Page 6 - 新思维数学学生用书2 样章

How to use this book

An investigation to carry out Let’s investigate

Zara draws this shape on the 100 square.
with a partner or in groups. She says she always has 2 or 3 odd
numbers in her shape.
This will help develop your Is Zara correct?
Convince your partner that you are
skills of thinking and working correct.

mathematically.

Questions to help you Compare with a partner how you each worked out
the missing numbers in question 6.
What did you do the same?
think about how you learn. What did you do differently?

Look what I can do!
What you have learned in the • I can represent 2-digit numbers in tens and ones.

unit. Tick the column to show • I can estimate how many there are then count to
check.
• I can count on and back in ones, twos and tens.
how you feel about each thing.

Check your progress
1 Find the missing totals.
Questions that cover what you a 42 b 78 c 64
+ 5 + 10 + 30
have learned in the unit.
d 48 e 69 f 77
− 20 − 10 − 6

At the end of several units, Project 4

there is a project for you to Time a task

carry out using what you For this activity you will need to work in pairs.
One of you will use a timer that shows seconds, and the other
have learned. You might will choose one of the following tasks:
a Counting to 20
make something or solve b Drawing a simple stick man
c Standing on one foot for as long as possible
d Saying a nursery rhyme
a problem. e Walking slowly round the room

Projects and their accompanying teacher guidance have been written by the NRICH

Team. NRICH is an innovative collaboration between the Faculties of Mathematics
and Education at the University of Cambridge, which focuses on problem solving and

on creating opportunities for students to learn mathematics through exploration and
discussion.

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