National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Cake Recipe Ratio
Dr. Math has to go into the kitchen to solve this real-world problem. A student is looking for a solution to a ratio problem about baking a cake. You'll need to stir up your knowledge of ratios, fractions, decimals, proportions, and...
Illustrative Mathematics
Illustrative Mathematics: 4.md Margie Buys Apples
This task gives students an opportunity to work with familiar fractions and decimals in a context involving money. Aligns with 4.MD.A.2.
Texas Instruments
Texas Instruments: From a Distance, You Can See It!
In this activity, students find the distance between points using common fractions and decimals, with the concepts of midpoint and distance. They also learn to solve problems using the Pythagorean theorem.
Khan Academy
Khan Academy: Rational Numbers on the Number Line
Practice placing positive and negative fractions and decimals on the number line. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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