Cut out the cards so that every partner pair has a set. Then let the students match each card up with the Postulates - 2 cards will be used twice! The students use their copy to write down the letters of the cards and rearrange them to spell random words (the words spelled key is included). After that is done, they choose the first card/letter of the word to write the congruency statement of the triangles. Activity takes around 20-25 minutes!