**Title:** Number Carousel

**Description:**
First grade students will be able to use various strategies and their understanding of addition to make 10 and 17 in multiple ways. Lesson will help students use 2 or 3 different numbers to make 10 or use 2 or 3 different numbers to create numbers up to 20.
This is a College- and Career-Ready Standards showcase lesson plan.
**Standard(s): **

[MA2015] (1) 2:

**Subject:**Mathematics (1)

**Title:**Number Carousel

**Description:**First grade students will be able to use various strategies and their understanding of addition to make 10 and 17 in multiple ways. Lesson will help students use 2 or 3 different numbers to make 10 or use 2 or 3 different numbers to create numbers up to 20. This is a College- and Career-Ready Standards showcase lesson plan.

**Title:** Camp Add 'Em Up

**Description:**
When you go to camp, you expect to have a great time and learn a lot. The Camp Add 'Em Up lesson series is designed to guide a first grade student through development of addition and subtraction strategies through patterning. This lesson has the unique element of offering the learning pages in Spanish for students who are bilingual or for the teacher who would like to integrate Spanish language elements into lessons. Creative learners and technical learners have options included within each lesson as extension activities.
**Standard(s): **

[MA2015] (1) 3:

**Subject:**Mathematics (1)

**Title:**Camp Add 'Em Up

**Description:**When you go to camp, you expect to have a great time and learn a lot. The Camp Add 'Em Up lesson series is designed to guide a first grade student through development of addition and subtraction strategies through patterning. This lesson has the unique element of offering the learning pages in Spanish for students who are bilingual or for the teacher who would like to integrate Spanish language elements into lessons. Creative learners and technical learners have options included within each lesson as extension activities.

**Title:** Cookie Jar Subtraction

**Description:**
In this language development subtraction lesson English Language Learners will learn and practice using vocabulary and sentence structures for subtraction. The lesson incorporates technology, hands-on manipulatives, and multiple opportunities for interaction to engage students in the math content. The format follows the Sheltered English Instructional Protocol (SIOP).
**Standard(s): **

[MA2015] (1) 18:

**Subject:**Mathematics (1)

**Title:**Cookie Jar Subtraction

**Description:**In this language development subtraction lesson English Language Learners will learn and practice using vocabulary and sentence structures for subtraction. The lesson incorporates technology, hands-on manipulatives, and multiple opportunities for interaction to engage students in the math content. The format follows the Sheltered English Instructional Protocol (SIOP).

**Title:** You Can Add!

**Description:**
Students will learn ways to add using the associative property of addition. Students will view a PowerPoint presentation to introduce associative property of addition.
**Standard(s): **

[MA2015] (1) 7:

**Subject:**Mathematics (1), or Technology Education (K - 2)

**Title:**You Can Add!

**Description:**Students will learn ways to add using the associative property of addition. Students will view a PowerPoint presentation to introduce associative property of addition.

**Title:** How Many Times Did You Add That?

**Description:**
After watching the video clip of the Hershey's plant, students will use grid paper to investigate multiplication as repeated addition.
This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
**Standard(s): **

[SS2010] LWT2 (2) 7:

**Subject:**Mathematics (1 - 4), or Social Studies (2)

**Title:**How Many Times Did You Add That?

**Description:**After watching the video clip of the Hershey's plant, students will use grid paper to investigate multiplication as repeated addition. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.

**Title:** Multiplication Facts, Facts, Facts and Some Reese's Pieces for Snack!!

**Description:**
This lesson teaches the basic math multiplication facts in a fun way so that students will want to remember them. Knowledge of all multiplication facts will help with learning subsequent skills in longer multiplication, division, fractions, etc.
**Standard(s): **

[MA2015] (3) 5:

**Subject:**Mathematics (1 - 3), or Technology Education (3 - 5)

**Title:**Multiplication Facts, Facts, Facts and Some Reese's Pieces for Snack!!

**Description:**This lesson teaches the basic math multiplication facts in a fun way so that students will want to remember them. Knowledge of all multiplication facts will help with learning subsequent skills in longer multiplication, division, fractions, etc.

