You will need to download and print out this jigsaw (or draw the pieces on squared paper), and cut up the pieces into squares (don’t cut along the diagonal lines!).
Now try to put the square pieces together without rotating any of them (so that in the finished jigsaw all the […]
Do this as you read…
Think of a number.
Multiply it by 3.
Add 6.
Take away your number.
Divide by 2.
Take away your number.
You have finished with 3.
How does this work?
If a sum invested gains 10% each year how long will it be before it has doubled its value?
If an object depreciates in value by 10% each year how long will it take until only half of the original value remains?
Why aren’t these two answers the same?
Is there a rate, used […]
The wall painting on the house in this photo shows geometric transformations: reflections, rotations and translations. The symmetries of a design are the transformations that leave the pattern looking exactly the same.
Assume that the parts of the design that look the same are identical and that they only appear different because […]
Everyone in the class must shake hands with everyone else and say hello, or bow to each other in a one-to-one greeting. Everyone must join in. How many handshakes (or bows) will there be altogether?
This will be difficult to count, especially if you have a large class. Try the problem in […]
The letters A, B, C, D, E, F, G and H correspond to the numbers from 0 to 7 with no repetitions.
Use the clues that A+C=A and F×D=F to find the values of two letters.
Use the clues B−G=G and B/H=G to find the value of another three letters.
Use the clues A+H=E […]
INDIVIDUAL OR WHOLE CLASS ACTIVITY
Sort these quadrilaterals into 4 sets of 4 and describe the properties of each set.
.GROUP ACTIVITY – groups of 4
Cut out 16 cards and mix them up.
Give each member of the group 4 cards. They must give their cards to other members of the […]
When I went into a classroom earlier this week a child rushed up to tell me she was 8 that day!
Well, Happy Birthday to everyone who has a birthday today!
Whatever age you are, can you find a variety of questions that give your age as the answer? This […]
In the diagram the line OS is perpendicular to the lines OR and PQ.
The line RS is a tangent at P to the circle centre O and radius 1 unit.
Find the lengths OQ, PQ, PS, OS, OR and RP.
If OS and OR lie on the coordinate axes, what are the coordinates […]
It is my birthday and in 15 years’ time, my age will be the square of my age 15 years ago!
Can you work out how old I am?
Now I am thinking “Was there ever a time in my life when I had other special birthdays?”
Could I have said:
“In 3 […]
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