Use this lesson to review three-digit addition strategies including base-ten drawings, number lines, and the standard algorithm.

In this lesson, students will add three-digit numbers using expanded form addition and standard algorithm addition. They'll explain their answers and highlight the steps for each of the strategies.

Will one be left out? Students will practice creative problem solving as they strive to answer this question and determine whether a group is even or odd.

Cats are the best! Pizza is better! My teacher rules! In Fact or Opinion: Part 1, your students will combine reading and writing to learn about the differences between facts and opinions and how those differences are communicated.

Get your students excited about money! Have them make connections between their prior knowledge of base-ten numerals and one, ten, and hundred dollar bills.

In this lesson, students will learn how to add a one-digit number to a two-digit number. This will help students build upon the skills needed for regrouping larger numbers.

Freshen up on your understanding of division word problems with long division and one-digit divisors! Use this lesson to help students identify key division terms and solve word problems.

In this lesson, your students will compare numbers to one thousand using place value charts and symbols. Your students will love practicing with numbers!

10, 20, 30, and up! In this lesson, students learn strategies for multiplying one-digit numbers by multiples of ten (10 through 90) through practice problems and playing a fun, hands-on game.

Help your students subtract with confidence by sharing two different strategies. Use this lesson to build on students’ understanding of subtraction and to evaluate this key skill.

Can you break a ten? An everyday exchange of money can help students think about regrouping to subtract. Students will use bundled popsicle sticks to see how values grouped into tens can be regrouped into ones to allow us to subtract.

How are quadrilaterals connected? In this lesson, your students will learn about the relationship between quadrilaterals by drawing, defining, and labeling different ones.

What exactly does the number 97 mean? How about 454? In this lesson, students explore how two-digit numbers are made up of tens and ones. Then they use this understanding to subtract numbers within 1000.

This lesson will help students build an understanding of multiples as they learn how to subtract from multiples of 100!

Help your students practice place value with this fun, hands-on base-ten block game. Neighborhood block teams compete to win points as they work together to show expanded numbers.

Word problems getting you down? Then spread the word on a lesson that will help students decide when to add or subtract, as they identify clue words that aid in solving word problems.

Students will become more familiar with common metric measurements by matching everyday objects with the metric mass and volume units they would use to measure them.

Bring on the polygons! Your students will build their understanding of polygons and sort shapes into categories based on their attributes in this lesson.

In this lesson, students will construct their own number lines and bar models to find equivalent fractions.

If you can see it, you can achieve it! Use this lesson to teach your students how to use visuals to determine if two fractions are equivalent.

This tasty lesson will teach second graders about fractions using cookies.

BOOM! Have a blast teaching your students how to find and use patterns within the multiplication table to increase fluency with multiplication and build number sense.

Teach your students to add mixed numbers and improper fractions with the same denominator using the counting up strategy with number lines.

Double-digit trouble? No problem! Your students will practice their decomposing and regrouping skills in this lesson.

It's time to learn about time. In this hands-on lesson, students manipulate clock hands and jump across timelines in order to calculate the "distance" between different times and events.

Get ready to do some shopping! In this lesson, students will learn about subtracting 100 from multiples of 100 when making big purchases.

When reading, we all encounter unknown words at times. But how do we figure them out? In this lesson, students learn how to become a “human dictionary” by using a variety of strategies to figure out the meaning of unknown words.

What's your "it"? This lesson incorporates Tony Dungy's You Can Do It! into some hands-on activities that help students learn about different character traits.

Dive into understanding place value by using place value disks to represent and compare numbers.

Advance your students from relative measurements to learning about standardized units with this lesson that teaches them about inches and feet by using common classroom objects.