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Boy and girl, both seated on the ground, working out a formula...
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Girl and boy playing algebraic chess.
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Take four of the pencils and arrange them in a square. Join an...
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Continue making the sequence of squares. Rather than using up ...
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A selection of coloured pencils
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Young girl and boy playing chess. The boy is in the process of...
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On this overhead view of a chess board, four pieces have been ...
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Draw a right-angled triangle on a piece of graph paper. On ano...
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Lay the two smaller squares of sides a and b on top of the lar...
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Plastic ruler; pens; scissors; graph paper
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Write a number on a piece of card. Here, the first number is 3...
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Your friend in the machine will apply the function, write down...
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After the girl has received back a number of answers for which...
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Colourful coffee cup; small, white milk jug
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Prepare your graph, the take the temperature of a cup of hot, ...
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Plastic ruler; pens; jam thermometer; stop watch; graph paper
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Stop watch
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Pour the milk into the cup of black coffee containing a jam th...
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Repeat the experiment with a cup of coffee, containing a jam t...
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Potted rubber plant.
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