Idea 21of 22Builds onA conclusion the data supports
Test an idea with data
What should you do when the data disagrees with what you thought?
Today you'll discover
- how to check an idea against a graph
- what to do when the data disagrees
- how to say so clearly
Think firstMany people think most kids get driven to school
What does this graph say about that idea?
Decide first, then press Next. Say what you expected, then check the bars.
A bar graph of how students in Rooms 12, 14 and 16 get to school: Walk 28, Bus 25, Car 19. Then the same survey as stacked bars, one for each room, the dotted car part never the biggest. The last step shows favourite sports stacked by grade: Soccer 15, Basketball 14, Hockey 12.
See the whole ideathe big idea and the key word, in one place
The big idea
Data can test an idea you already have, and sometimes shows the idea is wrong.
Easy to get wrongOne busy morning is not data. Count first, then decide whether your idea holds up.
Saying it well“I thought most of us came by car, but the survey shows only 19 of 72 do.”
Key word
- assumption
- an idea you believe before checking it with data
Ready to use it?
- Check an idea against a graph.
- Say what the data shows when it disagrees with you.