Apply a Newly Defined Operation
A new symbol or rule is defined, and the task is to evaluate or solve by substituting carefully into that definition and respecting order of operations. Learners meet symbol-coded equations they solve in order, then defined operators over whole numbers and fractions. The skill is reading a rule precisely and executing it.
grade 2–4 NFOA Convert to AlgebraIdentify Subproblems
Progression (5)
2-2 1. Solve shape-coded products in order 3.OA.A.43.OA.D.8
3-1 2. Evaluate a custom-defined operation symbol 3.OA.D.83.OA.B.5
3-2 3. Set up an expression and compute in order 3.OA.A.33.OA.D.8
4-1 4. A new symbol can define a custom operation 4.OA.A.35.OA.A.1
4-2 5. Apply a defined symbol to compute with fractions 4.NF.B.3