Consolidation of Step 4-6 Year 1 Addition and Subtraction Learning Video Clip

Subtraction - Crossing 10 2 Year 1 Addition and Subtraction Learning Video Clip

Step 4-6: Consolidation of Step 4-6 Year 1 Addition and Subtraction Learning Video Clip

We catch up with Kev the trainee knight as he continues his training at Kingshill Castle. This time he meets Princess Petronella and Darren the Dragon where Kev has to subtract within 10 and crossing 10. Kev then has to work out how many candles will be left in the box by counting and crossing 10 and then finally, Kev is allowed to take part in some knightly activities by taking part in a fencing match with Sir Bruno, but for every touch of Kev’s armour, he loses a point, how many points will he lose?

This Learning Video Clip has been designed as a consolidation tool for steps 4, 5 and 6. 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.

More resources for Spring Block 1.

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Discussion points for teachers

1. Do you agree with Kev?
Discuss the different ways you could work out the answer. Discuss using a bar model or number line and which might work better.
Kev is correct. 20 – 9 = 11

2. There were 8 dragons left. Do you agree with Kev?
Discuss the calculation that Kev has shown. Discuss the movement on the number line and practise the calculation using part-whole models or tens frames.
Kev is correct. 13 – 5 = 8

3. Kev writes down how many candles are left. Do you agree?
Discuss the calculation that Kev has written. Discuss the ways the problem can be solved. Discuss how many candles will be left.
Kev is incorrect. 15 – 9 = 6.

4. How many points does Kev have now?
Discuss the number of pings heard. Discuss the calculation and how many points Kev has now lost.
He loses 12 points. Kev now has 8 points.

5. Solve the clues to work out which label belongs to the correct box. Which box has the most banners?
Discuss the clues and work out how many banners there are in each box.
Box A = 14, Box B = 13, Box C = 17. Box C has the most.

National Curriculum Objectives

Mathematics Year 1: (1C2a) Add and subtract one-digit and two-digit numbers to 20, including zero
Mathematics Year 1: (1C4) Solve one-step problems that involve addition and subtraction, using concrete objects and pictorial representations, and missing number problems such as 7=_________ 9
Mathematics Year 1: (1C1) Represent and use number bonds and related subtraction facts within 20

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