Composition of numbers 11 to 19
Why this, why now
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.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 12 / 18
Composition of numbers 11 to 19
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.
10 lessons- Use knowledge of subtraction facts within 10 to subtract within 20
- Use knowledge of addition facts within 10 to add within 20
- Double the numbers 6 to 9 and halve the result explaining what doubling and halving is
- Solve subtraction problems using knowledge of 10 and a bit
- Explore odd and even numbers within 20
- Use knowledge of addition and subtraction facts within 10 to add and subtract within 20
- Identify the quantity shown in a representation of numbers 11 to 19
- Use knowledge of 10 and a bit to solve problems
- 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