I use this activity after students have learned to graph trig functions, sine, cosine, and tangent. Students need to understand how to graph transformations including reflections, phase shifts (horizontal shifts), amplitude (vertical stretch), and vertical shifts. This activity is best for partners as it encourages team work, reinforces use of vocabulary, and facilitates discussions to further understanding of this topic. If you have access to a laminator, the cards will last a lot longer (I’ve