Wednesday, March 29, 2017

Investigating Area - Proving ourselves right!

This term, we have been investigating measurement as part of our maths learning.  Earlier in the term we created paper planes and had a competition measuring the length that these could fly.  Over the past two weeks we have again combined our knowledge of flight and flying things to investigate another measurement concept, Area.

Firstly, we identified what we think area is. Our class definition is that 'area is how much it takes to cover something, or how much space to cover something".  Mr Riceman set up an investigation for us to measure how different areas can make different things happen.

We created plastic bag parachutes by recycling old materials. Any leftovers we disposed of responsibly using our soft plastics bin.  Our challenge was to make three parachutes, each with a different area.  We used a you-tube video to get a general idea about how we could build these.  Then, came our chance to create.  While creating, Mr Riceman introduced us to the concepts of variables and scientific testing.  We talked about testing one variable which was the area of the parachute.  To do this we had to keep all the other variables on the parachute as close to the same as we could (e.g. length of string, weight of teddy...)

Once we had made these we then had to test them out fairly. Our hypothesis (what we think will happen) was that a parachute with a larger area would take longer to get to the ground. This is because there is more area in the parachute to catch wind and slow it down.  We did at least three drops of each parachute from the same height and recorded how long it took for these to land.  Here are some videos of the testing phase.

Most of us proved our hypothesis correctly, the larger the area of the parachute, the longer it takes the teddy to land.  It was so much fun putting our ideas about area into real experiments and making something to prove what we thought.  Have you ever experimented with something like this?  We would love your feedback and to hear about any connections you might have to our learning.

1 comment:

  1. Hi Room 8 I'm Alex from Room 9 I like your parachutes. I hope you enjoyed making them. How did you make the parachutes ?