In this lesson, students must become detectives to solve for the missing number in each subtraction problem. They will develop and use their powers of mathematical reasoning using number bonds to find differences.

Make sure your students understand the word problem before they begin to solve it! Use this as a stand alone lesson or a pre-lesson for Two-Step Word Problems with Mixed-Operations - Gamified!

Get your students explaining estimations and measurements of liquid volumes and masses of objects! Use this lesson independently or alongside Estimating Measurements of Mass and Volume Using Metric Units.

Use this vocabulary-focused lesson to teach your students about area. It can stand alone or be used as a pre-lesson for Finding the Area of a Rectangle.

Support your students' math fluency by teaching them about the relationship between multiplication and division through fact families. This lesson can stand alone or be used as a pre-lesson for the Do You Know Your Math Facts? lesson.

There are many ways to represent skip counting, so help students find their chosen method! Use this as a stand alone lesson or as a pre-lesson for Skip Counting to Understand Multiplication.

Help your students use multiplication to support their conceptual understanding of division. Use this lesson alone or as a pre-lesson for Division: Solving for Unknown Factors.

The ability to analyze the component of a word problem is an important foundation for young mathematicians. Use this as a stand alone lesson or alongside What's the Problem?