**Title:** Toy Store Money

**Description:**
During this lesson students will have the opportunity to use real coins to purchase items in a class department store. Students will work to determine which coins they need to purchase an object. They will also practice counting skills on the Internet before the big shopping day.
**Standard(s): **

[MA2015] (2) 7:

**Subject:**Mathematics (K - 2), or Technology Education (K - 2)

**Title:**Toy Store Money

**Description:**During this lesson students will have the opportunity to use real coins to purchase items in a class department store. Students will work to determine which coins they need to purchase an object. They will also practice counting skills on the Internet before the big shopping day.

**Title:** Hundred Blocks Board

**Description:**
In this lesson students will practice adding, subtracting, and multiplying without regrouping using a hundred blocks board. Students will be given opportunities to identify and discuss different patterns that they discover and relate number patterns to visual patterns.
**Standard(s): **

[MA2015] (3) 9:

**Subject:**Mathematics (K - 3), or Technology Education (K - 2)

**Title:**Hundred Blocks Board

**Description:**In this lesson students will practice adding, subtracting, and multiplying without regrouping using a hundred blocks board. Students will be given opportunities to identify and discuss different patterns that they discover and relate number patterns to visual patterns.

**Title:** Who's in the Fact Family?

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore the relation of addition to subtraction. Students use problem-solving skills to find fact families, including those in which one addend is zero or in which the addends are alike.
**Standard(s): **

[MA2015] (1) 8:

**Subject:**Mathematics

**Title:**Who's in the Fact Family?

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore the relation of addition to subtraction. Students use problem-solving skills to find fact families, including those in which one addend is zero or in which the addends are alike.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Zero Our Hero

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore sets of zero items and practice writing the numbers 0 through 5. Students count back from five, identify sets of up to five items, and record 0 on a chart. They also construct sets of up to five items.
**Standard(s): **

[MA2015] (0) 3:

**Subject:**Mathematics

**Title:**Zero Our Hero

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore sets of zero items and practice writing the numbers 0 through 5. Students count back from five, identify sets of up to five items, and record 0 on a chart. They also construct sets of up to five items.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Fact Families

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students use books and connecting cubes to explore the relationship of addition to subtraction. Students search for related addition and subtraction facts for a given number using a virtual or actual calculator to find differences. They also investigate fact families when one addend is 0 as well as when the addends are the same. Several pieces of literature appropriate for use with this lesson are suggested.
**Standard(s): **

[MA2015] (1) 8:

**Subject:**Language Arts,Mathematics

**Title:**Fact Families

**Description:**In this lesson, one of a multi-part unit from Illuminations, students use books and connecting cubes to explore the relationship of addition to subtraction. Students search for related addition and subtraction facts for a given number using a virtual or actual calculator to find differences. They also investigate fact families when one addend is 0 as well as when the addends are the same. Several pieces of literature appropriate for use with this lesson are suggested.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Where Will I Land?

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students find differences using the number line, a continuous model for subtraction. Students are encouraged to predict differences and to compose puzzles involving subtraction. This lesson provides rich experiences in reasoning and problem solving.
**Standard(s): **

[MA2015] (2) 13:

**Subject:**Mathematics

**Title:**Where Will I Land?

**Description:**In this lesson, one of a multi-part unit from Illuminations, students find differences using the number line, a continuous model for subtraction. Students are encouraged to predict differences and to compose puzzles involving subtraction. This lesson provides rich experiences in reasoning and problem solving.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Comparing Connecting Cubes

**Description:**
In this seven-lesson unit from Illuminations, students use connecting cubes to explore the five models of subtraction (counting, sets, number line, balanced equations, and inverse of addition). The lessons focus on the comparative mode of subtraction. Students explore the relationship between addition and subtraction, write story problems in which comparison is required, and practice the subtraction facts. Several pieces of literature appropriate for use with this lesson are suggested.
**Standard(s): **

[MA2015] (2) 1:

