Pathway A
Current School Mastery™
Master the mathematics being taught at school through deeper conceptual understanding, multiple representations, reasoning, verification, and targeted practice.
Concept First
Before practicing procedures, we build the concept. Why does this work? What structure does it expose?
Multiple Representations
Every idea is shown symbolically, numerically, graphically, and in words — because understanding one representation is not mastery.
Verify, Don't Assume
A correct answer without verification is a guess. We check through substitution, estimation, and alternate methods.
Worked example — solving a linear equation
A demonstration of the GUS framework, multiple representations, and the full thinking ladder applied to one problem.
Given
- •3x + 2
- •The equation 3x + 2 = 17
Unknown
- •The value of x
Strategy
Isolate x using inverse operations: subtract 2, then divide by 3. Verify by substituting back.
Multiple representations
3x + 2 = 17 ⟹ 3x = 15 ⟹ x = 5
Step-by-step reasoning
1 / 3- 1
Subtract 2 from both sides
3x + 2 − 2 = 17 − 2 ⟹ 3x = 15Why: Inverse of +2 is −2; keeps balance.
Hint ladder
0 hints usedTry independently first. Climb only as far as you need.
Verify your answer
0/3 checksProposed answer: x = 5
Error detective
A student wrote 3x + 2 = 17 ⟹ 3x = 19 ⟹ x = 19/3. What went wrong?
Where this leads next
Linear equations in one variable→Systems of linear equations
Once one equation is mastered, two unknowns need two equations — enter systems and substitution/elimination.