Each prompt uses invented numbers/context. Use one after a lesson or for a home extension; students can always do it on paper. They should show an exact expression and a short check or reason. Worked staff answers are separate and public. No personal data, real workplace measurements or purchase is needed.
Day 1 · Classification
- Book-display squares: areas 25 and 7 square units. Evaluate
sqrt(25)and classifysqrt(7); bound the latter between whole numbers. - Poster panels: areas 49 and 15 square units. Which side is an exact whole number? Between which integers is the other?
Day 2 · Factor transfer
- Mosaic draft: simplify
sqrt(108)units using its largest square factor; square your result. - Fictional screen tile: simplify
sqrt(200)units and check the result by squaring.
Day 3 · Comparison
- Paper-track marks: compare
sqrt(18)andsqrt(72)cm; give the exact difference. - Gallery-cord samples: compare
sqrt(27)andsqrt(75)cm; give the exact difference.
Day 4 · Addition
- Kite-frame segments: add
sqrt(20)+sqrt(45)cm exactly; reject a radicand-addition shortcut. - Fictional map strips: add
sqrt(28)+sqrt(63)units exactly, showing common root parts.
Day 5 · Subtraction
- Prop-ribbon samples: compute
sqrt(75)-sqrt(27)cm exactly; check the sign. - Paper-lantern strips: compute
sqrt(125)-sqrt(20)cm exactly; explain the shared root.
Day 6 · Products
- Rectangle sketch: sides
sqrt(8)cm andsqrt(18)cm; find exact area with units. - Symbolic animation scale: simplify
(3sqrt(2))(2sqrt(10)); keep the whole-number coefficients visible.
Day 7 · Rationalising
- Pure design ratio: rationalise
5/sqrt(3)without changing its value. - Another pure ratio: rationalise
6/sqrt(7)and give a quick decimal equivalence check.
Day 8 · Multi-step audit
- Cue index: simplify
(sqrt(50)+sqrt(8))/sqrt(2)by two routes. - Route index: simplify
(sqrt(75)-sqrt(12))/sqrt(3)and locate the like terms.
Day 9 · Vertex form
- Abstract plotting card: for
y=(x+1)^2+2, find turning point, axis, y-intercept and number of real x-intercepts. - Digital-art plotting card: for
y=2(x-1)^2+3, find the same four features and show one mirrored x pair.
Day 10 · Factor form
- Fictional graph A:
y=(x-2)(x-6). Find both zeros, axis, turning point and y-intercept. - Fictional graph B:
y=-(x+2)(x-4). Find the same features and opening direction. Give one sign check between the zeros.