**Subject:**Mathematics

**Title:**Comparing Connecting Cubes

**Description:**In this seven-lesson unit from Illuminations, students use connecting cubes to explore the five models of subtraction (counting, sets, number line, balanced equations, and inverse of addition). The lessons focus on the comparative mode of subtraction. Students explore the relationship between addition and subtraction, write story problems in which comparison is required, and practice the subtraction facts. Several pieces of literature appropriate for use with this lesson are suggested.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Lost Buttons

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students investigate subtraction more directly, beginning with the easier take away mode. They model take away subtraction with buttons and write subtraction sentences. They also work with the additive identity (0) as an addend and as a difference and find missing addends.
**Standard(s): **

[MA2015] (2) 18:

**Subject:**Language Arts,Mathematics

**Title:**Lost Buttons

**Description:**In this lesson, one of a multi-part unit from Illuminations, students investigate subtraction more directly, beginning with the easier take away mode. They model take away subtraction with buttons and write subtraction sentences. They also work with the additive identity (0) as an addend and as a difference and find missing addends.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Sum Search

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students practice addition facts in a concentration-game format using dominoes. Then, they generate sums to given numbers using a calculator and record them on a hundred board and look for patterns. Later, they record their current level of addition-fact mastery on an addition table.
**Standard(s): **

[MA2015] (1) 5:

**Subject:**Mathematics

**Title:**Sum Search

**Description:**In this lesson, one of a multi-part unit from Illuminations, students practice addition facts in a concentration-game format using dominoes. Then, they generate sums to given numbers using a calculator and record them on a hundred board and look for patterns. Later, they record their current level of addition-fact mastery on an addition table.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** What Balances?

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore subtraction using a pan balance. They use subtraction facts to generate related addition facts and explore at the concrete level the idea of subtraction as the inverse of addition.
**Standard(s): **

[MA2015] (1) 5:

**Subject:**Mathematics

**Title:**What Balances?

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore subtraction using a pan balance. They use subtraction facts to generate related addition facts and explore at the concrete level the idea of subtraction as the inverse of addition.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Take Away

**Description:**
This lesson, from Illuminations, helps introduce elementary students to subtraction. The objective is to create a link between students experiences and mathematics. By the end of the lesson, it is expected that students should have a deep understanding of subtraction and how it relates to their world.
**Standard(s): **

[MA2015] (1) 1:

**Subject:**Mathematics

**Title:**Take Away

**Description:**This lesson, from Illuminations, helps introduce elementary students to subtraction. The objective is to create a link between students experiences and mathematics. By the end of the lesson, it is expected that students should have a deep understanding of subtraction and how it relates to their world.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Finding the Balance

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore another model of subtraction, the balance. Students also explore recording the modeled subtraction facts and the related addition facts in equation form.
**Standard(s): **

[MA2015] (1) 7:

**Subject:**Mathematics

**Title:**Finding the Balance

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore another model of subtraction, the balance. Students also explore recording the modeled subtraction facts and the related addition facts in equation form.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** How Many More Fish? Looking Back and Moving Forward

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students use the mathematical knowledge and skills developed in the previous lessons as they play games involving comparative subtraction.
**Standard(s): **

[MA2015] (2) 21:

**Subject:**Mathematics

**Title:**How Many More Fish? Looking Back and Moving Forward

**Description:**In this lesson, one of a multi-part unit from Illuminations, students use the mathematical knowledge and skills developed in the previous lessons as they play games involving comparative subtraction.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Shirts Full of Buttons

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore subtraction in the comparative mode by answering questions such as How many more? and How many less? as they match sets of buttons. They also make and discuss bar graphs based on the number of buttons they are wearing.
**Standard(s): **

[MA2015] (2) 23:

**Subject:**Mathematics

**Title:**Shirts Full of Buttons

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore subtraction in the comparative mode by answering questions such as How many more? and How many less? as they match sets of buttons. They also make and discuss bar graphs based on the number of buttons they are wearing.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Counting Back and Counting On

