The new question-of-the-week is: What has been the best math lesson you have taught and why do you think it was so good? In Part One, Beth Kobett, Jill Henry, Avery Zachery, Cindy Garcia, Molly ...

Students put objects and materials into groups based on their observable properties, test materials for strength and absorbency, and use their results to make a boat that can hold the most pennies ...