Why show links?
A list of facts is like a heap of bricks. A diagram or chart builds a wall. When you see how facts link, you remember them and use them to think.
A graphic organiser is a drawing with a fixed shape that helps you place facts. It is also called a thinking tool.
Diagrams: chain and map
- Chain (flow) diagram: boxes joined by arrows. Use it for order (first, next, last) or cause and effect.
- Concept map or tree: a big idea on top, parts below, lines joining them. Use it for parts of a whole or kinds of one thing.
Keep words short. Put one fact in each box. Make every arrow mean "leads to" or "is a part of".
Tables and graphic organisers
- Table: rows for things, columns for features. Use it to compare. Numbers in a table can be drawn as bars in a chart.
- Venn diagram: two (or three) circles. Put what is only in one in its own part, and what is shared in the overlap. Use it for same and different.
Picking the right one
Ask: what is the link? Order or cause, use a chain. Compare, use a table. Same and different, use a Venn. Parts of a whole, use a map.
Try it
Take four facts from a lesson you read today. Write them on small slips of paper. First try them as a chain, then as a table. Which one explains the facts better? Show a friend and ask whether they can read your diagram without help.
Key formulas and definitions
- Order or cause = chain diagram with arrows
- Compare = table (rows and columns)
- Same and different = Venn diagram
- Parts of a whole = concept map or tree
- One fact per box; every arrow has a meaning
Worked examples
1. Which organiser shows how a seed becomes a plant: seed, shoot, leaves, flower?
A chain diagram, because the facts are in order.
2. You want to compare three phones by price and battery. Which tool?
A table: phones as rows, price and battery as columns.
3. Which tool shows what Class A and Class B both like and what only one likes?
A Venn diagram. The overlap holds what both like.
Common mistakes
- Choosing a table when the facts are in time order.
- Putting many words in one box so nothing is clear.
- Using arrows with no meaning.
- Forgetting to label the circles or the columns.