MathsYear 1Autumn Block 4 (Place Value)01 Count and Write Numbers to 20 › Free Count and Write Numbers to 20 Year 1 Place Value Learning Video Clip

Free Count and Write Numbers to 20 Year 1 Place Value Learning Video Clip

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Step 1: Free Count and Write Numbers to 20 Year 1 Place Value Learning Video Clip

Diver Dan is exploring the seabed. He counts the numbers of sea creatures and objects that he finds on the seabed and around the coral reef. He also completes sequences of numbers between 10 and 20.

More resources for Autumn Block 4 Step 1

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Discussion points for teachers

1. How many clown fish can he see?
Discuss how to count the clown fish effectively. Discuss the number of clown fish on the screen.
16

2. How many clown fish are left?
Discuss Dan’s counting backwards as each clown fish swam away. Discuss which number is one less than the last number Dan counted. Discuss counting the number of clown fish left in shot to check.
11

3. Is Dan’s counting correct?
Discuss Dan’s counting and whether he has included all the numbers. Discuss counting the crabs again to check.
Dan’s counting is incorrect because he has missed out the number 11. There are 12 crabs altogether: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

4. Which shells are missing from the sequence?
Discuss the order of the sequence and counting in order to discover the missing numbers. Discuss which numbers are missing and why, using ‘one more than’ and ‘one less than’.
14 and 18

5. Which numbers will fit in the sequence to open the lock?
Discuss the order of the sequence and count in the correct order to discover the missing numbers. Discuss which numbers are missing and why, using ‘one more than’ and ‘one less than’.
14 and 12

6. How many gold coins are in the treasure chest?
Discuss how to count the gold coins effectively. Discuss the number of gold coins in the treasure chest.
15

Optional discussion points:
What other animals might Dan find on the seabed? What else could be counted on the seabed?

National Curriculum Objectives

Mathematics Year 1: (1C1) Represent and use number bonds and related subtraction facts within 20

Mathematics Year 1: (1C2b) Read, write and interpret mathematical statements involving addition (+), subtraction (–) and equals (=) signs

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