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          3. Wood and its derivatives
        
        
          When you have finished your jigsaw puzzle, try another
        
        
          challenge.
        
        
          Look at the pictures:
        
        
          1.
        
        
          What material is it made of? Is it made from a
        
        
          block, a plank or a sheet of wood?
        
        
          2.
        
        
          Make a list of the procedures that you
        
        
          think you will do to the piece of wood.
        
        
          How many cuts were made in the piece?
        
        
          You can see that, despite the complex
        
        
          shapes, it’s not difficult to make.
        
        
          3.
        
        
          Name the equipment and tools used to
        
        
          do the procedures.
        
        
          4.
        
        
          Design it differently so that the pieces
        
        
          stay together once they’ve been put
        
        
          together.
        
        
          5.
        
        
          Would you be able to make one?
        
        
          INTERLOCKING PUZZLE PIECES
        
        
          If you want to make a puzzle with a drawing or photo,
        
        
          you should stick it on to the wood you are going to use
        
        
          and cut out the pieces using a pre-defined pattern. Use
        
        
          one piece of wood and draw or stick on the image you
        
        
          want. Look at the pattern on the right – you can use it
        
        
          for your puzzle.
        
        
          Instructions
        
        
          1.
        
        
          Choose a photo or image that you want for your
        
        
          puzzle. Print on paper that won’t tear easily. The
        
        
          best kind of paper is a medium thickness like
        
        
          photographic paper. You can also draw the image
        
        
          on the wood.
        
        
          2.
        
        
          Take the printed image and with a roller, spread
        
        
          glue on the back of the image and on one side of
        
        
          the wood.
        
        
          Stick the image to the wood.
        
        
          3.
        
        
          When the glue dries, draw a pattern similar to the
        
        
          one shown here.
        
        
          This will serve as a guide to cut out the pieces.
        
        
          4.
        
        
          Finally, cut out the pieces carefully.
        
        
          Check to see if there are any rough edges and sand
        
        
          them if necessary.
        
        
          ADVANCE
        
        
          EDITION