**Title:** Lay It on the Line

**Description:**
This lesson allows students to explore their surroundings to locate and prove the presence of perpendicular lines. Students will use the corner of a ruler as a tester to determine right angles contained in classroom items. It can be included in a unit on geometry and measurement.
This is a College- and Career-Ready Standards showcase lesson plan.
**Standard(s): **

[MA2015] (4) 27: Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles. [4-G2]

**Subject:**Mathematics (4)

**Title:**Lay It on the Line

**Description:**This lesson allows students to explore their surroundings to locate and prove the presence of perpendicular lines. Students will use the corner of a ruler as a tester to determine right angles contained in classroom items. It can be included in a unit on geometry and measurement. This is a College- and Career-Ready Standards showcase lesson plan.

**Title:** Pizza Problems: An Angle Investigation

**Description:**
This investigative lesson allows students to identify angle measurements as part of a larger angle. Students will deconstruct 180 degree angles into equal parts.
This is a College- and Career-Ready Standards showcase lesson plan.
**Standard(s): **

[MA2015] (4) 25: Recognize angle measure as additive. When an angle is decomposed into nonoverlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real-world or mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure. [4-MD7]

**Subject:**Mathematics (4)

**Title:**Pizza Problems: An Angle Investigation

**Description:**This investigative lesson allows students to identify angle measurements as part of a larger angle. Students will deconstruct 180 degree angles into equal parts. This is a College- and Career-Ready Standards showcase lesson plan.

**Title:** Talking in Circles

**Description:**
The students will identify parts of the circle including center, radius, diameter, chord, and arc.
This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
**Standard(s): **

[MA2015] (4) 23: Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement. [4-MD5]

**Subject:**Mathematics (4)

**Title:**Talking in Circles

**Description:**The students will identify parts of the circle including center, radius, diameter, chord, and arc. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.

**Title:** Weight vs. Capacity

**Description:**
This lesson will introduce students to measuring weight, mass, volume, and capacity using metric and cutomary units.
This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
**Standard(s): **

[MA2015] (5) 19: Make a line plot to display a data set of measurements in fractions of a unit (^{1}/_{2}, ^{1}/_{4}, ^{1}/_{8}).
Use operations on fractions for this grade to solve problems involving information presented in line plots. [5-MD2]

**Subject:**English Language Arts (3), or Mathematics (3 - 5), or Technology Education (3 - 5)

**Title:**Weight vs. Capacity

**Description:**This lesson will introduce students to measuring weight, mass, volume, and capacity using metric and cutomary units. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.

**Title:** $100 Picture

**Description:**
This is a lesson where collaborative learning groups are used to explore perimeter and area of an irregular figure using pattern blocks. This lesson should be used after students have already had some experience with finding the perimeter and area of a figure.This lesson plan was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project.
**Standard(s): **

[MA2015] (5) 14: Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction. [5-NF4]

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

**Title:**$100 Picture

**Description:**This is a lesson where collaborative learning groups are used to explore perimeter and area of an irregular figure using pattern blocks. This lesson should be used after students have already had some experience with finding the perimeter and area of a figure.This lesson plan was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project.

**Title:** The Class Quilt

**Description:**
Students will design a 12 inch quilt square consisting of geometrical shapes.They must use their knowledge of fractions and polygons in order to create an exact 12" by 12" square.Students will use knowledge of area of a figure in order to create a quilt using their squares.This lesson plan was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project.
**Standard(s): **

[MA2015] (5) 26: Classify two-dimensional figures in a hierarchy based on properties. [5-G4]

**Subject:**Mathematics (3 - 5)

**Title:**The Class Quilt

**Description:**Students will design a 12 inch quilt square consisting of geometrical shapes.They must use their knowledge of fractions and polygons in order to create an exact 12" by 12" square.Students will use knowledge of area of a figure in order to create a quilt using their squares.This lesson plan was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project.

**Title:** Building with Triangles

**Description:**
This unit of four lessons, from Illuminations, focuses on triangles and their properties. Each investigation begins with an open-ended question that challenges students to become actively involved in mathematical experiments, ideas, discussions, manipulative materials, tools, and techniques.
**Standard(s): **

[MA2015] (4) 27: Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles. [4-G2]

**Subject:**Mathematics

**Title:**Building with Triangles

**Description:**This unit of four lessons, from Illuminations, focuses on triangles and their properties. Each investigation begins with an open-ended question that challenges students to become actively involved in mathematical experiments, ideas, discussions, manipulative materials, tools, and techniques.

**Thinkfinity Partner:**Illuminations

**Grade Span:**3,4,5,6,7,8

**Title:** Geography of Pizza

**Description:**
In this lesson, from Xpeditions, students analyze Earth's surface according to the spatial elements of points, lines, and areas, and use a simple map to identify features in terms of spatial elements. This lesson uses a pizza restaurant to introduce these components to students, e.g., the location of a restaurant (point), roads and sidewalks (lines), and the city blocks or the region served by a restaurant (area).
**Standard(s): **

[SS2010] GHS (3) 8: Identify geographic links of land regions, river systems, and interstate highways between Alabama and other states. (Alabama)

**Subject:**Mathematics - Applied Mathematics - Social Studies - Geography

**Title:**Geography of Pizza

**Description:**In this lesson, from Xpeditions, students analyze Earth's surface according to the spatial elements of points, lines, and areas, and use a simple map to identify features in terms of spatial elements. This lesson uses a pizza restaurant to introduce these components to students, e.g., the location of a restaurant (point), roads and sidewalks (lines), and the city blocks or the region served by a restaurant (area).

