Tower Time: Build, Guess, Check challenges teams to build the tallest tower possible using just a few materials in four minutes—and estimate its height before bringing out a ruler.
Teams choose their own way to estimate. Maybe they count how many craft sticks fit along the tower, or compare it to an object they know. Then, they explain their thinking out loud. There’s no single right method.
Kids practice estimating, adjusting on the fly when a tower wobbles, and clearly sharing their reasoning.
Try it at home or in your classroom! Set a timer for four minutes, hand over the supplies, and hold your guesses until the end. When time’s up, ask:
How did you decide how to estimate?
What would you change with four more minutes?
Download the Free Tower Time Instant Challenge PDF.
