She didn’t need the key. Not really. She’d written the unit herself—integers, absolute value, order of operations, the first real taste of abstraction for her seventh graders. But this year, she’d split the class into two tracks: regular and enriched. The enriched kids had cryptic puzzles and variable expressions that unfolded like mysteries. The regular kids had solid, scaffolded steps. Both had the same first question: What is the opposite of -9?
Leo was in the regular section but had sneaked an enriched worksheet off her desk yesterday. At lunch, he’d cornered her by the pencil sharpener. pre algebra and pre algebra enriched unit 1 answer key
She smiled. Tomorrow, she’d give Leo the enriched unit 2 pre-test. No key required. She didn’t need the key