Activity 01
Inquiry Circle: The Most Efficient Way
Groups receive a mixed collection of play coins (varying for each group) and the task: count the total two different ways and record both. They then decide which way was faster and write one sentence explaining why. Groups share strategies and the class builds a list of efficiency principles.
Compare the value of different coins and bills.
Facilitation TipDuring Collaborative Investigation: The Most Efficient Way, circulate and ask guiding questions like, ‘How did you group the coins to count them?’ to uncover their strategies.
What to look forProvide students with a collection of 5 pennies, 3 nickels, 2 dimes, and 1 quarter. Ask them to write the total value in both cents and dollars. Then, pose a simple word problem: 'If you have 50¢ and buy a pencil for 15¢, how much money do you have left?'