Max explains and demonstrates his interpretation of the equal symbol by saying, “This (the equal symbol)…is telling you the answer.”

What does:

1 + 7 = ___ + 6

have to do with:

3x + 9 = 5x + 5

 …and why are first graders arguing with each other over the meaning of the equal symbol? Continue reading A rich student-to-student discussion by first graders on the meaning of the equal symbol. →