Sets of cards, each containing a linear relationship in the form of: an equation, words, a table of values, the points from the table of values plotted on a Cartesian plane. Students find a set of 4 cards which match. Each set contains 4 distractors (orphan cards with no matches). As extension, students can create the three other cards which would go with the orphan cards. SOLUTIONS: SET A A 2 cow apple C 5 chick watermelon E 1 dog banana no match: B 4 pig cherry SET B X 10 pizza butterfly Y 15 caterpillar burger S 17 ant popcorn no match: Q, 12 spider lollipop