Triangle congruence is coming up soon. I’ve always done some kind of activity where students construct triangles and discover which ones are congruent. One activity is Road Kill Cafe shared with me by @craigklement. I’m not sure where it originally came from, sorry. Below is another construction activity we have done very similar to Road Kill Cafe.
Some of my students get so bogged down in the construction of the triangles, they miss the whole point of the activity. So this year, I wanted a visual to show them. I started my search in Google and stumbled upon this gem. I do plan to use it, but AFTER we have discovered which theorems produce congruent triangles. What I didn’t find was a good set of videos to demonstrate the construction of these triangles. So… I decided to make them. Using Google Slides, I created some stop motion “videos” to demonstrate these constructions. Click over to my other blog, Infinitely Teaching, to check out a tutorial on how to make them.
Hopefully students can see the relationship with these and not get caught up in the construction process.
Make Math Not Suck 
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