What does it mean to expand a number? Use this lesson plan to help your students understand how to write the expanded form of two-digit numbers.

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.

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.

In this engaging, hands-on lesson, students solidify their understanding of place value by adding and regrouping two-digit numbers using M&Ms.

Introduce students to the quarter in this hands-on lesson. This is a great way to reinforce double digit addition.

Your students will turn boring number sentences into fun, Christmas-themed word problems! They will get practice with math and writing as they use their creative juices to write and solve single digit addition word problems.

Learning to quickly identify groups of 10 will be very helpful when your students begin working with multiple digit numbers. In this lesson, your students will work with manipulatives to make number pairs.

Double, double toil and trouble! Use two dice to roll up to 100 with one-digit sumations. In this lesson, students will play a place value game where they race to get to 100 by converting ones to tens.

Your class will love this number comparison lesson that allows them to be hands on in their classroom. Students will use blocks to understand the difference in numbers and what they represent.

Plan ahead for when you'll be out of the classroom! Planning for a substitute in the classroom is no problem at all with this daily sub plan. Your substitute can keep your students learning in your absence by using this packet of lessons, worksheets, and activities.

Students will play the card game War to learn about place value and comparing numbers using the terms "less than", "greater than", and "equal to".

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

Now that your first graders are able to count consecutively, introduce them to the tens and ones place values. Using tens and ones blocks will make math easy and fun for everyone!

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

Introduce hundreds place value to your students. Increase their knowledge of place value while they enjoy working with ones, tens and hundreds blocks.

Help your students understand place value with this hands-on lesson. Using place value cards and interlocking cubes, they'll represent different numbers in a fun, social manner.

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

In this lesson students, learn how to listen and practice community-building skills using the circle process. This lesson helps build community and establish norms for how students communicate with each other.

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.

Discovery is exciting! In this hands-on lesson, your students will discover for themselves the rule behind the commutative property of addition.

It is important for students to gain a better understanding of different ways to write numbers. In this lesson, your students will practice seeing numbers in various ways to help them comprehend the meaning of numbers.

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.

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.