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TeacherColab · Free Student Worksheet
Decomposition: Clue Riddles, 3-D Parts & Step Exchanges
Student Name
Date
Learning Objective
Break down complex problems with 2–3 clues: number riddles, 3-D parts (faces, edges, corners), step-by-step money/digit transfers, and multi-column tables.
Section 1 — What do you already know?
Before we begin, write down anything you already know about: Multi-Clue Decomposition & Tables
Section 2 — Key Concepts
1. What is decomposition in Class 3 computational thinking?
Answer:
Decomposition means taking a big, tricky problem with several clues and breaking it down into small, simple steps so you can solve them one at a time.
2. How do you solve a problem with 2–3 number clues?
Answer:
Start with the most restrictive clue to narrow down possibilities. For example, if Clue 1 says 'I am between 20 and 30' and Clue 2 says 'I am an odd number ending with 5', you immediately know the answer is 25!
3. How do 3-D object parts help with decomposition?
Answer:
Any 3-D solid can be decomposed into: flat/curved faces, straight/curved edges, and sharp corners (vertices). For example, a cube has 6 square faces, 12 equal edges, and 8 corners.
Section 3 — Check Your Understanding
Answer the following questions in your own words.
1. Break down multi-clue number riddles by testing each clue systematically one by one
2. Deconstruct 3-D objects into their component parts: faces, edges, and corners (vertices)
3. Track step-by-step item, money, and digit exchanges across consecutive transfers
4. Extract, combine, and compare multiple data points from tables and charts to solve problems
Section 4 — Fill in the Blanks
Complete the sentences using the concepts you have learned.
1. Multi-Clue Decomposition & Tables helps computers _________________ patterns from _________________.
2. The main difference between AI and a normal program is that AI _________________ from data rather than following fixed _________________.
3. One real-world example of Multi-Clue Decomposition & Tables is _________________, which uses it to _________________.
4. The inputs used by an AI model are called _________________ and the output it predicts is called a _________________.
Section 5 — Scenario Thinking
🤔 Think about this:
A healthcare organisation wants to use Multi-Clue Decomposition & Tables to assist doctors in diagnosing patients earlier. What data would the AI need? What challenges could arise? How can the team ensure the AI is fair, safe, and accurate?
Section 6 — What Did I Learn?
✅ Three key ideas I now understand:
❓ One question I still have:
⭐ Challenge Task
If you were designing an AI solution using Multi-Clue Decomposition & Tables, what problem would you solve? Outline a 3-step plan: (1) Problem statement, (2) Data to collect, (3) How to verify accuracy.