Students watch a video that reveals a peer's thinking about multiplying mixed numbers and then demonstrate their understanding of the distributive property of multiplication in this interactive from KET. Students use the Notes tool to critique their peer's mathematical reasoning and then take quizzes and solve problems that require them to apply the distributive property to multiplying mixed numbers.

It all about money! Explore the concept of money in this real-world, unit plan. A collection of six lessons where students practice skills such as coin identification, mental math, menu math, making change, math operations with coins, and more. Thoroughly written, packed with engaging activities, and complete with printable worksheets. A Canadian money lesson that can be easily adapted for U.S. coins.

This short video and interactive assessment activity is designed to teach fourth graders about listing common multiples.

This short video and interactive assessment activity is designed to teach fifth graders about multiple rounds of division - long division word problems.

This short video and interactive assessment activity is designed to teach fifth graders about dividing 3 and 4 digit numbers by 2 digit numbers.

This short video and interactive assessment activity is designed to teach fourth graders about dividing 3 and 4 digit numbers by 2 digit numbers.

This page includes long multiplication worksheets for students who have mastered the basic multiplication facts and are learning to multiply 2-, 3-, 4- and more digit numbers. Worksheets can be downloaded and printed for free.

In this video [6:08], learn to use the distributive property to break up 4 x 7 into smaller numbers.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Sal introduces multiplication as equal groups. He relates multiplication to skip counting and repeated addition. [3:12]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Using arrays and repeated addition to multiply. [5:29]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Sal finds the number of objects in equal groups using skip counting and repeated addition. [2:47]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

This video [8:34] learn about changing the order of numbers or decomposing numbers to simplify multiplication problems.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Gain a basic understanding of decimal arithmetic by watching this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [12:14]

Gain a basic understanding of prime factorization by watching this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [6:40]

In this lesson, students students explore locomotor and non-locomotor movement and calculate the area needed to perform the African-American dance Zudio.

In this lesson, students will create and solve word problems involving money (addition, subtraction, multiplication, and division of decimals), and develop a script for a short scene and perform it using the elements of performance. Media resources and teacher materials are included.

This video provides an example of a multiplication puzzle that helps you practice your facts. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept. [3:55]

This video provides another example of a multiplication puzzle that helps you practice your facts. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept. [3:26]

Equations and Inequalities

Type of Unit: Concept

Prior Knowledge

Students should be able to:

Add, subtract, multiply, and divide with whole numbers, fractions, and decimals.
Use the symbols <, >, and =.
Evaluate expressions for specific values of their variables.
Identify when two expressions are equivalent.
Simplify expressions using the distributive property and by combining like terms.
Use ratio and rate reasoning to solve real-world problems.
Order rational numbers.
Represent rational numbers on a number line.

Lesson Flow

In the exploratory lesson, students use a balance scale to find a counterfeit coin that weighs less than the genuine coins. Then continuing with a balance scale, students write mathematical equations and inequalities, identify numbers that are, or are not, solutions to an equation or an inequality, and learn how to use the addition and multiplication properties of equality to solve equations. Students then learn how to use equations to solve word problems, including word problems that can be solved by writing a proportion. Finally, students connect inequalities and their graphs to real-world situations.