Posts tagged transformations

3 results

Why I Love Julie Reulbach and Desmos

Transformations is something I have worked at over the years to have a solid series of activities and notes to help students comprehend how they work. (Side note, maybe I ought to look back at my blog more often. I had forgotten I had put together a couple of these things.) We are in round 1 of transformations. I am working with F.BF.3, which reads Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k (both positive and negative); find the value of k given the graphs. Experiment with cases and illustrate an explanation of the effects on the graph using technology. Include recognizing even and odd functions from their graphs and algebraic expressions for them. The learning target this time is: I can describe the transformation(s) that changed a graph of f(x) by replacing with f(x) + k, k f(x), f(kx), and f(x + k) for specific values of […]

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Transformations Unit

Last year, I shared the transformations matching cards I used with my Advanced Algebra 2 students. With teaching transformations for the first time to all Algebra 2 students, I have revamped my lesson and cards. Thanks are due to @druinok for her help in hashing out what I was doing with this unit. I’m working with F.BF.3: Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k (both positive and negative); find the value of k given the graphs. Experiment with cases and illustrate an explanation of the effects on the graph using technology. Include recognizing even and odd functions from their graphs and algebraic expressions for them. After discussions with both @druinok and our pre-calculus teacher, I decided to hold off on the f(kx) portion. @druinok shared that in her state, they don’t do the horizontal stretches and compression in Algebra 2 and our pre-calculus teacher said that until […]

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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 […]

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