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MathsYear 1Autumn Block 2 (Addition and Subtraction)11 How Many Left › How Many Left 1 Year 1 Addition and Subtraction Learning Video Clip

# How Many Left 1 Year 1 Addition and Subtraction Learning Video Clip

## Step 11: How Many Left 1 Year 1 Addition and Subtraction Learning Video Clip

Dot the dinosaur and her friend Stan are happy to be back home again. It’s a very hot day so they go down to the river to splash in the water. Help Dot and Stan to work out how many different things are left in this adventure.

More resources for Autumn Block 2 Step 11.

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Discussion points for teachers

1. Help Dot and Stan work out how many fish there are now.
Discuss how many fish there were at the start. Discuss how many fish Stan scared away. Discuss how to work out how many fish are left in the river now.
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2. How many bushes could be left? Discuss how many bushes there were to begin with.
Discuss how many bushes were blown away. Discuss how to work out how many bushes could be left now. This question is open-ended for the children to explore.
Three possible answers: 3, 4 or 5

3. Help Dot and Stan work out how many dinosaur eggs are left.
Discuss how many eggs Dot’s mum had in the nest. Discuss how many were broken. Discuss how to work out how many dinosaur eggs are still left in the nest. Discuss what you notice about the answer.
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4. How many dragonflies are left?
Discuss how many dragonflies there were to start with. Discuss how many flew away. Discuss how many more flew away. Discuss how to work out how many dragonflies are left after both sets of dragonflies have flown away.
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National Curriculum Objectives

Mathematics Year 1: (1N1a) Count to and across 100, forwards and backwards, beginning with 0 or 1, or from any given number

Mathematics Year 1: (1C2a) Add and subtract one-digit and two-digit numbers to 20, including zero

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