All the activities in this lesson are addition and subtraction based. It is not designed to introduce addition and subtraction, rather, to supplement and enrich lessons already being taught. This lesson is not designed to be completed in one sitting. It may be done throughout an entire addition and subtraction unit. These activities may be used as starter activities when introducing new math concepts, particularly those that relate to addition and subtraction.

In this task students work with partners to measure themselves by laying multiple copies of a shorter object that represents the length unit end to end. It gives students the opportunity to discuss the need to be careful when measuring.

Students learn the metric units engineers use to measure mass, distance (or length) and volume. They make estimations using these units and compare their guesses with actual values. To introduce the concepts, the teacher needs access to a meter stick, a one-liter bottle, a glass container that measures milliliters and a gram scale.

Students explore measurement using kilograms, grams, liters, milliliters, and intervals of time in minutes.

Too Tall Tina is a book about a student who is obsessed with being too tall. It shows examples of many measurement comparisons.

Fish Eyes is a math story, but it is not focused on length. I use this book to have the students compare the length of the different fish in the story.

Students will become more comfortable making sense of equations presented in missing answer (traditional) and missing number ( nontraditional) formats.

Download these free worksheets to sharpen your money skills. Sheets focus on adding and subtracting money, counting coins, dollars, making change, and multiplying and dividing money.

Students explore multi-digit division and its applications, which include interpreting a remainder in division word problems and using division to interpret a repeating pattern.

Students deepen their understanding of multiplication by exploring factors and multiples, multiplicative comparison, as well as multi-digit multiplication.

This short video and interactive assessment activity is designed to teach fourth graders about multi-step money problems.

Students deepen their understanding of multiplication and division, including their properties and extending their study of factors to include all units from 0 to 10, as well as multiples of 10 within 100.

In this lesson designed to enhance literacy skills, students examine how to multiply fractions by whole numbers in the context of a recipe.

In this lesson, students will learn how to add and subtract fractions and mixed numbers using models and by finding common denominators.

In this lesson, students will use keywords and place value charts to solve addition word problems.

In the lesson on composing and decomposing numbers, students will use number bonds and ten frames to help them compose and decompose numbers 11-19.

In this lesson on subtraction, students will use the break apart strategy, draw a model, or the standard algorithm to subtract 3-digit numbers.

In this lesson on telling time to the half-hour, students explore analog and digital clocks by learning key vocabulary and exploring how they are the same and how they are different.

In this lesson about the equal sign, students will learn the meaning of the equal sign and practice using it to create true or false equations.

In this lesson on money word problems, students learn about the different coins, explore skip counting on number lines, and apply their learning to a real-world scenario.