I only had about a week to cover transformations so I focused on translations and reflections, and then briefly covered dilations. I used coordinate changes, where (x,y) transformed to (x +2, y-1) or (-x,y) as I feel that will benefit them in later Algebra classes as well. Michael Pershan’s created an excellent Tool for Exploring Transformation Rules using Desmos that I love. I gave my students the link and let them play with it.
Then I had them take out the +5, and +8 so they only had (x,y).
I challenged them to make the house FATTER. It took them a while to figure out they had to multiply a number instead of add. After they were all able to make very fat houses asked them to make it skinner, taller, and shorter. After that, I asked if they thought they could turn it upside down. The students enjoyed making the house different sizes and moving it around. But the best benefit came days later when I only had to mention the house to remind them how to differentiate between the translations and dilations in future work.
Here is the link to the Transformations foldable I created, using Kuta software for some of the graphs.
Love this, Julie!
I was trying to figure this out for myself. Then I realized that my kindred spirits in the #MTBoS probably already produced something awesome and shared it. Whoala! Thank you Julie & Michael.
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