VO: It’s wash day at panto house. Looks like Buttons has been doing the Ugly Sisters’ washing for them. Large soggy undies. Ooh, poor Buttons. Angular and Graphica are too busy watching Mastercook to help.
Time for Buttons to peg out the washing to dry. Going well so far.
Oops. Looks like that line might break, what are you going to do now? Maximum weight two thousand grams. That means there’s a limit to how much you can hang up. And some scales. The scales are there to weigh the washing Buttons. So you’ll have to weigh some bloomers.
VO: Let's see how heavy the Ugly Sisters' undies are. Each bloomer weighs 250 grams. How many bloomers have you got? 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.
Ten Bloomers. Oh and what’s that at the bottom? Urg, it’s the Ugly Sisters’ extra thick tights to stop the leg hairs from peeping out.
You’ll have to weigh those too. Those tights are heavy, they weigh 315 grams.
VO: The line only takes two thousand grams, I don’t think you can hang everything up. Oh dear, looks like Buttons is a bit stuck. Let's see if we can help him put the washing out.
The line can take 2000 grams.
Each bloomer weighs 250 grams.
Work out the maximum number of bloomers the line can take.
The 10 bloomers each weigh 250 grams. The tights weigh 315 grams. How much does the washing weigh altogether?
If the tights go on the line first, how many bloomers can be added before the line breaks?
Video summary
At the Panto House, Buttons is washing the Ugly Sisters' bloomers.
He hangs out the washing to dry and notices that the line takes a maximum weight of 2000g.
He must weigh each pair of knickers. He uses scales and finds they each weigh 250g.
He counts 10 pairs of bloomers. Now he must work out if he can hang up the bloomers and the 315g tights without the line breaking.
Three questions of increasing difficulty help to structure the solution and set related weight problems.
This is from the series: Let's Do Maths
Teacher Notes
This could be used for solving problems which require conversions between grams and kilograms.
Pupils could be given opportunities to estimate and weigh real objects and use scales.
As part of a unit of work on weight and measures, extensions can include identifying missing numbers and points on a scale and finding fractions of measures.
This clip will be relevant for teaching Maths at KS2 in England and Wales, Early and First Level, Second Level in Scotland and KS1 and KS2 in Northern Ireland.
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