**Description:**
This lesson, one of a multi-part unit from Illuminations, focuses on the counting model for subtraction. Students model numbers as a counting book is read. They then make a chain of links and write in vertical and horizontal format the differences suggested by adding and subtracting one link at a time from their chains. Finally, they draw a chain showing one link being taken away and write in two formats the difference it represents.
**Standard(s): **

[MA2015] (2) 20:

**Subject:**Mathematics

**Title:**Counting Back and Counting On

**Description:**This lesson, one of a multi-part unit from Illuminations, focuses on the counting model for subtraction. Students model numbers as a counting book is read. They then make a chain of links and write in vertical and horizontal format the differences suggested by adding and subtracting one link at a time from their chains. Finally, they draw a chain showing one link being taken away and write in two formats the difference it represents.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** How Many More?

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students write subtraction problems, model them with sets of fish-shaped crackers, and communicate their findings in words and pictures. They record differences in words and symbols. The additive identity is reviewed in the context of comparing equal sets. Several pieces of literature appropriate for use with this lesson are suggested.
**Standard(s): **

[MA2015] (1) 8:

**Subject:**Mathematics

**Title:**How Many More?

**Description:**In this lesson, one of a multi-part unit from Illuminations, students write subtraction problems, model them with sets of fish-shaped crackers, and communicate their findings in words and pictures. They record differences in words and symbols. The additive identity is reviewed in the context of comparing equal sets. Several pieces of literature appropriate for use with this lesson are suggested.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Investigating Greater Than, Less Than, and Equal To

**Description:**
Students are introduced to the concepts of greater than, less than, and equal to by observing quantities and making comparisons. Using varied instructional materials such as play dough, buttons, beans, and cotton balls, students will create amounts to compare with the use of a double-sided fish. Depending on its position, the fish cut-out (with its mouth open) can represent either greater than or less than. For equivalent amounts, a clam cut-out can represent equal to.
**Standard(s): **

[MA2015] (1) 2:

**Subject:**Mathematics

**Title:**Investigating Greater Than, Less Than, and Equal To

**Description:**Students are introduced to the concepts of greater than, less than, and equal to by observing quantities and making comparisons. Using varied instructional materials such as play dough, buttons, beans, and cotton balls, students will create amounts to compare with the use of a double-sided fish. Depending on its position, the fish cut-out (with its mouth open) can represent either greater than or less than. For equivalent amounts, a clam cut-out can represent equal to.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Addend Pairs to 12

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore pairs of numbers that add to 12 or less by playing a game. They then add to their personal addition chart and prepare a new chart that allows access to the facts they do not know.
**Standard(s): **

[MA2015] (1) 6:

**Subject:**Mathematics

**Title:**Addend Pairs to 12

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore pairs of numbers that add to 12 or less by playing a game. They then add to their personal addition chart and prepare a new chart that allows access to the facts they do not know.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Combining Foods

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore addition and comparison subtraction by modeling and recording related addition and subtraction facts for a given number. The students also investigate the commutative property and model fact families, including those in which one addend is zero and those in which the addends are alike.
**Standard(s): **

[MA2015] (1) 2:

**Subject:**Health,Mathematics

**Title:**Combining Foods

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore addition and comparison subtraction by modeling and recording related addition and subtraction facts for a given number. The students also investigate the commutative property and model fact families, including those in which one addend is zero and those in which the addends are alike.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Hopping Backward to Solve Problems

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students determine differences using the number line to compare lengths. At the end of the lesson, the students use reasoning and problem-solving to predict differences and answer puzzles involving subtraction.
**Standard(s): **

[MA2015] (1) 1:

**Subject:**Mathematics

**Title:**Hopping Backward to Solve Problems

**Description:**In this lesson, one of a multi-part unit from Illuminations, students determine differences using the number line to compare lengths. At the end of the lesson, the students use reasoning and problem-solving to predict differences and answer puzzles involving subtraction.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Comparing Sets

**Description:**
In this lesson, one of a multi-part unit from Illuminations, a children s book sets the stage for encouraging students to review counting back. Students write subtraction problems and model them with cubes. They then compare sets and record differences in the form of a table. The additive identity is reviewed in the context of comparing equal sets. Several pieces of literature appropriate for use with this lesson are suggested.
**Standard(s): **

