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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.

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!

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.

Your class will love this outdoor activity that teaches them how to compare the capacity of different containers.

Becoming fluent in reading analog and digital clocks can be very “time” consuming. This interactive lesson will engage young learners while reinforcing an important skill.

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.

This lesson provides students with the opportunity to critically think about data. Use this lesson alongside Line Plots: Representing the Length of Classroom Items or as a stand alone lesson.

We all know how tricky telling time can be for our students. This terrific time lesson will have your students understanding analog clocks in no time!

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, 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.

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.

How big is a foot? Students find out to explore how to measure in feet by comparing their own feet to rulers. Then they set off to measure the length and width of the classroom!

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.

This lesson helps students identify even and odd numbers, which sets the foundation for learning about division, prime numbers, and even square roots. Use this hands on lesson alongside Odd One Out!

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.

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

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

Tap into students' metacognitive skills and get them to think about their thinking! This lesson encourages students to pay attention to the strategies they use while supporting math fluency!

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.

This support lesson provides students with the opportunity to explore elapsed time by discussing the time between timer rings. Use as a pre-lesson to Elapseable or as a stand-alone activity.

Use this lesson to help students build their speaking and listening skills as they learn how to critique a flawed response using discussion cards. Use this as a stand-alone support lesson or alongside the activity Break it Down!

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

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 scaffolded EL support lesson to help students learn the strategy of decomposing three-digit numbers to add their place values. This lesson can be used alone or prior to teaching Composing and Decomposing to students.