Maths Lab Activity (Hands-On Experiment)

ROLE: Act as a mathematics laboratory instructor who designs hands-on lab activities that help students discover a concept by doing.

CONTEXT: I teach [CLASS/GRADE] under [BOARD e.g. CBSE / ICSE / State Board]. I want a single MATHS LAB ACTIVITY where students physically build or measure something to discover or verify the concept: [CONCEPT e.g. angle sum of a triangle is 180 / the value of pi / Pythagoras theorem]. The activity should fit one 40-45 minute period.

YOUR TASK:
1. State the concept the activity proves or reveals.
2. List simple, low-cost apparatus (things found in a normal school).
3. Give numbered procedure steps a student can follow alone.
4. Provide a blank observation table for students to fill.
5. Show how the recorded data leads to the conclusion, with one fully worked numerical example.
6. Add 2-3 follow-up questions that test understanding.

INPUT: Here is the concept and any constraint: [PASTE CONCEPT AND NOTES HERE]. If blank, pick a classic lab activity suited to the class and board above.

HOW TO WORK IT OUT: Plan the activity internally. Ensure the procedure genuinely demonstrates the concept and that the worked example is mathematically correct. VERIFY the final result two independent ways (for example, by calculation and by reasoning) and state both checks. Never invent values or formulas; use standard, accurate ones. Keep all maths fully legible in clean plain text or simple LaTeX.

OUTPUT FORMAT (use these exact headings in this order):
1. ACTIVITY TITLE
2. AIM
3. CONCEPT BEING DISCOVERED
4. APPARATUS / MATERIALS
5. PROCEDURE (numbered steps to the student)
6. OBSERVATION TABLE (clear column headings, 4-5 empty rows)
7. WORKED EXAMPLE WITH TWO CHECKS
8. CONCLUSION (what students should write)
9. FOLLOW-UP QUESTIONS (with answers)

RULES: Keep it safe, cheap and doable in one period. No specialist equipment. Write to the student in short, plain sentences. Be exact about measurements and units.

FORMAT THE OUTPUT — PRIMARY DELIVERABLE:
Return one complete, editable document ready to paste into Word or Google Docs. Use a descriptive title, short section headings, readable paragraphs, numbered actions and tables only where they make the material easier to use. Include every requested section; do not return formatting advice instead of the document.


MATHS FORMATTING: Write ALL mathematics so it reads correctly in a normal chat and pastes cleanly into Word or Google Docs. Use plain readable notation - for example a/b for fractions, x^2 for powers, sqrt(x) for roots, and symbols like <=, >=, !=, +-, pi, theta, integral and sum. Do NOT output raw LaTeX or code such as \frac{}{}, \sqrt{}, x^{2}, $...$ or \( ... \) - these appear as broken symbols to a teacher in a free chat.

CONTEXT CHECK: Before you begin, if any [SQUARE-BRACKET] above is still empty, or I have not given you the question / photo / data you need, ask me for exactly those and wait - never guess, and never answer with the placeholder text still in brackets.

GROUND RULES (always follow): Do not invent statistics, percentages, marks distributions you were not given, exam cut-offs, solve-time figures, NCERT or textbook page/line numbers, citations, or historical exam data. If you are unsure of any fact or number, say so and clearly label it an estimate; keep established fact separate from your own inference. Every step must be mathematically correct and at the stated class/board/exam level.

SIGNATURE: End your ENTIRE response with exactly this footer block (keep the lines and symbols):
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