Maths filler

Imagine different shaped vessels being filled. Can you work out what the graphs of the water level should look like?

Exploring and noticing Working systematically Conjecturing and generalising Visualising and representing Reasoning, convincing and proving
Being curious Being resourceful Being resilient Being collaborative

Maths Filler printable sheet



A series of vessels of uniform cross section look like letters when viewed face-on. They are 1cm thick, and the corners of the vessels have either whole or half cm values for their coordinates.

 

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Maths filler



Water is poured slowly into each vessel through one of the holes at the top at a rate of 1 cm$^3$ per minute.

Seven of these vessels take the same time to fill up. Which are they?

Which one takes the longest to fill?

Which would fill up first?

The height of the pool of water in one of the vessels is measured and a chart of the height against time is plotted, as follows:

 

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Maths filler



Which vessel does this chart correspond to?

Can you explain what each part of the chart corresponds to?

Can you make charts of height against time for some of the other letters?