Modeling Hard Subtraction 1

Trixie was 2 years and 11 months at the time that this video was made.

The Problem

Trixie is playing with a collection of toy Sesame Street characters. She has 5 Cookie Monsters and 3 Big Birds. First I ask her, "Are there more Cookies or more Big Birds?" When she answers correctly I then ask, "How many more?" (This may be Trixie's first exposure to Hard Subtraction 1.)

What To Look For In This Video

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