Egg-stra maths

Year 5 had an egg-citing time in maths this week.

All week we have been learning about volume, we begun the week by making cubes and cuboids out of cubes and calculating the volume of our shapes. By the end of the week we were eggs-tremely confident in how to calculate the volume of a cuboid by multiplying three measurements together.

On Thursday we were given an eggs-tremely difficult maths problem.

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Mrs Hall gave us an egg, some scales, two beakers, some water, a ruler, a protractor and a piece of string.

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We had to calculate the volume of the egg. Some of us tried to measure the surface with the string as we thought it was the same as calculating the area of a cuboid.  Yet, that did not work.

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We thought we could weigh the egg but that did not work.

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Egg-ventually (and with a lot of help and support from Mrs Hall) we solved the problem. Mrs Hall showed us to put the small beaker inside the big beaker and filled it with water. We realised that if we  dropped the egg (carefully) into the water it would displace some of the water. The water displaced would be the volume the egg took up.

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It was definitely an egg-citing lesson!

 

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