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7th Grade Math

What is the volume of this prism?

Trapezoidal prism diagram
cubic millimeters
Tri prism:
base = 40 - 32 = 8
V = ½ × 8 × 7 × 15 = 420
Rect prism:
V = 32 × 15 × 7 = 3360
Total = 420 + 3360 = 3780

🎓 Step-by-Step

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Step 1

Break the prism into two simpler sections.

8 7 15

Triangle

+
32 7 15

Rectangle

2

Current Step

Calculate the volume of each section.

Triangle V = ½ × base × height × depth
Rectangle V = length × width × depth

Step 3

Add the two volumes together to find the total.

✏️ Live Scratchpad

Students write their work on screen. Each step is automatically checked.

🎓 Step-by-Step Hints

Hints reveal one at a time — students must think before advancing.

✅ Instant Feedback

Immediate confirmation or a targeted correction — never just "wrong".

✏️

Write Directly on Screen

The scratchpad captures every step of a student's work — not just the final answer — so errors are caught at the exact line they happen.

💡

Hints That Teach, Not Tell

Each hint is a guided nudge — breaking the concept into a smaller idea — so students build real understanding rather than copying steps.

📊

Pinpoint Error Detection

Beside Math identifies exactly which calculation went wrong and why — giving actionable feedback instead of a generic "incorrect."

For Parents

When your student needs more help — you're already ready.

Live Sync Mode mirrors what your student sees in real time and gives you a private coaching guide — full context on the problem, suggested questions to ask, and the step-by-step solution path.

Student

SCRATCHPAD

Parent

Ask your student to break the shape first...

Real-time · Private guide · Zero spoilers

See Live Sync Mode