Key Stage 2

Mathematics

A structured concept map ready for diagnostics, adaptive lessons and mastery evidence.

core Starter concept map 8 starter concepts clear, practical and confidence-building

Curriculum trust boundary

Starter-map content needs expert review before production trust

Lessons can be explored for MVP coverage and learner-model behaviour, but concepts marked pending, needs revision or blocked must not be treated as fully trusted instruction.

Open review queue

Concept map

Teach, check, adapt

1. Place value and rounding

Build secure Key Stage 2 understanding of place value and rounding in Mathematics.

A common misconception is treating place value and rounding in Mathematics as a memorised label instead of a usable idea with evidence.

Validation: Generated starter-map content for MVP breadth. It is structurally complete but still requires subject-expert review before production claims.

Starter concept map Pending expert review Prerequisite: Core vocabulary for place value and rounding Extension: Extend toward written and mental calculation once place value and rounding is transferable.

Stage progression

Repair foundation: Key Stage 1 Mathematics - Repair foundations in Key Stage 1 Mathematics if place value and rounding is blocked by earlier knowledge.

Later outcome: Key Stage 3 Mathematics - Stretch place value and rounding toward Key Stage 3 Mathematics once evidence is transferable.

Representative problem: Complete one short Mathematics task using place value and rounding and explain one step.

Mastery signal: Explains place value and rounding in their own words

Factual recall Procedural fluency Conceptual explanation Application Transfer Error correction Teach-back Confidence calibration
starter_map expert_review_required rubric_generated
No learner evidence yet

2. Written and mental calculation

Build secure Key Stage 2 understanding of written and mental calculation in Mathematics.

A common misconception is treating written and mental calculation in Mathematics as a memorised label instead of a usable idea with evidence.

Validation: Generated starter-map content for MVP breadth. It is structurally complete but still requires subject-expert review before production claims.

Starter concept map Pending expert review Prerequisite: Secure or revisit place value and rounding Extension: Extend toward fractions decimals and percentages once written and mental calculation is transferable.

Stage progression

Repair foundation: Key Stage 1 Mathematics - Repair foundations in Key Stage 1 Mathematics if written and mental calculation is blocked by earlier knowledge.

Later outcome: Key Stage 3 Mathematics - Stretch written and mental calculation toward Key Stage 3 Mathematics once evidence is transferable.

Representative problem: Complete one short Mathematics task using written and mental calculation and explain one step.

Mastery signal: Explains written and mental calculation in their own words

Factual recall Procedural fluency Conceptual explanation Application Transfer Error correction Teach-back Confidence calibration
starter_map expert_review_required rubric_generated
No learner evidence yet

3. Fractions decimals and percentages

Build secure Key Stage 2 understanding of fractions decimals and percentages in Mathematics.

A common misconception is treating fractions decimals and percentages in Mathematics as a memorised label instead of a usable idea with evidence.

Validation: Generated starter-map content for MVP breadth. It is structurally complete but still requires subject-expert review before production claims.

Starter concept map Pending expert review Prerequisite: Secure or revisit written and mental calculation Extension: Extend toward multiplication division and factors once fractions decimals and percentages is transferable.

Stage progression

Repair foundation: Key Stage 1 Mathematics - Repair foundations in Key Stage 1 Mathematics if fractions decimals and percentages is blocked by earlier knowledge.

Later outcome: Key Stage 3 Mathematics - Stretch fractions decimals and percentages toward Key Stage 3 Mathematics once evidence is transferable.

Representative problem: Complete one short Mathematics task using fractions decimals and percentages and explain one step.

Mastery signal: Explains fractions decimals and percentages in their own words

Factual recall Procedural fluency Conceptual explanation Application Transfer Error correction Teach-back Confidence calibration
starter_map expert_review_required rubric_generated
No learner evidence yet

4. Multiplication division and factors

Build secure Key Stage 2 understanding of multiplication division and factors in Mathematics.

A common misconception is treating multiplication division and factors in Mathematics as a memorised label instead of a usable idea with evidence.

Validation: Generated starter-map content for MVP breadth. It is structurally complete but still requires subject-expert review before production claims.

Starter concept map Pending expert review Prerequisite: Secure or revisit fractions decimals and percentages Extension: Extend toward ratio scale and proportion once multiplication division and factors is transferable.

Stage progression

Repair foundation: Key Stage 1 Mathematics - Repair foundations in Key Stage 1 Mathematics if multiplication division and factors is blocked by earlier knowledge.

Later outcome: Key Stage 3 Mathematics - Stretch multiplication division and factors toward Key Stage 3 Mathematics once evidence is transferable.

Representative problem: Complete one short Mathematics task using multiplication division and factors and explain one step.

