Use this lesson to show your students the different types of solids, liquids, and gases. Show them how a solid turns into a liquid and how a liquid turns into a gas by using real life examples.

Where can we find United States symbols? In this lesson, students will not only learn about the familiar United States symbols, but also create a flag full of symbols that represents who they are and what they enjoy.

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

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.

Pop into place! This lessons builds your students' knowledge of numbers, their place value, and how to write them correctly.

Get out those hundred charts! It’s time for students to dive into subtracting multiples of ten.

Mae Jemison was the first African American female astronaut to enter space. Use the Get to Know Mae Jemison lesson plan to learn more about this famous scientist. Children will then read and write about her, and create their own paper rocket.

Use this lesson to teach your students about the life of Frederick Douglass. First, they will read a picture book that shares facts and beautiful illustrations to teach about his life, and then they will record important information about him on a graphic organizer. Lastly, they'll choose an important event from his life to illustrate and caption.

This Halloween-themed hundreds chart game has plenty of tricks and treats! Students will roll two dice to move up and down the chart to be the first to 100. Players will also recognize important number patterns as they move their marker.

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.

This hands-on lesson will get your students to investigate some mystery liquids, and they will have to use their observational skills to figure out what they are.

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.

It’s time to take a trip around the world and experience Christmas in different countries. Students will explore how their Christmas traditions compare and contrast with kids across the world and chart their findings on a Venn diagram.

Get your students synthesizing various subtraction strategies as they work with a partner to solve word problems. This lesson can be used alone or with the lesson plan Show Me the Money! Two-Digit Subtraction.

Students will use their artistic and directional skills as they practice drawing maps and giving directions. By the time it’s done, everyone will know which way is the right way to go!

Make counting fun with colorful counting bears. Students will learn that skip counting is faster than counting by ones. They will also come away from the lesson with ideas of when skip counting can be used.

Your students will learn when to use less than and greater than and how to differentiate the two symbols in this lesson. They will have fun playing the role of the Less Than and Greater Than alligators!

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

Dive deep into word problems with this lesson that teaches students to sketch base-ten blocks to add multiples of 10 and two-digit numbers. Use alone or with the lesson plan Let's Build It! Two-Digit Addition.

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