88.EE 77.EE 66.RP f(x) x > 0 x5 2x+3 3.2×108 multiply 4 : 1 : 5 ×2 50%½0.5 % 180° V=l·w·h σ PDF + 115 XP a²+b²=c²
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Mrs. Ali's Classroom.

Interactive middle school math. Built by a real classroom teacher. No ads, no signups, no data collection — just tools.

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y=mx+b
π r²
∠ABC
Δy/Δx
// try before you explore

Play with real math — right here.

Three tiny demos. No signup. Get a feel for the tools.

🍕🍕🧀
2 slices · 1 cheese

Keep the Ratio

Slide to scale the pizza — cheese always keeps up.

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60° 60° 60° sum = 180°

Triangle Angle Sum

Three angles always add to 180°. Always.

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Graph a Line

Watch y = mx + b come alive.

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