Curated OER
Conversations
Eighth graders explore the art of conversation. For this giving instructions lesson, 8th graders discuss and respond to rules, play a game, and practice giving instructions to one another. Students are preparing for communicating in...
PBS
Pbs: Modeling Fraction Division, Equal Groups, Group Size Unknown
This animated video illustrates a word problem that requires dividing two fractions with equal groups, group size unknown. Students are presented with a problem that asks how long it takes a sloth to climb down a tree trunk at an even...
PBS
Pbs: Modeling Fraction Division Using Comparison, Group Size Unknown
This video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to determine the length of a losing frog's jump in a jumping frog contest based on a comparison with the...
PBS
Pbs: Modeling Fraction Division Using Comparison, Group Number Unknown
This animated video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to use fractions to compare the spring weight of a hedgehog with its weight just before hibernation....
PBS
Pbs: Modeling Fraction Division Using Arrays
This video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to determine the width of a rectangular platypus burrow based on its length and area. In the accompanying...
Khan Academy
Khan Academy: Divide by 1 Digit Numbers (Visual Models)
Practice breaking up big division problems into smaller, simpler problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
PBS
Pbs: Area Model for Division
Visualize solutions to multi-digit division problems by modeling them with virtual manipulatives. This interactive exercise focuses on calculating quotients by working with area models and visualizing the distributive property of division.
PBS
Pbs: Dividing a Whole Number by a Unit Fraction
Explore division by modeling problems and grouping with manipulatives. This video focuses on dividing whole numbers by unit fractions and modeling the problems with unit blocks.
Study Pad
Splash Learn: Divide Decimals by Whole Number
[Free Registration/Login Required] Extend multi-digit division of whole numbers to division of a decimal number by a whole. This worksheet game starts off with division problems based on visual models, followed by problems on relative...
PBS
Pbs: Two Kinds of Division
Learn about the two different types of division problems. This video focuses on partitive and quotative models of division and when they're each useful.
Better Lesson
Better Lesson: Exploring the Idea of Division
Third graders will observe and try to model slightly above-level division problems as they practice expressing math questions and possible solutions in mathematical terms.
PBS
Pbs: Kid Vid: Dividing Fractions
Compare a division problem with whole numbers to a similar problem about dividing fractions in this interactive from KET. Students watch a video of a peer talking about a fraction problem that involves equal groups, with the number of...
CK-12 Foundation
Ck 12: Algebra: Problem Solving Plan, Mental Math
[Free Registration/Login may be required to access all resource tools.] Solve word problems using the mental math.
Quia
Ixl Learning: Divide Fractions by Whole Numbers Using Models
Practice dividing fractions by whole numbers with numbers using models.
Math Playground
Math Playground: Thinking Blocks
This lesson teaches students how to use colored blocks to model word problems. There are several sets of problems each for addition / subtraction, multiplication / division, and ratio word problems.
Khan Academy
Khan Academy: Relate Division to Multiplication Word Problems
Find both the multiplication and division equation that can be used to solve a word problem. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints....
CK-12 Foundation
Ck 12: Analysis: Long Division of Polynomials
[Free Registration/Login may be required to access all resource tools.] This lesson introduces how to divide polynomials using long division. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Cool Math
Coolmath: Coolmath4kids: Division: An Introduction
Uses visual models to explain what division is and includes sample problems to try. It also offers links to division games.
CK-12 Foundation
Ck 12: Algebra: Applications Using Linear Models
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving word problems. Students watch a video tutorial, explore guided notes and attempt practice problems.
PBS
Pbs: Modeling Fraction and Mixed Number Division Using Arrays
This video illustrates how to use an array as a visual model for solving a word problem involving the division of fractions and mixed numbers. The problem asks students to determine the width of a rectangular fennec fox den based on its...
Other
Ohio Department of Education: Models for Dividing Fractions [Pdf]
This resource consists of a detailed, hands-on lesson plan for dividing fractions using manipulatives such as fraction bars.
Khan Academy
Khan Academy: Fractions as Division Word Problems
Practice word problems that involve using the fraction bar as division. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: 2.5 Simple Rational Models
This section draws on previous sections that explored how to add, subtract, multiply, and divide rational numbers in order to solve real-world problems involving rational equations. It explores how to apply these procedures in order to...
CK-12 Foundation
Ck 12: Elem Math: Patterns Without Using Multiplication
[Free Registration/Login may be required to access all resource tools.] The video describes how to divide by two using a model to show equal parts to solve a two-digit by one-digit division problem with no remainder. The video is...