This was a very well answered problem. Rebecca from Lexden Primary School tells us how the table should be filled in:
1st row: Yellow square, blue square, red square
2nd row: Yellow triangle, blue triangle, red triangle
3rd row: Yellow circle, blue circle, red circle
Isobel, who goes to Wheldrake with Thorganby CE (Aided) School, explains how to go about filling in the table:
The top horizontal line is the colour of the shape and the
furthest left vertical line shows the shape.
The grid is filled in by selecting a colour and going down to a shape. On the column of that colour and the row of that shape, the shape is drawn and the shape is filled in with the colour.
Maya and Hannah sent us a great diagram of the solution: