Treating grade, year, source family, or contest label as level.

Treating a representation or answer primitive as public focus.

Applying a procedure without explaining the relationship that makes it valid.

Decision restated without adding a new method.

Common slip nudge: Treating grade, year, source family, or contest label as level.

One useful scaffold after help is requested.

Use for transfer and bridge variants that combine school fluency with contest-style reasoning.