New
New
Year 1

Understand the use of the equals sign in equations

I can understand how we use the equal sign to show that the whole and the sum of its parts are equal.

New
New
Year 1

Understand the use of the equals sign in equations

I can understand how we use the equal sign to show that the whole and the sum of its parts are equal.

Lesson details

Key learning points

  1. We can write an equation to show that the whole is equal to the sum of its parts.
  2. The equals sign = represents ‘is equal to’. It shows us which parts of the equation are equal.
  3. When adding, the whole is called the sum.
  4. The sum is equal to the two addends.
  5. You can rearrange an equation as long as both sides of the equation remain equal to each other.

Common misconception

Children may believe the equal sign must always be placed at the end of the equation.

Provide opportunities to rearrange equations, initially where both addends are presented as one unit which balances the sum.

Keywords

  • Is equal to - Exactly the same amount or value.

  • Equals symbol - = shows that what is on the left of the symbol is exactly the same amount or value as what is on the right of the symbol.

  • Equation - An equation says that two things are equal. It will have an equal sign like this =

  • Sum - The result of adding two or more numbers.

Say 'is equal to' rather than 'makes' to emphasise that the expression on each side has the same value. Use correct mathematical vocabulary. Avoid referring to equations as 'sums', so children understand that 'sum' means the total amount.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

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6 Questions

Q1.
The image shows a whole group of pebbles that has been partitioned into two parts, large pebbles and small pebbles. Tick all the numbers that will complete the stem sentence, ___ is a part.
An image in a quiz
Correct answer: 5
8
Correct answer: 3
Q2.
Which two images represent the equation 5 + 3 ?
Correct Answer: An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
Q3.
There are 7 counters on a tens frame. Which expressions could correctly represent the counters?
An image in a quiz
7 + 3
Correct answer: 3 + 4
Correct answer: 4 + 3
Q4.
Using numerals and the plus sign, represent the picture in two ways.
An image in a quiz
Correct answer: 3 + 5
8 + 3
5 + 8
Correct answer: 5 + 3
Q5.
Which one of the following cannot represent the picture?
An image in a quiz
4 + 3
3 + 4
Correct answer: 4 + 7
Q6.
Which of the following correctly represent this image?
An image in a quiz
Correct answer: 4 + 2
Correct answer: 2 + 4
3 + 2

6 Questions

Q1.
Tick all the options which could describe the picture.
An image in a quiz
5 is the whole, 4 is a part and 9 is a part.
Correct answer: 9 is the whole, 5 is a part and 4 is a part.
Correct answer: 9 is the whole, 4 is a part and 5 is a part.
Q2.
Look at the equation. 4 + 3 = 7. Match each number to the correct word to describe it.
Correct Answer:4,part

part

Correct Answer:3,part

part

Correct Answer:7,whole

whole

Q3.
Which picture matches the part-part-whole model?
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q4.
Write an equation to match this picture, partitioning the teddies by size (small and large). Do not use spaces in your equation.
An image in a quiz
Correct Answer: 4+3=7, 3+4=7, 7=3+4, 7=4+3
Q5.
Which equation could match the part-part-whole model?
An image in a quiz
Correct answer: 4 + 6 = 10
10 + 6 = 4
Correct answer: 10 = 6 + 4
4 + 10 = 6
Q6.
Jacob writes this equation. Which of the following could represent the same picture.
An image in a quiz
Correct answer: 6 = 1 + 5
5 = 6 + 1
6 + 5 = 1