One-Step Equations
Grade 6 · Unit 9
Addition & Subtraction Equations
Inverse operations
Curriculum standard — Understand stage of the Thinking Ladder
Concept first
Addition & Subtraction Equations begins with meaning — what it is and why it holds — before any procedure. The structure comes first; computation follows.
Definition
Addition & Subtraction Equations
The precise meaning of this topic, stated in mathematical terms.
A plain-language restatement so the definition is understood, not just memorized.
Three pathways, one topic