Teacher login →NextBridge AI Lab · Grade 3

Grid Treasure Hunt

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Teacher steps

  1. Show the grid: 🤖 must reach 💎. Grey squares are walls.
  2. Children press arrows to write the steps.
  3. Press Run and watch the robot.
  4. If it bumps, find the wrong step and fix it (debug).
  5. Try the next level. Can you use fewer steps?

Time: 35 min · Maps to: CBSE Computational Thinking, Class 3 (patterns, steps, grids)

Activity

Keyboard: arrow keys add steps, Enter runs.

Levels

  1. Try it: solve Level 1.
  2. Train it: solve Level 2 in the fewest steps.
  3. Break it & fix it: add a wrong arrow on purpose. Let a partner find the bug.

Badges:

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How AI works

  1. A program is a list of exact steps.
  2. Computers follow steps exactly, even wrong ones.
  3. Debugging means finding and fixing the wrong step.

What we learned: A program is a list of exact steps. Debugging means finding and fixing the wrong step.

Aligned with AI4K12 Big Idea 3: Learning (step-by-step reasoning); mapped to CBSE Computational Thinking, Class 3 (patterns, steps, grids).

Teacher guide

Goal: A program is a list of exact steps. Time: 35 min. CBSE unit: CBSE Computational Thinking, Class 3 (patterns, steps, grids).

Discussion questions

  1. What happened when a step was wrong?
  2. Is there more than one right answer?
  3. Where do we follow steps in daily life?

Exit quiz

  1. What do we call fixing a wrong step?
  2. Write → → → in a short way.
  3. Do computers guess what you mean? (yes/no)

Answers

  1. What do we call fixing a wrong step? Debugging
  2. Write → → → in a short way. 3 × →
  3. Do computers guess what you mean? (yes/no) no

Safety: Teacher-led. Use only the teacher's device. Camera is off until the teacher turns it on. Do not show children's faces; use objects. No student personal data. No class codes, dashboards or galleries are used.

Class certificate

Type a first name. The certificate is made on this device and is not saved or sent.

← AI Lab AI practicals

Aligned with NEP 2020 and mapped to CBSE’s Computational Thinking & AI curriculum (Classes 3–8). Big Ideas follow the AI4K12 framework. NextBridge is independent and not affiliated with CBSE or AI4K12.

NextBridge AI Lab · Grade 3 · Grid Treasure Hunt — Worksheet

Name: ______________ Class: ____ Date: ______

  1. Draw a 5×5 grid. Mark start S and treasure T.
  2. Write arrow steps from S to T.
  3. Circle a step you had to fix.

Exit quiz:

  1. What do we call fixing a wrong step?
  2. Write → → → in a short way.
  3. Do computers guess what you mean? (yes/no)

Teacher answer key · Grid Treasure Hunt

  1. Any grid with S and T.
  2. Any correct sequence; check by acting it out.
  3. Any fixed step; ask the child to explain.

Exit quiz:

  1. What do we call fixing a wrong step? Debugging
  2. Write → → → in a short way. 3 × →
  3. Do computers guess what you mean? (yes/no) no

Maps to: CBSE Computational Thinking, Class 3 (patterns, steps, grids)

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