My son had an interesting problem on his enrichment math homework this week, and it gave him a lot of trouble this morning:
Tonight I thought it would be good to talk through the problem since I think the main idea he needed to solve it was new to him.
Here’s the introduction and some of the ideas he tried this morning:
Next we took a look at the equations on the computer and talked about some of the ideas we saw:
After looking at the graphs of the equations on the computer we came back to the whiteboard to talk about substitution.
Finally, having worked through the introductory part of u-substitution in the last video, I let him finish off the project on his own.
I can’t remember talking through this topic previously, but it was fun. It is always neat to be there when a kid is seeing a math topic for the first time.