Page 15 - 新思维数学学生用书4 样章
P. 15
1 Numbers and the number system
Think like a mathematician
These sets of beads have consecutive numbers in the circles.
The numbers add up to the number in the square.
Example:
1 2 3 4 5
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• You will show you are specialising when you identify examples that
fit the criteria ‘The numbers add up to the numbers in the square’.
• You will show you are generalising when you notice a way of
finding the middle number.
Complete these sets of beads.
a Tip
Consecutive numbers
27 are next to each other.
b For example, 3, 4, 5
and 6.
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Describe to a partner how to find the middle number of each set of beads.
• You will show you are specialising when you identify examples that
fit the criteria ‘The numbers add up to the numbers in the square.’
• You will show you are generalising when you notice a way of
finding the middle number.
Look what I can do!
I can count on and back in steps of different sizes.
I can extend linear sequences and describe the term-to-term rule.
I can recognise non-linear sequences.
I can extend patterns that represent square numbers.
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