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maths investigation year 3

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    Hi, I have to do a display this week for year 3 maths and it has be to be a maths invesigation where each child has to write on a3 paper what the invesigation was, what they found out etc.; We're just about to start shape and I'm struggling to think of anything. The only thing I can come up with is investigating whether there is a link between regular shapes and lines of symmetry, although I have found that in the past, chn can't always find the lines of symmetry and it might be hard for the LA chn.


    Does anyone have any ideas please? I am more than willing to change from shape to something else, although not data handling as everyone else seems to be doing this!


    many thanks

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    Why not do problem solving and trying to get the children to solve it logically.

    One I have done is

    You have bats (2 legs) spiders (8 legs) and frogs (4 legs)

    Tell the children a witch is trying to make a potion and it has to include 10 legs - what combinations can you have. It is very easy number bonds to 10 but push the higher to get a strategy so they have all the solutions.

    It can then extend to having 20 legs in a potion.

     It is good for the children to explian their reasoning to others and children come up with interesting ways of trying to record all solutions.


    Another option is you have a train with 5 carriages - a maximum of 4 people can sit in each carriage. If 10 / 20 etc people were on the train what are the different combinations of ways they could sit.

    Both are quite good for a mixed range class as with simple resources its easy for less able children and then you challenge the highers to find all solutions and to try to find a logical way of finding the answers.

    Hope this helps

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    If you want it to be about shape


    Why not something as straightforward as pentominoes


    Give them 5 multilink cubes and ask them to make the 12 different shapes

    • At a basic level they will make shapes, draw them on square paper and create their display
    • At the next level they can explain why some shapes that look the same are in fact different because one shape has just been turned to make the other
    • At the top level they could look at symmetry in the shapes made
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