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.

Use this introductory lesson on comparison to provide students with practice identifying groups of more and less.

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.

What is the likelihood that a polar bear will walk into the classroom? Students will consider this and other events using the concept of probability and the terms: Impossible, unlikely, likely, and certain.

In this lesson, students will have fun creating addition sentences by drawing and counting ladybug dots.

Students will explore geometric shapes by creating a painting of a trapezoid.

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.