Splitting an object or value into smaller parts.

Identify the quantity shown in a representation of numbers 11 to 19

Maths

Explain that the digits in the numbers 11 to 19 express quantity

Explain that the digits in the numbers 11 to 19 express position on a number line

Use knowledge of 10 and a bit to solve problems

Solve subtraction problems using knowledge of 10 and a bit

Explore odd and even numbers within 20

Double the numbers 6 to 9 and halve the result explaining what doubling and halving is

Use knowledge of addition facts within 10 to add within 20

Use knowledge of subtraction facts within 10 to subtract within 20

Use knowledge of addition and subtraction facts within 10 to add and subtract within 20

In this unit pupils will explain 11-19 as cardinal and ordinal numbers. They will double and halve numbers 6-9 and use addition and subtraction facts to add and subtract within 20. In the future unit pupils will explore the counting sequence for counting to 100 and beyond and represent the numbers from 20-99 in different ways, including marking the position on a number line. 

In prior learning, pupils will have looked for patterns and relationships in number, spotting connections and talking about what they notice. In this unit pupils will explain 11 to 19 as cardinal and ordinal numbers. They will double and halve the numbers 6 to 9 and use known facts to add and subtract within 20.

In this unit pupils will explain 11-19 as cardinal and ordinal numbers. They will double and halve numbers 6-9 and use addition and subtraction facts to add and subtract within 20.

Composition of numbers 11 to 19

What number is being shown on the ten frames?

Which ten frame shows the same number as the part part whole model?

What number is being shown on the Gattegno chart?

To show 13 on the Gattegno chart, how many ones would there be?

Some teen numbers have been partitioned. Match the teen number to the number of tens and ones.

What number comes next in the count? 10, 11, 12, 13, {{ }}

Look at the image. 8 is made of 5 and {{ }}.

Which place value chart represents these counters?

Which number completes the sentence? {{ }} is made of 1 ten and 7 ones.

Which number is being described? It is a two-digit number with 1 ten and 1 one.

Starter Quiz

What number comes next in the count? 10, 11, 12, 13,