply this knowledge to find the area of a triangle when given two sides and an included angle. Finally, they will be asked to find the area when no values are given. This result should produce the Area Formula for a triangle given two sides and the included angle.

This lesson results from the ALEX Resource Gap Project.

9, 10, 11, 12

Lesson Plan

### Primary Learning Objectives

Students will prove the Law of Sines.

Students will find the area of a triangle given different pieces of information (base and height or two sides and the included angle).

## Unit Circle - Special Angles - Just Know One

### Overview

This lesson will demonstrate that in order to find the coordinates of the special angles on the unit circle, students will need a knowledge of the first quadrant angles only. Students will use special right triangle relationships for 30° - 60° -90° or 45° - 45° - 90° triangles to find the first quadrant coordinate values. These values will then be reflected across the x- and y-axis to locate the coordinates in the remaining quadrants. Students will also convert the angle measurements from units in degrees to units in radians.  They will become familiar with finding angles in the quadrants by using reference angles (π-x, π+x. 2π-x).

This lesson results from the ALEX Resource Gap Project.

9, 10, 11, 12

Lesson Plan

### Primary Learning Objectives

Students will identify the relationship of the sides of a 30° - 60° -90° and a 45° - 45° - 90° triangle.

Students will find the coordinates of the angles on the unit circle in quadrant I by using special right triangle relationships.

Students will convert angles in degree measurement to radian measurement.

Students will apply their knowledge of reflecting objects in the coordinate plane across the x-axis and the y-axis to find the coordinates of special angles in quadrants II, III and IV.

## Add, Subtract, and Multiply Matrices

### Overview

The lesson will introduce the concept of a matrix. The matrix is labeled by its rows and columns. This lesson will teach the concept of adding, subtracting, scalar multiplication, and multiplication of matrices. This lesson will be a prerequisite for solving systems of equations with matrices.

This lesson results from the ALEX Resource Gap Project.

9, 10, 11, 12

Lesson Plan

### Primary Learning Objectives

The student will be able to multiply a scalar by a matrix.

The student will be able to add matrices.

The student will be able to subtract matrices.

The student will be able to multiply matrices.

## Solving Formulas for the Given Variable

### Overview

This lesson will use the process of inverse operations to solve formulas for a given variable. Some formulas will not be recognized by the student. The actual formula is not important, but the variables are.

This lesson results from the ALEX Resource Gap Project.

9, 10, 11, 12

Lesson Plan

### Primary Learning Objectives

The student will be able to rearrange formulas to highlight a specified quantity.

The student will be able to solve multi-step equations.

## Can You Solve the Mystery of the Variable?

### Overview

This lesson will help students master Algebra I standard 15: Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations [A-CED4]. The lesson will make the connection between isolating a guilty person in a “who-dun-it” with isolating a given variable in an equation. In addition, this lesson will involve students creating a list of procedures to use when solving for a given variable. At this time it is not necessary for students to know the formal names for the properties. It is important for students to understand the concepts and take part in creating a set of procedures for isolating a variable and solving equations.

This lesson results from the ALEX Resource Gap Project.

9, 10, 11, 12

Lesson Plan

### Primary Learning Objectives

The student will be able to solve an equation for a given variable in an equation.

The student will be able to create a set of procedures to serve as a reference when solving an equation for a given variable as demonstrated by creating three procedures to use when solving an equation.

### Overview

This lesson is an introduction to Binomial Expansion and the Binomial Theorem. Students begin by expanding binomials using multiplication. They will examine the expansions looking for patterns. These patterns will be used to develop the Binomial Theorem. Both Pascal's Triangle and Combinations will be used to complete the Binomial Expansion.

This lesson results from the ALEX Resource Gap Project.

9, 10, 11, 12

Lesson Plan

### Primary Learning Objectives

Students will expand binomials using multiplication.

Students will examine and develop patterns for binomial expansion.

Students will use Pascal's Triangle to find the coefficients in a binomial expansion.

Students will use combinations in conjunction with the Binomial Theorem to expand a binomial.

