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.

Celebrating the Chinese New Year is fun for family and friends! Use this lesson to teach your students some of the holiday's traditions and events as they practice solving word problems, which involve time and all four math operations.

There’s more than one way to add and subtract mixed numbers! Use this witty lesson plan to teach your students to illustrate mixed number sums and difference while giggling with delight.

Practicing subtraction using a thermometer for a number line makes math fun! In this lesson, your students will get more comfortable with subtracting two digit numbers.

Lay the foundation for multiplication by introducing your second graders to the concepts of skip counting and repeated addition. This lesson can be used alongside Up, Up, and Array, or separately to reinforce these important skills.

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 use partial products as a strategy to multiply multi-digit numbers.

Help your students master decimals with this engaging math lesson. Your class will put their art skills to work creating a poster, and will practice mathematical explanations through peer collaboration.

With this lesson, your students will see how the order of the factors does not affect the product in a multiplication expression. Use this on its own or alongside You're On a Roll! Practicing Multiplication Facts.

Support your students' math fluency by teaching them about the relationship between multiplication and division through fact families. This lesson can stand alone or be used as a pre-lesson for the Do You Know Your Math Facts? lesson.

Use this lesson to introduce the tool of base-ten blocks to your students. This scaffolded EL support lesson can be used as a stand-alone activity, or prior to teaching Three-Digit Addition with Base-Ten Models.

Help your students see the variety of strategies they can use to compare fractions! Students will compare their strategies with that of their classmates. Use this lesson on its own or use it as support for the lesson Fraction Wars.

Do you feel like your students are on a merry-go-round when it comes to rounding? This lesson will give your student control of the “ride” and give them tools to use when rounding.

In this lesson, students will consider equations with fall pictures serving as the number value and decide which equations are true and which is a lie. The worksheets in this speaking and math lesson follow the Two Truths and One Lie game.

In this hands on lesson, students create squares with different fraction pieces while building their knowledge of adding fractions with different denominators.

Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.

Graphs bring data to life and help us draw conclusions about the information presented. In this lesson students will engage with three different kinds of graphs by asking and answering interpretive questions.

Teach your students to add and subtract time using number lines. Your class will be gladly moving backwards and forward to the minute solving for related word problems.

Do your students understand the power of 10? This lesson will allow your students to see the utility of the power of 10 in mathematics and come to a concrete conclusion of how 10 impacts the value of mathematical equations.

Help your students show their understanding as they explain how to add fractions with unlike denominators. Use this lesson on its own or as support to the lesson Make It Work! Adding Fractions with Unlike Denominators.

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.

Let your students show off what they've learned about time, money, and temperature with this lesson that combines all three in one word story.

Teach your students to recognize patterns of zeros when multiplying by powers of 10 with exponents.

Teach your students to calculate fractions of 100 using a number line model.

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

During the Chinese New Year, giving red envelopes full of money is a custom that symbolizes good luck. Use this lesson to teach your students about holiday traditions as they practice counting money.

Want to strengthen your student’s multiplication and division skills? This lesson uses fact families to help students practice those skills.

What's more romantic than a bar graph on Valentine's Day? In this Valentine's Day lesson plan, students will use information from a data set to create their own tally charts and bar graphs and then analyze these graphs to answer questions.

Get your students excited to learn about fractions with this hands on lesson. Working in groups will help students learn from each other and share ideas.

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.