Scaffolded Math and Science: hole punch math

Showing posts with label hole punch math. Show all posts

Geometric transformations in the coordinate plane with a hole punch

In this post I share an easy, hands-on method for demonstrating reflections and rotations of geometric shapes and their coordinates in the coordinate plane. The video included in the post covers reflecting over the x-axis, over the y-axis and over the line y = x. This same method will work for reflecting over any line of symmetry in the coordinate plane, even linear equations. I then share an idea for showing geometric rotations with a hole punch.

Last week, I wrote a post about using a hole punch to find function inverses in algebra. A few people asked on Facebook if the process would also work for geometric reflections, and it absolutely does!

High school geometry ideas post

In this post I want to share a few templates for geometric transformations in the coordinate plane, along with a couple videos showing how the templates work.

Are your algebra or algebra 2 students learning how to find inverse functions? Here's how to make the process of finding function inverses easy, visual and hands-on-- with a hole punch!

Are your algebra students learning how to find inverse functions? Here's how to make the process of finding function inverses easy, visual and hands-on-- with a hole punch! This same process can also be used for reflecting any graph or geometric shape over the x-axis, y-axis, y = x or any other line of symmetry on the coordinate plane.

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Geometric transformations in the coordinate plane with a hole punch

How to find inverse functions with a hole punch