## Logarithms: Undo the Exponential

### Overview

In this lesson, students are asked to provide a written description of both an exponential function and its inverse. They are then introduced to the logarithmic function and will practice writing exponential functions as logarithms and logarithms as exponential functions. Students will evaluate logarithmic expressions and will solve logarithmic equations.

This lesson results from the ALEX Gap Resource Project.

9, 10, 11, 12

Lesson Plan

### Primary Learning Objectives

Students will recognize that a logarithm is the inverse of an exponential function.

Students will be able to write an exponential function as a logarithmic function and vice versa.

Students will be able to evaluate exponential expressions.

Students will be able to solve logarithmic equations.

## KutaSoftware: Algebra 1 - Radical Equations Easy Part 1

### Overview

This YouTube video will help explain how to teach radical equations using a worksheet from Kuta Software. Kuta Software is free software for math teachers that creates worksheets in a matter of minutes. There are a series of three videos available to fully teach this concept. The videos are labeled Radical Equations Easy Part 1, Radical Equations Easy Part 2, and Radical Equations Easy Part 3. This video can be played to introduce a lesson on radical equations. This video is 8 minutes and 38 seconds in length.

9, 10, 11, 12

Audio/Video

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

Kuta Software provides users with simple yet effective math worksheets for free! This site also features test and worksheet generators and various free trials for math instructors.

CUSTOM

yvetteakridge

## KutaSoftware: Algebra 1 - Radical Equations Easy Part 2

### Overview

This YouTube video will help explain how to teach radical equations using a worksheet from Kuta Software. Kuta Software is free software for math teachers that creates worksheets in a matter of minutes. There are a series of three videos available to fully teach this concept. The videos are labeled Radical Equations Easy Part 1, Radical Equations Easy Part 2, and Radical Equations Easy Part 3. This video can be played as a continuation of a lesson on radical equations. This video is 7 minutes and 52 seconds in length.

9, 10, 11, 12

Audio/Video

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

Kuta Software provides users with simple yet effective math worksheets for free! This site also features test and worksheet generators and various free trials for math instructors.

CUSTOM

yvetteakridge

## KutaSoftware: Algebra 1 - Radical Equations Easy Part 3

### Overview

This YouTube video will help explain how to teach radical equations using a worksheet from Kuta Software. Kuta Software is free software for math teachers that creates worksheets in a matter of minutes. There are a series of three videos available to fully teach this concept. The videos are labeled Radical Equations Easy Part 1, Radical Equations Easy Part 2, and Radical Equations Easy Part 3. This video can be played as a continuation of a lesson on radical equations. This video is 7 minutes and 25 seconds in length.

9, 10, 11, 12

Audio/Video

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

Kuta Software provides users with simple yet effective math worksheets for free! This site also features test and worksheet generators and various free trials for math instructors.

CUSTOM

yvetteakridge

## KutaSoftware: Algebra 1 - Rational Equations Easy Part 1

### Overview

This YouTube video will help explain how to teach rational equations using a worksheet from Kuta Software. Kuta Software is free software for math teachers that creates worksheets in a matter of minutes. There are a series of four videos available to fully teach this concept. The videos are labeled Rational Equations Easy Part 1, Rational Equations Easy Part 2, Rational Equations Easy Part 3, and Rational Equations Part 4. This video can be played to introduce a lesson on rational equations. This video is 10 minutes and 55 seconds in length.

9, 10, 11, 12

Audio/Video

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

Kuta Software provides users with simple yet effective math worksheets for free! This site also features test and worksheet generators and various free trials for math instructors.

CUSTOM

yvetteakridge

## KutaSoftware: Algebra 1 - Rational Equations Easy Part 2

### Overview

This YouTube video will help explain how to teach rational equations using a worksheet from Kuta Software. Kuta Software is free software for math teachers that creates worksheets in a matter of minutes. There are a series of four videos available to fully teach this concept. The videos are labeled Rational Equations Easy Part 1, Rational Equations Easy Part 2, Rational Equations Easy Part 3, and Rational Equations Part 4. This video can be played to introduce a lesson on rational equations. This video can be played as a continuation of a lesson on rational equations. This video is 10 minutes and 41 seconds in length.

9, 10, 11, 12

Audio/Video

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

Kuta Software provides users with simple yet effective math worksheets for free! This site also features test and worksheet generators and various free trials for math instructors.

