Assessment Problem:

Solve for x without using a pencil.

Mathematical Issues:

Students need to reason about what a question means rather than jump directly to formal procedures which may or may not make the solution easier to find.

Common Responses:

One third of something is 2, so that “something” must be 6. Something plus 4 is six, so that “something” is 2. X=2.

Domain:

Algebraic Relations

Theme:

Solving Equations