Additive structures: addition and subtraction
Why this, why now
In this unit pupils will find missing addends in equations. They will partition a whole into 2 parts representing first, then, now stories with subtraction equations. They will learn + and - are inverse operations.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 10 / 18
Additive structures: addition and subtraction
In this unit pupils will find missing addends in equations. They will partition a whole into 2 parts representing first, then, now stories with subtraction equations. They will learn + and - are inverse operations.
10 lessons- Find the missing part in addition and subtraction stories
- Find the missing part of an addition story
- Understand subtraction as decreasing an amount
- Interpret and represent addition stories
- Interpret and represent subtraction stories
- Create addition and subtraction stories
- Furthering understanding of subtraction as decreasing an amount
- Know that addition and subtraction are inverse operations
- Represent the inverse relationship between addition and subtraction
- Find the missing part of a subtraction story