PBS
Pbs: Solving Equivalent Fraction Problems: Bianca's New Pet
In the accompanying classroom activity, students use equivalent fractions to solve a problem and create word problems of their own.
Khan Academy
Khan Academy: Add and Subtract Fractions Word Problems
Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Purple Math
Purplemath: "Coin" Word Problems
This site demonstrates how to solve 'coin' word problems, given relationships between the types of coins.
PBS
Pbs: Word Problems Using Addition and Subtraction of Fractions: Harry Gets Locked Up
This video features Harry and his cousin Harley. Harley is desperate to use Harry's bike, but first he must decipher the combination to the bike lock by solving a word problem. In the accompanying classroom activity, students complete a...
Illustrative Mathematics
Illustrative Mathematics: G Srt Folding a Square Into Thirds
The goal of this task is to apply knowledge about similar triangles in order to understand an origami construction: trisection of the side of a square. Aligns with G-SRT.B.5.
University of Cambridge
University of Cambridge: Nrich: It Figures!
Learn fraction multiplication with this fun tutorial.
Help Algebra
Help algebra.com: Decimals
Keeping in mind that decimals are really fractions, this site shows you how to convert decimals and work with them in solving equations.
OpenStax
Open Stax: Conservation of Energy
In the following tutorial, students will learn about the law of conservation of energy. They will read about some of the many forms of energy. They will understand the definition of efficiency of an energy conversion process as the...