Page 102 - Trackpad v5 class 4
P. 102

Drawing A Square

            Create the given Script and observe the sprite moving and turning only four times to draw
            a square.


                                 when   clicked
                                      pen down
                                 repeat  4
                                   move 100   steps

                                   turn   90  degrees




            Drawing A Circle

            To draw a circle, create the given script in Scratch.



                             when  clicked
                                 pen down
                                 set to pen size 5
                             repeat 360
                              move 1  steps
                              turn   1  degrees
                                  Change pen color  by  5






                                                                                                  PURE
                  In Scratch, each number is equal to 1 step  of the sprite on the stage. In the
                  turn block, change the degree from 15 to 90.                                     FACT




            FOREVER BLOCK
            Forever block is used to make the sprite do something infinitely (nonstop) until a command

            is passed over it by the user. To use the Forever block, replace the repeat block with a forever
            block. Create the following Script and Run to watch your Sprite go round and round!


                    when   clicked
                         pen down
                                                                   Subject: Deleting a block
                    forever
                      move 100      steps                         We can delete any block from the script
                                                                  by right-clicking on it and choosing the
                      turn     90  degrees                        Delete  Block  option  from the  context
                                                                  menu.








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