Mastery signal: Explains multiplication division and factors in their own words

Factual recall Procedural fluency Conceptual explanation Application Transfer Error correction Teach-back Confidence calibration
starter_map expert_review_required rubric_generated
No learner evidence yet

5. Ratio scale and proportion

Build secure Key Stage 2 understanding of ratio scale and proportion in Mathematics.

A common misconception is treating ratio scale and proportion in Mathematics as a memorised label instead of a usable idea with evidence.

Validation: Generated starter-map content for MVP breadth. It is structurally complete but still requires subject-expert review before production claims.

Starter concept map Pending expert review Prerequisite: Secure or revisit multiplication division and factors Extension: Extend toward geometry position and measure once ratio scale and proportion is transferable.

Stage progression

Repair foundation: Key Stage 1 Mathematics - Repair foundations in Key Stage 1 Mathematics if ratio scale and proportion is blocked by earlier knowledge.

Later outcome: Key Stage 3 Mathematics - Stretch ratio scale and proportion toward Key Stage 3 Mathematics once evidence is transferable.

Representative problem: Complete one short Mathematics task using ratio scale and proportion and explain one step.

Mastery signal: Explains ratio scale and proportion in their own words

Factual recall Procedural fluency Conceptual explanation Application Transfer Error correction Teach-back Confidence calibration
starter_map expert_review_required rubric_generated
No learner evidence yet

6. Geometry position and measure

Build secure Key Stage 2 understanding of geometry position and measure in Mathematics.

A common misconception is treating geometry position and measure in Mathematics as a memorised label instead of a usable idea with evidence.

Validation: Generated starter-map content for MVP breadth. It is structurally complete but still requires subject-expert review before production claims.

Starter concept map Pending expert review Prerequisite: Secure or revisit ratio scale and proportion Extension: Extend toward statistics and interpretation once geometry position and measure is transferable.

Stage progression

Repair foundation: Key Stage 1 Mathematics - Repair foundations in Key Stage 1 Mathematics if geometry position and measure is blocked by earlier knowledge.

Later outcome: Key Stage 3 Mathematics - Stretch geometry position and measure toward Key Stage 3 Mathematics once evidence is transferable.

Representative problem: Complete one short Mathematics task using geometry position and measure and explain one step.

Mastery signal: Explains geometry position and measure in their own words

Factual recall Procedural fluency Conceptual explanation Application Transfer Error correction Teach-back Confidence calibration
starter_map expert_review_required rubric_generated
No learner evidence yet

7. Statistics and interpretation

Build secure Key Stage 2 understanding of statistics and interpretation in Mathematics.

A common misconception is treating statistics and interpretation in Mathematics as a memorised label instead of a usable idea with evidence.

Validation: Generated starter-map content for MVP breadth. It is structurally complete but still requires subject-expert review before production claims.

Starter concept map Pending expert review Prerequisite: Secure or revisit geometry position and measure Extension: Extend toward multi-step reasoning once statistics and interpretation is transferable.

Stage progression

Repair foundation: Key Stage 1 Mathematics - Repair foundations in Key Stage 1 Mathematics if statistics and interpretation is blocked by earlier knowledge.

Later outcome: Key Stage 3 Mathematics - Stretch statistics and interpretation toward Key Stage 3 Mathematics once evidence is transferable.

Representative problem: Complete one short Mathematics task using statistics and interpretation and explain one step.

Mastery signal: Explains statistics and interpretation in their own words

Factual recall Procedural fluency Conceptual explanation Application Transfer Error correction Teach-back Confidence calibration
starter_map expert_review_required rubric_generated
No learner evidence yet

8. Multi-step reasoning

Build secure Key Stage 2 understanding of multi-step reasoning in Mathematics.

A common misconception is treating multi-step reasoning in Mathematics as a memorised label instead of a usable idea with evidence.

Validation: Generated starter-map content for MVP breadth. It is structurally complete but still requires subject-expert review before production claims.

Starter concept map Pending expert review Prerequisite: Secure or revisit statistics and interpretation Extension: Extend multi-step reasoning into a more complex Mathematics problem with less scaffolding.

Stage progression

Repair foundation: Key Stage 1 Mathematics - Repair foundations in Key Stage 1 Mathematics if multi-step reasoning is blocked by earlier knowledge.

Later outcome: Key Stage 3 Mathematics - Stretch multi-step reasoning toward Key Stage 3 Mathematics once evidence is transferable.

Representative problem: Complete one short Mathematics task using multi-step reasoning and explain one step.

Mastery signal: Explains multi-step reasoning in their own words

Factual recall Procedural fluency Conceptual explanation Application Transfer Error correction Teach-back Confidence calibration
starter_map expert_review_required rubric_generated
No learner evidence yet