Room 15 kids are studying perimeter and circumference this week. The formula for perimeter is simply P=2l + 2w, or length + width times 2. The formula for circumference is C= diameter x 3.14 (pi). Students are also engaged in a competitive Mathketball Tourney, which continues through next week. Here’s the homework for this week: Tuesday, Jan. 18; Wednesday, Jan. 19; Thursday, Jan. 20; Friday, Jan. 21st.