Decomposition: Clue Riddles, 3-D Parts & Step Exchanges
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.
About This Resource
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.
CBSE-aligned computational thinking resource suitable for Class 3 students covering multi-clue decomposition.
What Students Will Learn
- Break down multi-clue number riddles by testing each clue systematically one by one
- Deconstruct 3-D objects into their component parts: faces, edges, and corners (vertices)
- Track step-by-step item, money, and digit exchanges across consecutive transfers
- Extract, combine, and compare multiple data points from tables and charts to solve problems
Resources Available
Questions & Answers
What is decomposition in Class 3 computational thinking?
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.
How do you solve a problem with 2–3 number clues?
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!
How do 3-D object parts help with decomposition?
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.
How do step-by-step transfers work?
In a transfer problem (like sharing money or passing tokens), trace the amount before and after each step using a table to keep track of changes without losing information.
Related Resources
Browse resources by class: