Starter quiz
- Sort these numbers in the order you would say them when counting forwards.
- 1⇔6
- 2⇔7
- 3⇔8
- Sort these numbers in the order you would say them when counting backwards.
- 1⇔9
- 2⇔8
- 3⇔7
- Sort these numbers in the order you would say them when counting forwards.
- 1⇔60
- 2⇔70
- 3⇔80
- Which of the following is a decade number?
- 6
- 60 ✓
- 16
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- Aisha is counting forwards in tens from 50. Which of the following numbers won't she say?
- 80
- 40 ✓
- 70
-
- Lucas is counting backwards in tens from 70. Which of the following numbers won't he say?
- 30
- 80 ✓
- 50
-
Exit quiz
Which row of the one hundred square does the picture show?- the twenties ✓
- the thirties
- the forties
-
Which of these rows from the one hundred square should come first when counting forwards?- the sixties
- the fifties ✓
- the seventies
-
- Sort these numbers in the order you would say them when counting forwards along the row of the one hundred square.
- 1⇔45
- 2⇔46
- 3⇔47
- Sort these numbers in the order you would say them when counting backwards along the row of the one hundred square.
- 1⇔27
- 2⇔26
- 3⇔25
- Numbers can be said in different ways. Match the number to the correct way to say it.
- 2 tens⇔20 ✓
- 2 tens 5⇔25 ✓
- 3 tens 6⇔36 ✓
Lucas is counting along one of these rows from the one hundred square. As he counts, he says 4 tens 3. which number is he counting?- 34
- 43 ✓
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Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- You can use the patterns in the one hundred square to help you count to and from 100
- The one hundred square is split into rows and these can help you count.
- All the numbers in a row start in the same way except the decade number at the end.
Common misconception
Confusion when counting select rows on a one hundred square, e.g. children may not use the end of the number (the ones) to help them count accurately, or may say the row ending in 40 is the 'forties'.
Label 'decades' throughout the lesson, and model errors in counting within these so that children get used to hearing when the count doesn't sound right.
Keywords
Row - A straight line of numbers, objects etc, arranged horizontally.
Pattern - A repeated arrangement of numbers, colours or shapes which are related to each other in some way or linked by a certain rule.
Decade - A set of 10 numbers, all beginning with the same number of tens, e.g. 20,21…29.
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