The rule was they were not allowed to eat their materials until I had seen and heard their "presentation". (This rule proved more of a challenge for some group members than others, but everyone seemed to enjoy the task pretty well, and most demonstrated a reasonable level of understanding!!)
Ms. Teschow's friend Professor Ganong was nice enough to buy the plates and cookies for this lesson. When he asked Ms. Teschow how many packages of Oreos she needed, Ms. T scratched her head, unsure. "Maybe 4-6 bags?", she suggested.
Was Ms. Teschow's estimate too high? Too low? Or pretty close? Explain your thinking.
(Hint, each bag of Oreo cookies has 4 rows of 7 cookies in it. Think: What other information do you need to solve this problem?)