Boston Children's Museum
308 Congress Street, Boston, MA 02210
Math is a natural subject to fit into your everyday work with your students. The Mixing in Math curriculum, created by TERC (click here to visit the website), contains lots of great math activities that require little or no materials, and are easy to fit into what you are already doing. This activity, which is adapted from the Mixing in Math curriculum, helps children practice estimating and counting by 2’s, 5’s and other numbers.
Ask your students if they have ever had to estimate how long something would take. Were they close in their estimations? What are some examples of times when it is helpful for us to be able to estimate the amount of time something might take?
Choose an activity, then estimate how many times you can do it in a minute!
After the first trial, bring all of the students together to share their results. How close were their predictions? Were they surprised by the results? Did they guess that they could do more or less of the activity than they were able to do? Does one minute seem to pass by quickly or slowly?
Ask teams to try again, but for them to switch roles—the counter is now the doer and vice versa. Have them make predictions, try the activity and record their results. Bring the students together again. Were the second students closer in their predictions? What information did they use to help them make their estimations?