Trapezoid Area Investigation: One Cut Puzzles and Other Challenges

Grade Levels
4th - 7th
Resource Type
Formats Included
  • PDF
26 pages
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Listen close and listen good: the only way your students are going to understand and master an important mathematical skill like finding the area of a trapezoid is by engaging in deep and challenging problem solving explorations. It's true and you know it.

So don't be a slouch: try these "one cut" dissection puzzles on your kids - they have to cut out the trapezoids, make a single cut and then reassemble the pieces into a parallelogram (well, actually a rhomboid, but you can read my instructions to learn about that....)

There's lots of good stuff here: lots of trapezoids to cut apart and re-assemble, some practice with identifying the bases and the heights of various trapezoids (because giving a practice sheet where the bases and heights are already identified is sooooo basic!)

There's also a really cool challenge where students have to create 6 different trapezoids that have the same area - there's a really neat trick to doing it, but you're not going to read about it here....

And then there's this......
Total Pages
26 pages
Answer Key
Teaching Duration
2 days
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