Did you know that the Vikings were one of the first groups of people to invent the sun compass? Where would we be (literally) without inventing a way to navigate the globe?
This week, we have combined our statistics in maths and our Time Travel – Inventions learning to create a sun compass of our own. Hopefully we find out which way is North in the process!
We started by drawing a 9 x 2 table to record time and shadow length.
(We practised some measuring skills at the same time.)
At set intervals throughout the day – as long as the sun was playing ball – we went outside to create our sun compass.
First, we held a metre ruler perpendicularly to the floor to create a shadow. Using tape measures, we found out how long the shadow was and placed an ‘x’ in chalk at its tip.
As you can see from our tables, it was 333cm at 10am- much longer than we predicted!
Challenge your child! True or false? Explain why:
- The shadow was longest at 2pm
- The shadow was shortest at 11:30
- The shadow was 147cm at 10:30
After some intervals, we made predictions about the length of the shadow with varying degrees of success:
By the end of the day, we had made lots of chalk marks on the floor. By drawing a line from our starting point to the closest section of the curve, we have found North!
