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SCRATCH BLOCKS

                  Blocks are codes or commands used to create programs in Scratch. These puzzle
                  shaped looking blocks connect each other vertically like a jigsaw puzzle. To use
                  a block, simply select and then drag it onto your coding area. To add multiple
                  blocks to a script, drag new blocks into the location in the script where you want

                  them to appear. You can add new blocks above or below the existing blocks.
                  The blocks are arranged in different categories. You can see these categories under
                  the Code tab.

                  Motion Blocks

                  They are colour-coded dark blue and are used to control

                  the sprite movement. When you click on the  Motion
                  button, you will see the programming blocks that can be
                  used with your sprite for its placement, direction, rotation
                  and movement. Let’s program your sprites with some code.

                  Step 1  Click on the Motion block.
                  Step 2  Drag the “move 10 steps” block to coding area.

                  Step 3  Change the “10” to “50” by clicking in the block and typing 50.
                  Step 4  Double-click on the block in the Script area to see your sprite,
                           move 50 pixels to the right (towards the face of the sprite).

                  Step 5  To move the sprite backwards, drag "move 10 steps" block
                           and change 10 to -70. This will move the sprite to the left
                           (in the opposite direction of the face of sprite).

                  More Motion Blocks

                  Step 1  Drag  the  “turn 15 degrees” block to  the  previous
                           block of code and release it below the previous 'move'

                           block. It will attach itself to the 'move' block.
                  Step 2  Add more blocks. Double-click on the blocks to play

                           the animation and see your sprite move.
                  Events Blocks


                  They  are  colour-coded yellow and  are  used to sense
                  events, which run the scripts like when a sprite is pressed, a
                  key is pressed, or the green flag is clicked. They are placed

                  at the top of any script. They control starting of the scripts.
                  The first block present in control is the “when green flag
                  clicked”              block.



                  84     iPRIME (Ver. 2.2)–V
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