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

Give students an opportunity to practice subtraction and analyze their peers' work with this fun lesson. Young mathematicians will have a great time playing a judging game and completing quirky worksheets.

In this lesson, your students will use repeated addition to find the total number of objects in arrays. This lesson will help your students build upon the skills needed to learn multiplication.

Sometimes students struggle with comprehension, and it can be difficult to pinpoint where the breakdown occurs. Help your students make visual summaries on sticky notes in this lesson!

Encourage your students to take part in some friendly competition with this game that has students practice their addition skills with flashcards.

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.

This lesson provides students with practice as they find the missing parts of a whole and justify their reasoning. Use alongside the What's That Number lesson or alone as a support lesson for students.

Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.

Your students will “hop their way” into understanding place value with this fun and active game! In this lesson, they will learn that changing the order of the digits in a number changes its value.

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.

Use this lesson to support students in understanding the symbols used to record numbers. This lesson can be used alongside Comparing Three-Digit Numbers or as a standalone, scaffolded EL support lesson.

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.

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.

In this scavenger hunt lesson, students will look for rectangular arrays within their school environment. Whether it is a set of cubbies or windows, students will see that arrays are all around us.

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.

Teach your students to read time to the nearest five minutes by counting by fives! Use this lesson as a stand-alone support lesson for ELs or alongside Tricky Time Telling.

Help students gain confidence in recognizing multiples of 10 as they critique a flawed response. Use as a stand-alone scaffolded EL support lesson or prior to teaching Big Spenders.

Use this support lesson to provide students with the opportunity to explore what it means to estimate. This hands on activity can be used alone or alongside the lesson Estimating Length.

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 students develop compare and contrast skills while they examine digital and analog clocks. This lesson can be used independently or in conjunction with the lesson Time to Tell Time: Showing and Writing Time.

Lay the foundation for multiplication by introducing your second graders to the concepts of skip counting and repeated addition. This lesson can be used alongside Up, Up, and Array, or separately to reinforce these important skills.

Help your students learn the standard measures of length and foster critical thinking with this engaging lesson. Use alongside The Smaller They Come or as a stand-alone activity.

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.