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.

This lesson helps students develop an ability to compare and contrast as they explore two strategies to solve three-digit addition problems. This EL Math lesson can be used alone or alongside Three-Digit Addition Strategies Review.

Use this lesson to support students in learning how to write three-digit numbers as number names. This scaffolded EL lesson can be used alone or as a pre-lesson for All About Three-Digit Numbers.

Help students gain a better understanding of three-digit numbers by providing students with opportunities to compare sets of three-digit numbers. Use as a stand-alone activity or alongside the lesson Building My Math Fluency.

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

Students will get a chance to use multiple methods to compare three-digit numbers. They will also get practice using greater than and less than symbols to show their answers.

Give your students a conceptual understanding of three-digit addition with this lesson focused on base-ten blocks and drawings.

Students will get to explore three-digit numbers through base-ten blocks and written form. Students will get plenty of practice identifying the place values of a number both individually and with the class.

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.

Name that hero! In this lesson, your students will practice adding two digit numbers together. They will get more comfortable adding bigger numbers together, making it easier to add three digit numbers later on.

Help students use two strategies that will help them figure out which three-digit number is greater than, less than, or equal to another three-digit number. Use on its own or with Let's Compare! Place Value Disks & Three-Digit 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.

Guide students to use base ten blocks to solve two-digit by one-digit addition problems with regrouping. This lesson can be used independently or paired with the lesson Adding it All Up.

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

Help students learn the academic vocabulary and symbols used to record the results of comparing two three-digit numbers. This lesson can be used as a stand-alone activity or prior to Greater Than, Less Than: Comparing Three-Digit Numbers.

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.

Dive deep into using base-ten blocks to solve two-digit subtraction problems with regrouping. This lesson can be used independently or in conjuction with the lesson Double Trouble: Subtraction Practice.

It’s easy as 1, 2, 3! In this lesson, students will explore the long vowels A, I, and O and learn how a silent E turns short vowels into long vowels. Students will use technology, music, and body movement to learn all about silent E.

Help students discover how to show numbers in different ways while providing ample opportunities for students to contribute to conversations. Use as a pre-lesson to Let's Jump to Add Two-Digit Numbers or as a stand-alone lesson.

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.

Use this lesson to familiarize students with the place value of each digit within a three-digit number, along with practicing the written form of three-digit numbers. Use prior to teaching Place Value Hop or as a stand alone activity.

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.

Shape up your students' understanding of geometrical attributes with this hands-on math lesson. Students will gain a better understanding of how to describe a shape by the number of edges and vertices it has, rather than by its name.

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 is an important number in math! In this lesson, your students will build an understanding of what 10 really means and the many ways to make 10.

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

In this lesson, your students will break down composite figures to identify 2-D shapes that make them. Students will put together 2-D shapes to create a composite shape.

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

Get students moving around the classroom as they learn about odd and even numbers. Students classify real world objects as odd or even and take turns playing the game master, coming up with numbers to evaluate.

Slice those pieces and mix it up! In this lesson that follows “Slice It Up! Part One,” students will begin recognizing different ways to create equal shares in whole shapes, creating a fraction poster by the end of the lesson.