I'm Eight

Find a great variety of ways of asking questions which make 8.

Month Mania

Can you design a new shape for the twenty-eight squares and arrange the numbers in a logical way? What patterns do you notice?

Magic Plant

On Friday the magic plant was only 2 centimetres tall. Every day it doubled its height. How tall was it on Monday?

What's Left?

Stage: 1 Challenge Level:

Why do this problem?

This problem will help young learners to come to some understanding of factors and multiples leading to a first introduction to the idea of prime numbers. They will need to look at multiples of $2$, $3$ and $5$ up to $20$. For some children just making the table to use will be a useful exercise.

Key questions

Do you know the name of the numbers you have coloured in now you have done the sharing by $2$?

Do you know the name of the numbers you have left out now you have done the sharing by $2$?

Which multiplication table will you find these numbers in?

Which numbers have not been coloured in at all?

Possible extension

Learners could make a grid which goes up to $40$ or even $100$ adding $6$ and $7$ to the "red" numbers.

Possible support

Suggest starting by making the table to use. Then colour in the numbers counting in $2$s omitting $2$ itself.

Working systematically. Trial and improvement. Investigations. Addition & subtraction. Multiplication & division. Calculators. Odd and even numbers. Interactivities. Prime numbers. Factors and multiples.

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