Wednesday, December 14, 2011

Transformations Matching Cards

In my Advanced Algebra 2 class, we discussed the rules for transforming equations (shifts, compressing/stretching and reflections). Tomorrow is our last day before Winter Break (staff still has to go Friday), so rather than give practice problems that won't get done, I put together matching cards. I wrote 6 equations that are transformed from a base function, graphed them on the TI-84 and screen captured them, and wrote the description of how the new graph was transformed from the original. I did 5 sets. Then I put codes in the corner of each card (F#, G#, D#).

Students will work in pairs to match up the triples. I am going to provide them with a worksheet to record their information. Students will need to work through all 5 sets during the class period. I did make some sets easier than others. Cards are 3 1/2" wide by 3" tall and were originally done in Word. Enjoy!

Edit - I updated the box.net file on December 15th - found a typo when doing it in class.

My students got through 2 of the 5 sets in class today (over about 35 minutes or so). We will do the 3 sets they didn't get to the day they return from break. Actually, this will work out nicely, for it will get them back into the swing of things with what we left off with.
--Lisa

1 comment:

Liz Durkin said...

Good idea Lisa. Nice, hands on interactive task. Also you have a good level of challenge for the kids, in distinguishing the graphs.

I have just finished working on this exact unit so cannot steal your idea. :(

I did a unit end assessment where they had to give examples of the effects of a, h and k on quadratic, abs value and sqrt functions - almost exactly what you have here. Then they had to decide how the same rules applied to linear fns, then finally make up their own unusual function and apply the transformations to it.

Also, do you use Geogebra at all? It has a facility where you can use sliders to vary the values of a, h and k, then watch the graph change as the sliders are moved. (I guess it depends on availability of computers.)