Additional Challenge Question

csd-unit-3-lesson-16
#1

So on the lesson plan it says if students finish the unplugged activity early. You could challenge them to figure out a way to test if the shapes are touching even if they are drawn on a different line. I am wondering if anyone has a potential answer to this? I like this idea and will try to figure it out on my own here soon probably, but if anyone had an answer to that would be nice.

#4

Here are a couple resources to check out that discuss this topic.

https://code.org/curriculum/algebra/19/Teacher