New
New
Year 1

# Comparing and ordering numbers 0-20 practically

You can compare and order the numbers 0-20 practically.

New
New
Year 1

# Comparing and ordering numbers 0-20 practically

You can compare and order the numbers 0-20 practically.

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## Lesson details

### Key learning points

1. Highlight language such as 15 is more than 10.
2. What number comes before or is one less than 14?
3. Which number comes after or is one more than 14?

### Common misconception

You can compare numbers that are more than one apart and say which numbers are one more or one less.

Make it clear whether pupils are comparing numbers or whether they are giving the values that are one more and one less.

### Keywords

• One more - The next number in the count is one more than the number before and there will be one more object in the set.

• One less - The previous number in the count is one less than the next number and there will be one fewer object in the set.

You may decide not to show all slides to pupils. Be clear in the lesson as to when pupils are ordering a set of numbers rather than ordering all the numbers to 20. Make sure pupils know when they are giving one more or one less rather than ordering.
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).

## Starter quiz

### 6 Questions

Q1.
Put these in the right order to count backwards from 20.
1 - 18
2 - 17
3 - 16
4 - 15
5 - 14
6 - 13
7 - 12
Q2.
Order these numbers counting up to 20
1 - 11
2 - 12
3 - 13
4 - 14
5 - 15
6 - 16
7 - 17
Q3.
Match the sentences so that they are all true.
Correct Answer:18,is more than 14

is more than 14

Correct Answer:17,is less than 20

is less than 20

Correct Answer:16,is less than 19

is less than 19

Correct Answer:15,is equal to 15

is equal to 15

Correct Answer:16,is more than 11

is more than 11

Q4.
Is the number of cups more, equal to, or less than 18?
More than 18
Correct answer: Less than 18
Equal to 18
Q5.
Is the number of beetles less than, equal to, or more than 16?
Less than 16
More than 16
Correct answer: Equal to 16
Q6.
Which number is missing on the second bead string?
Correct Answer: 16, sixteen

## Exit quiz

### 6 Questions

Q1.
Using this number track, which comparative sentence is true?
2 is more than 16
16 is less than 2
Correct answer: 16 is more than 2
Q2.
Using these blocks, which comparative sentence is true?
A has more blocks than B and C
Correct answer: A has fewer blocks than B and C
C has fewer blocks than A and B
B has more blocks than C
Q3.
Which comparative sentence about these hats is false?
B has more hats than A
A has fewer hats than B and C
C has more hats than A and B
Correct answer: A has more hats than B and C
Q4.
Which comparative sentence about the fruit is true?
A has more fruit than B and C
Correct answer: C has more fruit than A and B
B has less fruit than A and C
Q5.
Which comparative sentence about the blocks is false?
A has more blocks than B and C
B has more blocks C
A and B have the same number of blocks
Correct answer: A and C have the same number of blocks
Q6.
Which comparative sentence about the fish is true?
Correct answer: C has fewer fish than A and B
A has fewer fish than B and C
B has more fish than A