CUSTOM

yvetteakridge

## KutaSoftware: Algebra 1 - Rational Equations Easy Part 3

### Overview

This YouTube video will help explain how to teach rational equations using a worksheet from Kuta Software. Kuta Software is free software for math teachers that creates worksheets in a matter of minutes. There are a series of four videos available to fully teach this concept. The videos are labeled Rational Equations Easy Part 1, Rational Equations Easy Part 2, Rational Equations Easy Part 3, and Rational Equations Easy Part 4. This video can be played to introduce a lesson on rational equations. This video can be played as a continuation of a lesson on rational equations. This video is 12 minutes and 37 seconds in length.

9, 10, 11, 12

Audio/Video

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

Kuta Software provides users with simple yet effective math worksheets for free! This site also features test and worksheet generators and various free trials for math instructors.

CUSTOM

yvetteakridge

## KutaSoftware: Algebra 1 - Rational Equations Easy Part 4

### Overview

This YouTube video will help explain how to teach rational equations using a worksheet from Kuta Software. Kuta Software is free software for math teachers that creates worksheets in a matter of minutes. There are a series of four videos available to fully teach this concept. The videos are labeled Rational Equations Easy Part 1, Rational Equations Easy Part 2, Rational Equations Easy Part 3, and Rational Equations Easy Part 4. This video can be played to introduce a lesson on rational equations. This video can be played as a continuation of a lesson on rational equations. This video is 9 minutes and 28 seconds in length and can be assigned through Google Classroom.

9, 10, 11, 12

Audio/Video

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

Kuta Software provides users with simple yet effective math worksheets for free! This site also features test and worksheet generators and various free trials for math instructors.

CUSTOM

yvetteakridge

## Adding and Subtracting Polynomials Assessment

### Overview

This Kuta Software worksheet will provide a formative assessment of adding and subtracting polynomials that is important for the students' learning. This resource will grant the teacher ways to give specific, useful feedback to the students as they learn. This assessment can be assigned through Google Classroom.

9, 10, 11, 12

Assessment

### Learning Resource Type

Classroom Resource

### Resource Provider

Kuta Software

Kuta Software is free software for math teachers that creates worksheets in a matter of minutes. Kuta Software allows a teacher the ability to craft his/her own assignments with the exact difficulty of each problem before it is printed, and the teacher can tailor his/her assignments to each lesson or student instead of piecing together lessons around preset assessments. This site also features test generators and various free trials for math instructors.

Custom

## Area Model for Multiplication

### Overview

When first learning to multiply two 2-digit numbers, students will use the area model. To start, students will use their knowledge of place value to decompose into tens and ones. To decompose means to break apart. This video will introduce students to this strategy.

4

Audio/Video

### Learning Resource Type

Classroom Resource

PBS

Custom

## Adding Up and Taking Away

### Overview

Children will practice and explore strategies for solving addition and subtraction problems, such as using counters and rulers, performing mental math, and drawing pictures. As children encounter different outlandish scenarios with their PBS KIDS friends, they will explore, reinforce, and advance their addition and subtraction skills.

1

### CR Resource Type

Learning Activity

### Learning Resource Type

Classroom Resource

PBS

Custom

## Decomposing Fractions

### Overview

To decompose means to break apart. Students already decomposed whole numbers with number bonds, tape diagrams, and place value charts. In fourth grade, they will decompose fractions.

4

Audio/Video

### Learning Resource Type

Classroom Resource

### Resource Provider

PBS

2019 ALCOS

15. Model and justify decompositions of fractions and explain addition and subtraction of fractions as joining or separating parts referring to the same whole.
a. Decompose a fraction as a sum of unit fractions and as a sum of fractions with the same denominator in more than one way using area models, length models, and equations.
b. Add and subtract fractions and mixed numbers with like denominators using fraction equivalence, properties of operations, and the relationship between addition and subtraction.
c. Solve word problems involving addition and subtraction of fractions and mixed numbers having like denominators, using drawings, visual fraction models, and equations to represent the problem.

