Materials needed:
To prepare the jigsaw - pencil, black marker, cardboard paper, cardboard (hard), glue, craft knife
While with the children - (the jigsaw puzzle), adhesive tape, colours
Method:
To prepare the jigsaw puzzle ;
Since we wanted a big puzzle (as in size) and a colourless one, on which three or four children could work simultaneously, we had to prepare these ourselves. To do so -
1) Find a picture you like. Preferably it is just the outline of the picture, and one which is easy for you to copy on the cardboard paper and which won’t be too difficult for the children. (e.g. http://coloringbookfun.com/ )
2) Copy this picture on the cardboard paper using the pencil.
3) Trace over the pencil with the marker. Leave to dry for a couple of minutes and then you can erase any pencil lines that were not covered by the marker. (if the marker you’re using does not smudge, you do not have to wait)
4) Stick the cardboard paper on the hard cardboard. Cardboard glue would be the best to use here, but pva glue or even any other glue stick would do just fine. Leave to dry for some time, and if possible put some weight on the cardboard.
5) Then draw on the cardboard those typical squigly jigsaw puzzle lines. However it is recommended that the lines are kept as straight as possible, and pattern number two is used instead of the traditional semi-circular one (see figure)

This will make the next step much more easier
6) Now cut along the lines that you drew. Since cardboard might be a bit difficult to cut with a scissors, we suggest to use a craft knife*
With the children ;
The children were divided into groups of 3 or 4. Each group was given a jigsaw puzzle (which were prepared beforehand since preparation takes quite some time) and asked to solve it. The children had to work as a group, and to encourage sharing, a number of pieces of the puzzle were given to each child in the group. This forced the children to communicate between them and not just sit down hunting for pieces. When the puzzle was solved, adhesive tape was used on the backside so as to stick all the pieces together and then the children had to colour the picture.
(*Children should not be left with such tools on their own. Preferably an adult helps the child during this step, or at least monitor closely the child if you feel that he is responsible enough to use the craft knife himself.)
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