Step 4 Objective
Present information and results in a clear and organised way. Present solutions/findings in the context of the problem/task.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
What if pupils find this a barrier?
Line Crossings
- Draw three straight lines (line segments) so that some cross over each other.
- How many crossings are there?
- Try different arrangements of the lines. What is the maximum number of possible crossings?
- Try using more lines.
- Is there a rule for the maximum for any number of lines? If so, write it down.
Use the problem Line Crossings.
You have drawn different patterns, using three (or four) lines. It gets more complicated when you use even more lines.
- Draw different diagrams for five (or six) lines. Start with those where there are only a few crossings (intersections).
- How can you show that your work is organised?