Custom

## Solving Two-Step Word Problems

### Overview

In third grade, students will solve two-step word problems using addition, subtraction, multiplication, and division. For example: There were ten adults and five children at the movies. Each adult ticket costs \$8.00 and each child ticket costs \$3.00. What is the total cost of all the tickets? The video demonstrates how to solve this problem.

3

Audio/Video

### Learning Resource Type

Classroom Resource

PBS

Custom

## A Walk in the Park: Odd Squad

### Overview

Odd Squad agents Olive and Otto use addition and subtraction to figure out what's causing people in the park to be covered in plaids and stripes, especially when Otto is suddenly covered in yellow and white polka dots.

2

Audio/Video

### Learning Resource Type

Classroom Resource

PBS

Custom

## Adding and Subtracting Rational Numbers Assessment

### Overview

Students will use the Quizizz response system to complete an Adding and Subtracting Rational Numbers Assessment. Quizizz allows the teacher to conduct student-paced formative assessments through quizzing, collaboration, peer-led discussions, and presentation of content in a fun and engaging way for students of all ages.

7

Assessment

### Learning Resource Type

Classroom Resource

### Resource Provider

Quizizz

• Quizizz allows the teacher to conduct student-paced formative assessments in a fun and engaging way for students of all ages. Teachers have multiple options to customize their quiz sessions to toggle the level of competition, speed, and other factors.
• If the teacher does not have a Quizizz account, he/she will need to create an account by logging on to Quizizz.  (More information on how Quizizz works can be found at Getting Started.)
• The teacher is able to assess students' understanding while the game is being played by the students. After the game has ended, the teacher should have meaningful dialogue on the process and procedures of the assessment to correct any misconceptions.
• Students will complete their work digitally. This makes it easy to go paperless for this activity.
• Each student will need access to a digital device, such as a tablet or laptop. The teacher can have students set up a FREE student account so they can view their in-progress/completed assessments.

Custom

## Land the Plane

### Overview

In this Desmos activity, students practice finding equations of lines in order to land a plane on a runway. Most of the challenges are well-suited to slope-intercept form, but they are easily adapted to other forms of linear equations depending on the goals of an individual class or a student. This activity should be used to help teach a lesson on slope-intercept. This Desmos activity offers sample student responses and a teacher guide.

9, 10, 11, 12

### CR Resource Type

Learning Activity

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

Desmos

Desmos's mission is to help every student learn math and love learning math. Teachers can explore and enjoy Desmos collections of free digital math activities that include:

• Meaningful feedback by showing students what their answers mean, then give them the opportunity to improve their thinking and revise their work.
• Collaboration by using devices to connect students, not to isolate them. Students see their classmates' thinking. They ask each other questions and create challenges for each other.
• Invites students to solve challenging problems using the tools they already have.

If the teacher does not have an account, he/she will need to create a FREE account. (More information on how Desmos works can be found at Getting Started.)

Once the teacher has selected an activity to run, he/she will need to click on the "Create Class Code" button. This will generate a unique class code and a link to view the dashboard. (More information can be found at Creating a Class Code.) Every new activity will need a new class code in order to start a session. Students cannot start the activity until they have the class code - so sessions can be started days, hours, or mere minutes before you plan to run the activity. When the teacher is ready to have students start, have the students go to student.desmos.com and enter the class code. Although it is not required, Desmos strongly encourages students to sign in with their Desmos Student Account. Signing in allows students to resume and view their past activity work.

CUSTOM

yvetteakridge

## Hit the Runway

### Overview

In this Desmos activity, students practice finding equations of lines in order to hit the runway. Students will practice writing equations of lines, introducing the concepts of slope-intercept lines. This activity should be used to help teach a lesson on slope-intercept. This Desmos activity offers sample student responses and a teacher guide.

7, 8

### CR Resource Type

Learning Activity

### Learning Resource Type

Classroom Resource

### Resource Provider

Desmos

Desmos's mission is to help every student learn math and love learning math. Teachers can explore and enjoy Desmos collections of free digital math activities that include:

• Meaningful feedback by showing students what their answers mean, then give them the opportunity to improve their thinking and revise their work.
• Collaboration by using devices to connect students, not to isolate them. Students see their classmates' thinking. They ask each other questions and create challenges for each other.
• Invites students to solve challenging problems using the tools they already have.

