Numberjack

Students are challenged to solve 8 questions about the probability of lengths of pregnancies by matching up cards. The cards have 5 categories; the question, the z-score, the Normal curve with area, the calculator command for TI-84, and the probability notation for the answer. I recommend printing each category on a different color paper. Questions are challenging but attainable, the activity is fun and easy to grade. There are four questions afterward to have students think further about t