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A Bag of Marbles
Age
5 to 7
Challenge Level
Problem
Getting Started
Student Solutions
Teachers' Resources
Suppose that in a bag of marbles, all the ones that -
are rough to feel, have a blue colour on them;
sparkle when rolling, have a red colour on them;
are cold to touch, have a white colour on them;
are dark inside, have a green colour on them.
What can you say about each of the marbles A - J?
Imagine you are making marbles. What colours must be put on marbles that
-
sparkle when rolling but are dark inside?
are cold to touch and feel rough?
are cold, but sparkle when rolling?
What colour(s) could be on a marble that
-
is cold?
sparkles when rolling?
What colours would you find on a cold, sparkly, dark and rough marble?