This product consists of 38 cards with angles drawn on them, ranging from 5 degrees to 175 degrees. Cards come in groups of four: one angle, its matching complement, and both of their matching supplements. The angle measures are not labeled – students have to measure them using their own protractors.
Also included are two answer keys - one for the measurement of the angles and the other for the pairs of complementary and supplementary angles.
There is also a Teacher Instruction Sheet which details two plans for using these cards.
These cards can be used for several activities, the two most obvious are Matching and Memory.
Matching – students are given a certain number of cards (1 or 2), and they find their “match” (complementary and/or supplementary) by walking around the room and talking to their peers.
Memory – students are paired and given a certain number of cards – 12, 16, etc. They place the cards face down and find pairs of supplementary angles.
Of course, you can make up your own game!
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