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.

Support your EL students in understanding and identifying the main idea and supporting details in a nonfiction text. This can support the lesson Tip of the Iceberg: Nonfiction Summary Details.

Numbers are connected in many ways! Take students on a journey to uncover multiplication and division fact families and inverse relationships. Teach this lesson on its own or prior to the lesson Division and Multiplication Relationship.

Teach your students to multiply fractions by whole numbers in this dynamic hands-on lesson!

Help your students compare and connect two important multiplication strategies: equal groups and repeated addition. This lesson can stand alone or be used as a pre-lesson for Candy 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.

Help your students make sense of the commutative property of multiplication by relating it to arrangements of cars in parking lots.

Get your students talking about number patterns and rules with this introductory lesson on function tables. Use this lesson as a pre-lesson to Input and Output Boxes or teach it on its own.

Help your students discover patterns when multiplying by five.

In this EL support lesson, your students will use introductory phrases to write about the main idea and details in a fictional story.

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.

Help kids master fractions with the fun, fast-paced, math comparison game Fraction Wars. After a review, students are split into pairs to practice quickly comparing fractions with different numerators and denominators.

Teach your students about the attributes that make each shape unique. Use this as a stand alone lesson or as a pre-lesson for Are You Connected to Me?

Students will practice mental math and harness their discussion skills through addition problems of like mixed numbers. This lesson may be used on its own or as support for the lesson Adding Mixed Numbers Using the Decomposition Strategy.

Have students describe the process for solving multiplication problems and ask clarifying questions while in partnerships. Use this lesson as a standalone lesson or as support to the lesson Eye See... Multiplicity.

Get students moving with this interactive lesson! They will use real objects to act out skits while practicing their division skills. This lesson can used on its own or as support for the lesson Introduction to Division with Remainders.

While there are many strategies out there to choose from, help your students focus on the number line strategy for solving elapsed time word problems. Use this lesson independently or alongside Beyond Just Addition.

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.

Challenge students to talk about rounded numbers to the millions place value. Use this lesson as a standalone lesson or as support to the lesson Numbers All A-Round.

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.

Have students analyze sentences to help them solve story problems in the future! Use this lesson on its own or as support to the lesson Part-Whole Model: Word Problems with Division.

Freshen up your understanding of multi-step word problems! Use this lesson to help students use problem-solving thought processes to solve multi-step word problems.

In this lesson, students will create story problems to match mathematical expressions involving multiplying fractions by whole numbers. Use it on its own or as support to the lesson Multiplication Models: Fractions and Whole Numbers.

In this lesson, students will practice identifying the subject and predicate of a sentence and making predictions with textual evidence as they read short fictional texts. Use it as a stand alone lesson or as a precursor to What's Next?

Get your students comfortable with discussing multiple strategies to solve subtraction problems with this lesson on two- and three-digit subtraction. It may be taught independently or as support for the lesson Subtraction with Regrouping.

This lesson focuses on facilitating a rich classroom discussion around the purpose and methods of rounding numbers up to the thousands place. It can be taught on its own or as support to the lesson Rounding with Number Lines.

Getting ready to add fractions? This lesson reviews how to add fractions with unlike denominators using number lines. Students will focus on understanding the process and reasoning behind each step.