Watch Our Webinars
We have now had 5 Author Talks—FREE 45-minute webinars—featuring Investigations authors discussing topics related to the curriculum. Each ends with a short Q&A focused on questions submitted by participants. Recordings of all 5 are now available.
Imagine you are 6 years old. Or 7. You know you can use your fingers to model subtraction. For example, for a problem where there are 7 grapes and 2 get eaten, you can raise 7 fingers, put down 2, and count how many are left. But what do you do when the problem...read more