• I can place two parts into a bar model and join them to find the whole

• I can say and complete the sentence 'part and part is whole' for my bar model

• I know the parts are still there inside the whole once they are joined

• I can find different pairs of parts that make the same whole

Success Criteria

Lesson 1: Joining Using Bar Models

We are learning to use a bar model to show two parts joining to make a whole.

• I can use the plus sign to show that two parts are joined

• I can use the equals sign to show that both sides of a number sentence are the same amount

• I can read and write an addition number sentence such as 3 + 2 = 5 to match a bar model

Success Criteria

Lesson 2: Addition Notation Using Bar Models

We are learning to write an addition number sentence using the plus and equals signs to match a bar model.

• I can start with a whole made of two parts and remove one part using a bar model

• I can say and complete the sentence 'whole remove part is part' for my bar model

• I know that the part left over is the part I did not remove

• I can remove either part from the same whole and say what is left each time

Success Criteria

Lesson 3: Removing Using Bar Models

We are learning to use a bar model to show a part being removed from the whole, leaving the other part.

• I can use the minus sign to show that a part is being removed from the whole

• I can read and write a subtraction number sentence such as 6 - 4 = 2 to match a bar model

• I know that removing a different part from the same whole leaves a different amount, unlike addition

• I can use the equals sign to show what is left after removing a part

Success Criteria

Lesson 4: Subtraction Notation Using Bar Models

We are learning to write a subtraction number sentence using the minus and equals signs to match a bar model.