How much longer is a blue whale than an orca? Teach your students to use bar models and number sentences with variables as they solve these wild word problems!

Teach your students to organize and solve multiplication word problems using a part-part-whole model.

Make multiplication a snap with this hands-on math lesson! Your students will learn how to easily multiply large numbers using base-ten blocks and the strategy of breaking apart by place value.

Teach your students to use partial products as a strategy to multiply multi-digit numbers.

Teach your students to use bar models and multiplication to find a fraction of a whole number.

Help your students create a basis for future math classes with this lesson that teaches children about math expressions and how they can interpret them.

Teach your students to multiply by multiples of 10, up to 1,000.

Your fourth graders will not only have fun creating and playing an equivalent fractions memory game in this interactive lesson, they will also become much stronger mathemeticians in the process.

Start a dialogue around area models! In this lesson, encourage students to ask questions as they multiply using area models. Use this lesson on its own or as support to the lesson Area Models and Multiplication.

Teach your students to interpret multiplication as scaling. In this lesson, students will learn to predict the size of a product, using one factor as scale.

Empower your students with the opportunity to design decimal subtraction problems with a given difference (answer). Use this lesson on its own or as support for the lesson Step By Step Decimal Subtraction.

Students will have a blast deepening their understanding of the order of operations, with this lesson which incorporates an interactive team game.

Teach your students to read, write, and understand place value in numbers up to the millions place.

Get your students to enjoy the fall weather while making beautiful leaf patterns inspired by Andy Goldworthy.

Encourage students to explain their processes when converting from a mixed number to an improper fraction, and back again. Use this lesson on its own or as support to the lesson Single Strategy for Adding and Subtracting Mixed Numbers.

This experiment is a fun lesson that captures the ears, eyes, and minds of students! It combines writing, reasoning, predictions, and teamwork with candies and soda to produce a memorable lesson on chemical reactions and energy.

A calm jar works as a visual reminder when teaching emotional regulation techniques. In this lesson, students will practice mindfulness of emotions and create a class calm jar together as a class.

Take your students on a virtual shopping trip to allow them to explore the importance of spending money wisely.

Windmills have been around for generations to grind food and create energy. During this challenge, students will use various materials and put their engineering skills to work by creating their own windmills.

Help your students understand the connection between skip counting, multiples, and multiplication with this lesson. Teach it on its own or use it as support to the lesson Clap Counting with Multiples.

Put the FUN! in function tables with this engaging, interactive lesson that will have your students generating their own patterns and tables.

Teach your students to find the perimeter of polygons using real world examples. They will make polygon pictures using tangrams and practice finding the perimeters of the polygons in their masterpieces.

In this lesson, your students will explore the world through a variety of picture books. They will examine a variety of themes through each text that they read and determine any common themes among the texts.

In this cooperative economics activity, students learn about the division of labor in a real way. Students will be able to see first hand the advantages and disadvantages of the division of labor.

Teach your students about symmetry with real life objects! Have them draw lines of symmetry for various shapes, food items, and objects.

Students will begin to calculate volume of different rectangular prisms using base ten cubes and then transition to using the formula V = L x W x H. Students will then practice using the legendary fifth grade activity, Cootie Catchers.

Let's play jeopardy! In this interdisciplinary lesson, students learn about American rivers, create game questions about the rivers, and then play the game.

Put your school on the map! Students will have fun creating an atlas of their very own school that includes maps and reference details.

Making mistakes helps us learn! Your students will flex their analytical muscles to pinpoint errors in multiplication problems using arrays. Use the lesson on its own or as support to Base Ten Arrays for Multi-Digit Multiplication.

The order of operations is a critical concept for fourth graders to grasp in preparation for algebra. This introductory lesson on the order of operations will teach your students about the helpful acronym PEMDAS.