If the teacher does not have an account, he/she will need to create a FREE account. (More information on how Desmos works can be found at Getting Started.)

Once the teacher has selected an activity to run, he/she will need to click on the "Create Class Code" button. This will generate a unique class code and a link to view the dashboard. (More information can be found at Creating a Class Code.) Every new activity will need a new class code in order to start a session. Students cannot start the activity until they have the class code - so sessions can be started days, hours, or mere minutes before you plan to run the activity. When the teacher is ready to have students start, have the students go to student.desmos.com and enter the class code. Although it is not required, Desmos strongly encourages students to sign in with their Desmos Student Account. Signing in allows students to resume and view their past activity work.

Custom

yvetteakridge

## Graphing Lines

### Overview

In this PhET activity, students will explore the world of lines and investigate the relationships between linear equations, slope, and graphs of lines. The learning goals for this activity will be to explain how the slope of a graphed line can be computed, graph a line given an equation in either slope-intercept or point-slope form, write an equation in slope-intercept or point-slope form given a graphed line, and predict how changing variables in a linear equation will affect the graphed line. This activity should be used to help teach a lesson on graphing linear equations. This PhET activity can be downloaded and assigned to Google Classroom.

9, 10, 11, 12

### CR Resource Type

Learning Activity

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

PhET

Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education research and engage students through an intuitive, game-like environment where students learn through exploration and discovery.

If the teacher does not have a PhET account, he/she can create a FREE account. (More information on how PhET works can be found at Getting Started.)

CUSTOM

yvetteakridge

## Graphing Slope-Intercept

### Overview

In this PhET activity, students explore the slope-intercept form of a line and connect the slope and y-intercept to the equation of the line. The learning goals for this activity will be to graph a line given an equation in slope-intercept form, write an equation in slope-intercept form given a graphed line, predict how changing the values in a linear equation will affect the graphed line, and predict how changing the graphed line will affect the equation. This activity can be used to help teach a lesson on graphing linear equations. This PheET activity can be downloaded and assigned to Google Classroom.

9, 10, 11, 12

### CR Resource Type

Learning Activity

### Learning Resource Type

Classroom Resource

Other

### Resource Provider other

PhET

Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education research and engage students through an intuitive, game-like environment where students learn through exploration and discovery.

If the teacher does not have a PhET account, he/she can create a FREE account. (More information on how PhET works can be found at Getting Started.)

CUSTOM

yvetteakridge

## Desmos: Graphing the Sine Function Using Amplitude, Period, and Vertical Translation

### Overview

In this classroom resource from Desmos, students will build a visual understanding of amplitude, period, and phase shift with an introduction to trigonometric graphing. They can use this understanding to find models for given graphs of the sine function. The resource could also be used to help teach a lesson on trigonometric graphs. The resource includes sample student responses and a teacher's guide.

9, 10, 11, 12

### CR Resource Type

Learning Activity

### Learning Resource Type

Classroom Resource

### Resource Provider

Desmos

Desmos's mission is to help every student learn math and love learning math. Teachers can explore and enjoy Desmos collections of free digital math activities that include:

• Meaningful feedback by showing students what their answers mean, then give them the opportunity to improve their thinking and revise their work.
• Collaboration by using devices to connect students, not to isolate them. Students see their classmates' thinking. They ask each other questions and create challenges for each other.
• Invites students to solve challenging problems using the tools they already have.

If the teacher does not have an account, he/she will need to create a FREE account. (More information on how Desmos works can be found at Getting Started.)

Once the teacher has selected an activity to run, he/she will need to click on the "Create Class Code" button. This will generate a unique class code and a link to view the dashboard. (More information can be found at Creating a Class Code.) Every new activity will need a new class code in order to start a session. Students cannot start the activity until they have the class code - so sessions can be started days, hours, or mere minutes before you plan to run the activity. When the teacher is ready to have students start, have the students go to student.desmos.com and enter the class code. Although it is not required, Desmos strongly encourages students to sign in with their Desmos Student Account. Signing in allows students to resume and view their past activity work.

Custom