# ALEX Resources

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 Learning Activities (3) Classroom Resources (3)

ALEX Learning Activities
Subject: Mathematics (3)
Title: Perimeters of Pools
Description:

During this learning activity, students will solve a real-life task that allows students to find the perimeter of several pools (polygons). Students will write equations and solve them to find the perimeter of several polygons.

Subject: Mathematics (3)
Title: Perimeter Introduction Activity
Description:

This is an introductory activity for teaching perimeter. First, students will watch a perimeter song video. Then, they will work with manipulatives to build a garden (array) and discuss what the measurement would be if a ladybug walked around the edge of the garden. This gives the students an opportunity to explore the perimeter using concrete materials.

Subject: Mathematics (3)
Title: Finding the Unknown Side of Safety Signs
Description:

This learning activity allows students to explain their thinking to find the unknown side of a polygon when the perimeter is given. Students will solve three different problems where the perimeter is given and knowledge of polygon attributes are needed to find the missing sides. This activity can be used as an assessment or an extension activity after students have mastered how to find the perimeter of a polygon.

ALEX Learning Activities: 3

ALEX Classroom Resources
Subject: Mathematics (3)
Title: Grade 3 Math: Perimeter 3.MD.8
Description:

This video features third-grade students from John F. Kennedy Intermediate School located in Deer Park, Long Island. The lesson demonstrates a lesson teaching the following skills:

• Solve real-world problems involving perimeters of polygons, including finding the perimeter given the side lengths and finding an unknown side length.
• Exhibit rectangles with the same perimeter and different areas or with the same area and different perimeters.
• Solve for perimeter using real-world problems.

Subject: Mathematics (3)
Title: Grade 3 Mathematics Module 7, Topic E: Problem Solving With Perimeter and Area
Description:

In Topic E, students solve problems involving area and perimeter. After an initial lesson problem solving with perimeter, students apply this knowledge to create a robot composed of rectangles. Given specific perimeter measurements, they reason about the different side lengths that may be produced. Students compare and analyze their work, discussing how different choices for side lengths can affect area while conforming to the criteria for perimeter. Students synthesize their learning in the final lessons through solving word problems involving area and perimeter using all four operations.

Subject: Mathematics (3 - 4)
Title: Perimeter StudyJam
URL: https://studyjams.scholastic.com/studyjams/jams/math/measurement/perimeter.htm
Description:

In this interactive activity, students will be led through steps to measure and calculate the perimeter of polygons. There are teaching activities as well as practice activities available. A handout that reviews the steps taught during the interactive is available to be printed. After utilizing this resource, the students can complete the short quiz to assess their understanding.

ALEX Classroom Resources: 3