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1 Step 2 Step

Age 11 to 14 Challenge Level:

Liam's house has a staircase with 12 steps. He can go down the steps one at a time or two at time. In how many different ways can Liam go down the 12 steps?

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1 Step, 2 Step Poster

Age 11 to 14 Challenge Level:

1 Step, 2 Step - September 2010

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1 to 8

Age 7 to 11 Challenge Level:

Place the numbers 1 to 8 in the circles so that no consecutive numbers are joined by a line.

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1, 2, 3 Magic Square

Age 7 to 11 Challenge Level:

Arrange three 1s, three 2s and three 3s in this square so that every row, column and diagonal adds to the same total.

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1, 2, 3, 4, 5

Age 7 to 11 Challenge Level:

Using the numbers 1, 2, 3, 4 and 5 once and only once, and the operations x and ÷ once and only once, what is the smallest whole number you can make?

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10 Apples up on Top

Age 3 to 7 Challenge Level:

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10 Little Rubber Ducks

Age 3 to 5 Challenge Level:

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10 Olympic Starters

Age 16 to 18 Challenge Level:

10 intriguing starters related to the mechanics of sport.

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100 Percent

Age 7 to 11 Challenge Level:

An interactive game for 1 person. You are given a rectangle with 50 squares on it. Roll the dice to get a percentage between 2 and 100. How many squares is this? Keep going until you get 100. . . .

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100 Square Jigsaw

Age 5 to 7 Challenge Level:

Can you complete this jigsaw of the 100 square?

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1000 Published Shorts

Age 11 to 16 Challenge Level:

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100m Sprint

Age 14 to 16 Short Challenge Level:

Anna, Bridget and Carol run a race. Can you work out where Carol was when Anna finished?

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11x11 Square

Age 11 to 16 Challenge Level:

Here's a neat trick you can do with an 11 by 11 square...

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12345

Age 14 to 16 Short Challenge Level:

Repeat a pattern of numbers to form a larger number. Can you find the sum of all the digits?

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17s and 23s

Age 11 to 14 Short Challenge Level:

Weekly Problem 22 - 2010
Can you form this 2010-digit number...

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18 Hole Light Golf

Age 5 to 16 Challenge Level:

The computer starts with all the lights off, but then clicks 3, 4 or 5 times at random, leaving some lights on. Can you switch them off again?

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1st Stemnrich T I Day 7 December 2012

Age 11 to 18

A holding page for the resources and links from the first stemNRICH TI day for 2012-13.