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.

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.

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

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

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

What does it feel like to take 120 steps? In this lesson, students practice counting and completing word problems up to 120.

In this lesson, your students will become familiar with shapes by identifying them in real life. Your students will love identifying how many sides shapes have by drawing and counting them!

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

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.

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.

Teach students to be stronger readers before they even begin reading! All they need is a book, their mind, and some sticky notes!

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

Introduce your class to composite shapes with this lesson that reviews geometric shapes and makes use of tangram puzzles. This lesson will give your students a strong base for learning geometry later on in their school careers.

Your young scientists will have tons of fun visiting measurement stations and using tools to measure various objects. They'll even be able to create posters at the end of the activity.

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.

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.

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

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.

Looking for a fun way to learn about measurement? Inch on over to this engaging lesson. Students will love using their own feet to determine the lengths of different objects.

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

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

Your students are probably used to answering questions. Give them a chance to ask their own with this imaginative lesson on reading comprehension and the ways one can use who, what, when, where, and why.

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!

Engage students in counting through fun "I Spy" activities! Students gain fluency counting and recording numbers to 30.

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

Give first graders a sense of time by introducing them to telling time by the hour. Students who have mastered the numbers 1 to 12 will be eager to keep the class on a time schedule.

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.

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.