Go to any length to test your students' understanding of perimeter calculations. Students will use their understanding of the perimeter of rectangular shapes to create rectangles that have different side measurements but equal perimeters.

In this lesson, your students will calculate and illustrate area for rectangles using area models, where one side length includes a fraction.

Your students will become junior math detectives as they hunt down the missing side of a rectangle by applying the area formula for rectangles. The only clues they have are the rectangle's area and the measure of one side.

Facilitate rich math conversations with this lesson on finding the missing information in problems related to the area of rectangles and squares. It may be taught by itself or used as support to the lesson Finding Area: Furnishing A Room.

Start a dialogue around area models! In this lesson, encourage students to ask questions as they multiply using area models. Use this lesson on its own or as support to the lesson Area Models and Multiplication.

Area models are building blocks to more complicated multiplication and division. Use this lesson to refresh students on the relationship between multiplication and area to prepare them to use the area models strategy with larger numbers.

Use this lesson to teach your students about the major bodies of water by letting them create miniature versions of their own!

Students will solve area problems by multiplying side lengths for rectangular shapes in real world contexts.

Practice calculating perimeter with the placement of carnival-themed games with given rectangular dimensions. Your students will use grid paper to determine the location of all the games they choose to make the perfect carnival.

Teach your students the power of persuasion by preparing them to write persuasive letters. This lesson, complete with brainstorming activities, allows young writers to unlock their inner rhetoricians.

Students will use the inverse relationship between multiplication and division to complete an area formula in a real-world situation. Use this lesson on its own or as support for the lesson The Case of the Missing Rectangle Side.

Let your students decorate their own room with this lesson that has them use area to place furniture in a room.

Compare two different ways to use tape diagrams! This lesson discusses fractions and multiplication within tape diagrams. Use this lesson as support for the lesson Illustrating Fractions and Whole Number Products with Tape Models.

Help students visually represent multiplication with mixed numbers and whole numbers. Use this lesson as a standalone lesson, or as support for the lesson Multiplication of Mixed Numbers with Area Models.

Teach your students to predict and explain features of scaled regular shapes.

Teach your students to organize and solve multiplication word problems using a part-part-whole model.

Can your students associate similar adjectives and nouns using the roots and suffixes? In this lesson, students will learn how to associate nouns with adjectives. Along the way, they will use the roots and affixes to determine the meaning.

Target math academic language in this multidisciplinary lesson! Write descriptive sentences about tape diagrams that show fractional parts. Use this lesson on its own or use it as support for the lesson Fractions and Word Problems.

Challenge students to compare two strategies for solving division expressions! Students will focus on their language use in this pre-lesson to the Dicey Division lesson.

Take your students' division skills to the next level with division word problems! These word problems will focus on the part-whole model and connecting the strategies to students' prior knowledge.

Teach your students to use an area model to solve multiplication problems with mixed numbers.

Finding the area of a rectangle is a key measurement skill to know. In this lesson, your students will enjoy practicing this skill by determining the area of their classroom.

You'll see angles from every angle! Students will describe and compare different angles they see in everyday situations. Use this lesson on its own or use it as support to the lesson Classifying Triangles by Internal Angles.

Teach your students to find the perimeter of polygons using real world examples. They will make polygon pictures using tangrams and practice finding the perimeters of the polygons in their masterpieces.

Put your school on the map! Students will have fun creating an atlas of their very own school that includes maps and reference details.

In this lesson, your students will think about situations that require them to calculate area. Use it as a standalone lesson or as support to the What Is the Area of Your Classroom? lesson.

Help students color-code their way to multiplying fractions! Students will learn how to multiply fractions using area models. Use this lesson on its own or use it as support to the lesson Area Models and Multiplying Fractions.

Help your students visually represent equivalent fractions! Use this lesson on its own or or as support to the Show Me Equivalent Fractions! lesson.

Solve for the sum of two mixed numbers! They will use scaffolds such as fraction models to support the visualization of mixed numbers. This can be used on its own or as support for the lesson Sums for Mixed Numbers and Improper Fractions.

Are these fractions really equal? Use this lesson to introduce the concept of equivalent fractions with your students. Teach this on its own or use it as support for the lesson Equivalent Fractions Using Area Models.