pic1

An Investigation of the Learning of Addition and Subtraction, Carpenter and Moser, 1979. Their three year study ran from 1978 to 1981, forming the foundation of CGI.

What are the major structural differences that distinguish different “find the area” problems?

Leave a Reply

Fill in your details below or click an icon to log in:

Gravatar
WordPress.com Logo

You are commenting using your WordPress.com account. ( Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. ( Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. ( Log Out /  Change )

Cancel

Connecting to %s