Students sketch base-ten blocks in this lesson that builds both number sense and fluency adding to 20!

Have a class that can't sit still long enough to practice their addition? This activity puts math and PE together to help your kids add up to 20 while being active!

This bear-y fun lesson will help your students understand addition and subtraction and reward their efforts with a sweet treat!

Make a math mystery! In this lesson, help your students understand the relationship between addition and subtraction and how a missing addend word problem is represented with a number sentence.

Who doesn’t like to spend money and plan parties? Students will subtract two-digit numbers as they calculate the remaining money for their party supplies. They will subtract in multiples of ten and focus on place value.

Students will be jumping with joy after this lesson that helps them practice their subtraction skills with physical activity.

Use a sweet treat to help students do hands-on math! Students will practice their addition skills in this yummy activity.

Get out the dominoes! This fun lesson help students visualize how addition and subtraction are related, all while building their fact family fluency.

Get your students excited about adding by introducing them to word problems with three addends!

Students will gain fluency with adding multiples of ten in this hands-on lesson that builds number sense.

Counting collections are a great way to help students practice counting while gaining practice recording and justifying their thinking. Students will work specifically with the numbers 1-30 to develop fluency counting and writing numbers.

Get your students moving with this activity that helps them practice their addition skills while having fun hunting for their next problem.

Number facts are related, just like families! Help students learn all about fact families while they make fact family trees!

Let’s start building numbers! Just as building skyscrapers is a visual representation of mathematics, students will use the visual representation of base-ten blocks to add—or build—onto a two-digit number.

Every student can be a magician after this lesson in mentally adding and subtracting by 10. No previous magic training required!

Double dominoes! Get your students excited to add with dominoes and playing cards. This lesson is a fun way to help your students continue to learn to add.

It's time-telling time with this fun lesson featuring Trudy Harris' 'The Clock Struck One.' Students will learning about time with a short story and hands-on practice with analog clocks.

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.

Pop into place! This lessons builds your students' knowledge of numbers, their place value, and how to write them correctly.

This lesson will make solving subtraction word problems fun for students. It includes music and interaction to grab your students' attention.

Put your students to the test with this lesson that helps them learn the tens and ones places with a memory game and worksheet!

Make math fun with this lesson that has students work together to solve subtraction sentences. Students will also get a chance to practice their skills individually with a worksheet.

Roll some dice to introduce the early concepts of associative and commutative properties in addition by composing and decomposing 10. Worksheets and a quiz are included!

Drawing on various problem solving techniques, students will challenge themselves to solve word problems involving three whole numbers. Problem solving, critical thinking, and real life applications? This lesson has it all.

Help your students make sense of the greater than, less than and equal to in this interactive lesson! Your students will have opportunities to compare either two-digit or three-digit numbers.