The answer key for “7-1 Additional Practice: Adding and Subtracting Polynomials” sat face-down on Ms. Kellar’s desk, a silent judge.
Slowly, deliberately, Leo turned the page of his own notebook. He crossed out his first attempt on problem #7. He rewrote the subtraction vertically, aligning the like terms: The answer key for “7-1 Additional Practice: Adding
At the top, in blue ink, she had written: “You found the tower. +1 extra credit for honesty. I saw you look at the key and choose not to flip it.” He crossed out his first attempt on problem #7
Leo smiled. The real answer key wasn’t on a separate sheet of paper. It was in the careful, error-by-error process of building his own. I saw you look at the key and choose not to flip it
The next morning, she returned the graded practice. Red checkmarks on 1, 3, 4, 5, 6… and a small, perfect check on #7.
The subtraction was the worst. His friend Mia had whispered, “Just distribute the minus sign, Leo. Like a negative love letter.” But Leo kept forgetting to flip the last sign.