[MA2015] (2) 13:

**Subject:**Language Arts,Mathematics

**Title:**Comparing Sets

**Description:**In this lesson, one of a multi-part unit from Illuminations, a children s book sets the stage for encouraging students to review counting back. Students write subtraction problems and model them with cubes. They then compare sets and record differences in the form of a table. The additive identity is reviewed in the context of comparing equal sets. Several pieces of literature appropriate for use with this lesson are suggested.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Do It With Dominoes

**Description:**
In this six-lesson unit from Illuminations, students explore the four models of addition (counting, sets, number line, and balanced equations) using dominoes. Students also learn about the order property, the relation between addition and subtraction, and the result of adding 0. Students engage in a variety of activities, including writing story problems in which the operation of addition is required, beginning to memorize addition facts, investigating properties of addition, and representing addition in pictures.
**Standard(s): **

[MA2015] (2) 13:

**Subject:**Mathematics

**Title:**Do It With Dominoes

**Description:**In this six-lesson unit from Illuminations, students explore the four models of addition (counting, sets, number line, and balanced equations) using dominoes. Students also learn about the order property, the relation between addition and subtraction, and the result of adding 0. Students engage in a variety of activities, including writing story problems in which the operation of addition is required, beginning to memorize addition facts, investigating properties of addition, and representing addition in pictures.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Links Away: Looking Back and Moving Forward

**Description:**
This lesson, one of a multi-part unit from Illuminations, reviews the work of the previous lessons and suggests a framework for summative assessment. Students review the models for subtraction, use the properties of subtraction, and memorize subtraction facts. During this lesson, students use the mathematical knowledge and skills developed in the previous lessons to demonstrate understanding and ability to apply that knowledge to playing a new game.
**Standard(s): **

[MA2015] (2) 2:

**Subject:**Mathematics

**Title:**Links Away: Looking Back and Moving Forward

**Description:**This lesson, one of a multi-part unit from Illuminations, reviews the work of the previous lessons and suggests a framework for summative assessment. Students review the models for subtraction, use the properties of subtraction, and memorize subtraction facts. During this lesson, students use the mathematical knowledge and skills developed in the previous lessons to demonstrate understanding and ability to apply that knowledge to playing a new game.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Taking Away Sets

**Description:**
This lesson, one of a multi-part unit from Illuminations, encourages students to explore another model for subtraction, the familiar set model. Reading one of the many books that feature subtraction sets the stage for this lesson in which the students write story problems, find differences using sets, and present results in a table. In the discussion of the table, they focus on the effects of subtracting all and subtracting 0.
**Standard(s): **

[MA2015] (1) 5:

**Subject:**Mathematics

**Title:**Taking Away Sets

**Description:**This lesson, one of a multi-part unit from Illuminations, encourages students to explore another model for subtraction, the familiar set model. Reading one of the many books that feature subtraction sets the stage for this lesson in which the students write story problems, find differences using sets, and present results in a table. In the discussion of the table, they focus on the effects of subtracting all and subtracting 0.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Block Pounds

**Description:**
In this lesson, from Illuminations, students explore the use of variables as unknowns as they solve for the weights of objects using information presented in pictures. They also model situations that involve the addition and subtraction of whole numbers, using objects, pictures, and symbols.
**Standard(s): **

[MA2015] (2) 13:

**Subject:**Mathematics

**Title:**Block Pounds

**Description:**In this lesson, from Illuminations, students explore the use of variables as unknowns as they solve for the weights of objects using information presented in pictures. They also model situations that involve the addition and subtraction of whole numbers, using objects, pictures, and symbols.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Building Sets of 13 and 14

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore sets of 13 and 14. They construct and identify sets of size 13 and size 14. They then compare sets to sets of size 13 and size 14, record the number in the sets, and decompose a set of 13 and a set of 14 in several ways.
**Standard(s): **

[MA2015] (2) 13:

