Education &amp; Study

Proportional Relationship Misconception Diagnostic

Check paired quantities for one constant ratio through the origin and compare learner proportionality claims.

Proportional Relationship Practice Review Workbench

Compare unit rates and audit constants and proportionality classifications.

Proportional Relationship Visual Model Builder

Normalize paired quantities to unit-rate strips and audit proportional constants by context.

Quadratic Model Selection Misconception Diagnostic

Use first and second differences to audit model classifications.

Quadratic Roots and Discriminant Misconception Diagnostic

Calculate discriminants and audit real-root classifications.

Question Difficulty Distribution Analyzer

Classify item facility and review both item-count and point-weighted difficulty distributions.

Question Difficulty Distribution Planning Workbench

Compare planned difficulty shares with targets and preserve essential-item evidence.

Quiz Difficulty Analyzer

Calculate item facility and optional upper-versus-lower discrimination with transparent thresholds and review flags for every quiz item.

Quiz Question Builder

Create a bounded, editable quiz question builder from supplied learning information with transparent rules and academic safeguards.

Radical Expression Misconception Diagnostic

Extract exact perfect-square factors and audit complete radical simplification claims.

Radical Expression Visual Model Builder

Extract largest square factors and audit radical simplification evidence.

Ratio Table Reasoning Misconception Diagnostic

Audit ratio-table rows with exact cross-products, scale factors, and additive-pattern diagnostics.