We had two snow days on Monday and Tuesday.

My standard classes on Wednesday and Thursday had an assessment on one-step equations. In pre-algebra students students explored the distance formula using this resource along with help from portions of this video. The students had some difficulty getting started so I showed the first few minutes to get them thinking about using x coordinates to find the length of the parallel line segment along the x axis.

When I gave them snippets from the video, it was just enough to get them going. Then they would get stuck. I showed a bit more of the video and they would be able to continue. We’ll keep working at it.

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Mary

Nice to link out to that video – very helpful. However, I cannot help but think that a triangle with ‘nicer’ side lengths would be much more helpful early on. Is this one of your first times to tangle with the distance formula?

This is my first year teaching this topic. I wanted a discovery activity and I soon recognized the example right triangle wasn’t that friendly. Can you point me to a better resource?