**Subject:**Mathematics

**Title:**Building Sets of 13 and 14

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore sets of 13 and 14. They construct and identify sets of size 13 and size 14. They then compare sets to sets of size 13 and size 14, record the number in the sets, and decompose a set of 13 and a set of 14 in several ways.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Finding Sums to Six

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students discover the role of the additive identity and explore sums to six. They continue to fill in their personal addition chart.
**Standard(s): **

[MA2015] (1) 6:

**Subject:**Mathematics

**Title:**Finding Sums to Six

**Description:**In this lesson, one of a multi-part unit from Illuminations, students discover the role of the additive identity and explore sums to six. They continue to fill in their personal addition chart.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Counting to Find Sums

**Description:**
This lesson, one of a multi-part unit from Illuminations, focuses on the counting model for addition and begins with reading a counting book. Students model the numbers with counters as the book is read. Then they count the spots on each side of a domino and write in vertical and horizontal format the sums suggested by dominoes. Finally, the students illustrate a domino and record a sum it represents for their portfolio. Several pieces of literature appropriate for use with this lesson are suggested.
**Standard(s): **

[MA2015] (1) 6:

**Subject:**Mathematics

**Title:**Counting to Find Sums

**Description:**This lesson, one of a multi-part unit from Illuminations, focuses on the counting model for addition and begins with reading a counting book. Students model the numbers with counters as the book is read. Then they count the spots on each side of a domino and write in vertical and horizontal format the sums suggested by dominoes. Finally, the students illustrate a domino and record a sum it represents for their portfolio. Several pieces of literature appropriate for use with this lesson are suggested.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Let's Learn Those Facts: Looking Back and Moving Forward

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students display their knowledge of properties of objects for sorting and creating patterns. They also demonstrate an understanding of commutativity and model addition and subtraction of whole numbers using different representations.
**Standard(s): **

[MA2015] (2) 9:

**Subject:**Mathematics

**Title:**Let's Learn Those Facts: Looking Back and Moving Forward

**Description:**In this lesson, one of a multi-part unit from Illuminations, students display their knowledge of properties of objects for sorting and creating patterns. They also demonstrate an understanding of commutativity and model addition and subtraction of whole numbers using different representations.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Fact Family Fun

**Description:**
In this lesson, one of a multi-part unit from Illuminations, the relation of addition to subtraction is explored with fish-shaped crackers. The students search for related addition and subtraction facts for a given number and investigate fact families when one addend or the difference is 0.
**Standard(s): **

[MA2015] (2) 2:

**Subject:**Mathematics

**Title:**Fact Family Fun

**Description:**In this lesson, one of a multi-part unit from Illuminations, the relation of addition to subtraction is explored with fish-shaped crackers. The students search for related addition and subtraction facts for a given number and investigate fact families when one addend or the difference is 0.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** 3.2.1 BEE done

**Digital Tool:**
abcya.com **Web Address URL:**
http://www.abcya.com/subtraction_game.htm **Standard(s): **

[MA2015] (1) 1:

**Digital Tool Description:**ABCya.com is a free, educational site equipped with activities and computer games for elementary students to learn on the web. All of the computer activities were created and/or approved by certified school teachers. All of the educational games are free and are also modeled from primary grade lessons and enhanced to provide an interactive way for students to learn.

**Title:**3.2.1 BEE done

**Digital Tool:**abcya.com

**Digital Tool Description:**ABCya.com is a free, educational site equipped with activities and computer games for elementary students to learn on the web. All of the computer activities were created and/or approved by certified school teachers. All of the educational games are free and are also modeled from primary grade lessons and enhanced to provide an interactive way for students to learn.

**Title:** Electronic Abacus

**Description:**
This student interactive, from Illuminations, explores the use of an abacus model for representing numbers and for performing addition. Students can work through several different activities, all of which explore addition.
**Standard(s): **

[MA2015] (3) 11:

**Subject:**Mathematics

**Title:**Electronic Abacus

**Description:**This student interactive, from Illuminations, explores the use of an abacus model for representing numbers and for performing addition. Students can work through several different activities, all of which explore addition.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2,3,4,5