Consolidation of Steps 4-5 Year 5 Multiplication and Division Learning Video Clip

Consolidation of Steps 4-5 Year 1 Multiplication and Division Learning Video Clip

Step 4-5: Consolidation of Steps 4-5 Year 5 Multiplication and Division Learning Video Clip

Selene and Orion have helped to rescue the Queen and are now returning home to Sparta to help train the warriors. Children will help them to calculate how many warriors can go onboard the ship home. They will help the warriors to calculate how much water will be needed for the journey, and then support Selene and Orion to calculate how long it will take them to get home. As the Gods then send a storm in revenge, they will help the warriors to work out how many buckets of water they can pour from the deck back into the sea before they make it home.

This Learning Video Clip has been designed as a consolidation tool for steps 4 and 5. It contains content relevant to all these steps and can be used in parts to recap a particular step or in on its own at the end of a teaching sequence for the included steps.

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Discussion points for teachers

1. Help Selene and Orion work out the maximum numbers of warriors they can take.
Discuss how to use trial and error to create 3-digit by 2-digit multiplications where the total does not go over 16,000.
The maximum he can take is 168 warriors. 168 x 95 = 15,960kg.

2. Help the warriors to load the correct amount of water.
Use formal multiplication method to calculate. Discuss what happens when there is an exchange.
168 x 25 = 4,200 litres

3. How far could they travel in 79 days?
Discuss how the method now changes as we have 4 digits to calculate by 2 digits. This question is open-ended for the children to explore.
Various answers for example: 8,046 x 79 = 635,634 metres

4. How many buckets of water can they remove over the final part of their journey?
Continue to discuss the formal multiplication method including the use of zero as a place holder and exchanges.
9,565 x 28 = 267,820 buckets

National Curriculum Objectives

Mathematics Year 5: (5C6a) Multiply and divide numbers mentally drawing upon known facts

Mathematics Year 5: (5C7a) Multiply numbers up to 4 digits by a one- or two-digit number using a formal written method, including long multiplication for two-digit numbers

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