So I created a handful of activities because I love using Geogebra. I can’t believe I didn’t know that there are spreadsheets in Geogebra (I’ve never read the manual :/), and I’m definitely going to look into using Kevin’s lesson when we get to trig functions and graphs. But as a review for my Precalculus students, I created a discovery activity where students get to see functions dilating and translating (I call them “stretching” and “shifting” or “sliding” because I think it’s more intuitive for the students… and I often forget the official names).
Here are two of the activities that we’ve used so far, and I like the activities because it starts assuming that the student has never used Geogebra. Later activites, I get to assume that the student is experienced with Geogebra and I don’t have to write each step explicitly down, but I was shocked at how few of my students were able to follow such clear step-by-step instructions, even though they are all juniors or seniors in high school!
EDIT: Even after doing this for one year, students found some wrong problems, so I’ve edited the second packet to include these corrections:
Let me know if you have suggestions for these activities!