Education &amp; Study

Decimal Place Value Misconception Diagnostic

Verify a digit at a power-of-ten place and flag position, value, and factor-of-ten misconceptions.

Decimal Place Value Practice Review Workbench

Check repeated digit-value practice and separate independent from supported responses.

Decimal Place Value Visual Model Builder

Decompose a preserved decimal string into signed place-value contributions and compare learner digit claims.

Differentiated Lesson Path Planner

Plan flexible access, core, and extension paths around one shared learning goal without assigning fixed labels to learners.

Digital Citizenship Lesson Planner

Create an age-bounded digital citizenship lesson with realistic scenarios, decision prompts, risk checks, and trusted help routes.

Dilution Investigation Concept Diagnostic

Calculate final concentration and audit value and direction claims.

Dimensional Consistency Data Interpretation Workbench

Compare mass-length-time exponent vectors with a target physical dimension and learner consistency claims.

Dimensional Consistency Investigation Planner

Compare candidate physics terms with a target mass-length-time-temperature exponent vector and expose mismatches.

Electron Configuration Concept Diagnostic

Check neutral ground-state electron configurations through krypton with orbital evidence and chromium and copper exceptions.

Electron Configuration Evidence Analysis Workbench

Parse orbital occupancies and reconcile capacity and electron-count evidence with proton count and charge.

Empirical Formula Investigation Concept Diagnostic

Convert binary mass evidence to moles and compare learner subscripts with a bounded whole-number ratio.

Empirical Formula Investigation Evidence Analysis Workbench

Convert elemental masses to mole ratios and audit bounded empirical formulas.