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 FractionsOperations Convert to AlgebraIdentify Subproblems
Progression (5)
g3 1. Solve shape-coded products in order Operations
g3 2. Evaluate a custom-defined operation symbol Operations
g3 3. Set up an expression and compute in order Operations
g5 4. A new symbol can define a custom operation Operations
g4 5. Apply a defined symbol to compute with fractions Fractions
Bridges to competition (5)
Reasoning problems that extend this idea toward competition:
Old multiplication methods Pattern & rule
Convert ancient symbol numerals Pattern & rule
Discover the hidden operation rule Pattern & rule
Decode the shape-to-number rule Pattern & rule
Apply a newly defined symbol rule Pattern & rule