# Tangram Ratio, Unit Rate and Proportions

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(944 KB|6 pages)
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Tangrams are 7 piece puzzles that date back to Ancient China. In this set of puzzles, students will work to solve four different sets of problems, creating four different animal tangram puzzles. In the first puzzle, they will solve for the missing piece of the proportion. In the other three puzzles, they will work to find unit rates and simplify ratios.

I recommend that students solve the problem first, writing their answers above each one THEN cut out the puzzle pieces. With the answers written on the pieces, assembling the puzzle is an easier process. Make sure to line up the answer with the problem. When everything is correct, the student will make one of the puzzles on the cover page.

I print the puzzles out on white copy paper, and let the students glue their finished animal on construction paper. They use the back of the construction paper to show their work. Once everything is glued down, they staple it onto the classroom bulletin board, or we hang them in the hallway. You can also print the tangram puzzle on color paper and laminate for a durable puzzle that can be reused.

I use these tangrams as a center station. Not only are they great for working on math skills, but they are perfect for practicing fine motor skills: cutting/scissor practice and assembling the puzzle.

Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.
Recognize and represent proportional relationships between quantities.
Compute unit rates associated with ratios of fractions, including ratios of lengths, areas and other quantities measured in like or different units. For example, if a person walks 1/2 mile in each 1/4 hour, compute the unit rate as the complex fraction ½/¼ miles per hour, equivalently 2 miles per hour.
Total Pages
6 pages
N/A
Teaching Duration
30 minutes
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