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Pen Block

                  Pen blocks in Scratch allow a Sprite to draw shapes and plot coloured pixels on
                  the screen. These blocks are colour-coded as dark green and are used to draw the
                  footprints of the Sprite.

                               Blocks                                          Functions

                                pen up                This block puts up Sprite’s pen up, so that it will not
                                                      draw as it moves on the screen.

                               pen down               This block puts Sprite’s pen down, so that it will draw
                                                      as it moves on the screen.

                          set pen color to            This block changes pen colour based on your choice
                                                      from colour picker.

                                                      This block keeps the pen  coloured  but  lighten
                      change pen shade by    10       or darkens the shade of that colour by the value
                                                      mentioned. For light shades use negative values and
                                                      or dark shades use positive values.

                                                      This block duplicates the Sprite’s image onto the
                                stamp
                                                      stage.

                      DRAWING A SQUARE


                  To draw a square, the script will be as follows:





























                  Step 1     Drag the  when       clicked  block from Events block menu.


                  Step 2     Drag the  clear  block from Pen block menu. This will clear any previously
                             drawn image, if any.



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