Goal: independently locate, move and explain points including an axis endpoint. Materials: still-sealed Cards 15–16, assessment, grid.
- Notice, 3: Sort point cards (3,0), (0,-3), (-2,2), (2,-2) as axis or quadrant. Keys: first x-axis, second y-axis, third II, fourth IV.
- Model, 5: Teacher checks a wrong route from (1,-1) up 2 claimed (1,-3). “Up increases y from -1 to +1; x stays 1.” Model error check with labelled axes, not transfer cards.
- Together, 8: Plot (3,-2) and (-3,2), explain what a half-turn about origin would do if school scope allows; core check is coordinates and opposite signs. Do not score transformation knowledge here.
- Try, 6: Learner selects unseen Card 15 or 16, plots start and follows moves. Keys: Card15 (-1,-2) right3/up2 → (2,0) on x-axis; Card16 (0,4) left2/down6 → (-2,-2), Quadrant III. Record card/support, do not reveal key first.
- Check, 3: Independently give (0,4) and ask move down 5 then right 3. Key: (3,-1), Quadrant IV. Use the full formative check plus daily records for next teaching; one correct route is not Year 6 mastery.
Shared misconception response
If -8 is treated as larger than -3, move equal-spaced markers to compare position. If a child swaps (x,y), say “x across first”, trace one coordinate at a time and contrast (1,4)/(4,1). If a child assigns an axis point to a quadrant, mark the boundary physically. After each model give a new analogous problem and note whether the explanation was independent. Negative contexts are mathematical references, not assumptions about a learner's finances, mood or ability.
Original lessons © NeuroForgeIO Pty Ltd 2026, CC BY 4.0. National source and ACARA's separate rights in README. Educator review pending.