**Thinkfinity Partner:**National Geographic Education

**Grade Span:**3,4,5

**Title:** Clothing Sizes

**Description:**
This reproducible worksheet, from an Illuminations lesson, prompts students to analyze measurements of their body, specifically as they relate to clothing sizes.
**Standard(s): **

[MA2015] (5) 20: Recognize volume as an attribute of solid figures, and understand concepts of volume measurement. [5-MD3]

**Subject:**Mathematics

**Title:**Clothing Sizes

**Description:**This reproducible worksheet, from an Illuminations lesson, prompts students to analyze measurements of their body, specifically as they relate to clothing sizes.

**Thinkfinity Partner:**Illuminations

**Grade Span:**3,4,5

**Title:** Constructing a Three-Dimensional Model

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students build a three dimensional model of a clubhouse from two dimensional blueprints designed in an earlier lesson. In addition, they solve problems related to constructing and decorating their clubhouse.
**Standard(s): **

[MA2015] (4) 26: Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures. [4-G1]

**Subject:**Arts,Mathematics

**Title:**Constructing a Three-Dimensional Model

**Description:**In this lesson, one of a multi-part unit from Illuminations, students build a three dimensional model of a clubhouse from two dimensional blueprints designed in an earlier lesson. In addition, they solve problems related to constructing and decorating their clubhouse.

**Thinkfinity Partner:**Illuminations

**Grade Span:**3,4,5

**Title:** Rectangles and Parallelograms

**Description:**
In this lesson, from Illuminations, students use dynamic software to examine the properties of rectangles and parallelograms and then identify what distinguishes a rectangle from a more general parallelogram. Using spatial relationships, they examine the properties of two- and three-dimensional shapes. The lesson links to a virtual manipulative that allows students to compare rectangles and parallelograms.
**Standard(s): **

[MA2015] (4) 26: Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures. [4-G1]

**Subject:**Mathematics

**Title:**Rectangles and Parallelograms

**Description:**In this lesson, from Illuminations, students use dynamic software to examine the properties of rectangles and parallelograms and then identify what distinguishes a rectangle from a more general parallelogram. Using spatial relationships, they examine the properties of two- and three-dimensional shapes. The lesson links to a virtual manipulative that allows students to compare rectangles and parallelograms.

**Thinkfinity Partner:**Illuminations

**Grade Span:**3,4,5

**Title:** Number and Operations Web Links

**Description:**
This collection of Web links, reviewed and presented by Illuminations, offers teachers and students information about and practice in concepts related to arithmetic. Users can read the Illuminations Editorial Board's review of each Web site, or choose to link directly to the sites.
**Standard(s): **

[MA2015] (5) 26: Classify two-dimensional figures in a hierarchy based on properties. [5-G4]

**Subject:**Mathematics

**Title:**Number and Operations Web Links

**Description:**This collection of Web links, reviewed and presented by Illuminations, offers teachers and students information about and practice in concepts related to arithmetic. Users can read the Illuminations Editorial Board's review of each Web site, or choose to link directly to the sites.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,1,2,3,4,5,6,7,8,9,10,11,12

**Title:** Communicating about Mathematics Using Games: Playing Fraction Tracks

**Description:**
Mathematical games can foster mathematical communication as students explain and justify their moves to one another. In addition, games can motivate students and engage them in thinking about and applying concepts and skills. This e-example from Illuminations contains an interactive version of a game that can be used in the grades 3-5 classroom to support students' learning about fractions. e-Math Investigations are selected e-examples from the electronic version of the Principles and Standards of School Mathematics (PSSM). The e-examples are part of the electronic version of the PSSM document. Given their interactive nature and focused discussion tied to the PSSM document, the e-examples are natural companions to the i-Math investigations.
**Standard(s): **

[MA2015] (5) 26: Classify two-dimensional figures in a hierarchy based on properties. [5-G4]

**Subject:**Mathematics

**Title:**Communicating about Mathematics Using Games: Playing Fraction Tracks

**Description:**Mathematical games can foster mathematical communication as students explain and justify their moves to one another. In addition, games can motivate students and engage them in thinking about and applying concepts and skills. This e-example from Illuminations contains an interactive version of a game that can be used in the grades 3-5 classroom to support students' learning about fractions. e-Math Investigations are selected e-examples from the electronic version of the Principles and Standards of School Mathematics (PSSM). The e-examples are part of the electronic version of the PSSM document. Given their interactive nature and focused discussion tied to the PSSM document, the e-examples are natural companions to the i-Math investigations.

**Thinkfinity Partner:**Illuminations

**Grade Span:**3,4,5

**Title:** Concentration

**Description:**
This student interactive from Illuminations allows students to play the classic game of Concentration by themselves or against a friend. The interactive can be used to review numbers, shapes, multiplication facts, fractions, decimals, and percents.
**Standard(s): **

[MA2015] (4) 23: Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement. [4-MD5]

**Subject:**Mathematics

**Title:**Concentration

**Description:**This student interactive from Illuminations allows students to play the classic game of Concentration by themselves or against a friend. The interactive can be used to review numbers, shapes, multiplication facts, fractions, decimals, and percents.

**Thinkfinity Partner:**Illuminations

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