Page 114 - Trackpad_V2.1_Class5
P. 114

Step  3    Click the Motion button to show the Motion blocks.                      move 100    steps

                  Step  4     Drag a Move 10 steps block to the code area and change the
                            value to 100.

                  Step  5    Click the Control Button to show the Control blocks.                       if      then

                  Step  6    Drag an if…then block to the code area.

                  Step  7    Drag  a  touching  mouse-pointer block  from  the Sensing block  and use it
                            with  an  if block.  Click  on the  drop-down arrow present  next  to  touching
                            mouse pointer block and select edge from the list.

                  Step  8     Drag a start sound Meow from the Sound             if
                            blocks and place it inside the if…then block.               touching edge      ?    then

                  Step  9     Click  on Green Flag button  to  see the               start sound  Meow
                            output.





                                 Role of Video Sensing extension in Scratch


                                                        Keep on clicking this icon until the
                                                              cat reaches the edge.





























                  Using the Sensing Menu                                            when       clicked
                  Now use the Sensing menu to ask the user for age, user            set  age    to 0

                  types in age, or display the stored answer.                       ask   What’s your age?  and wait
                  Now, create a variable named age.                                    set  age    to answer


                                                                                   say   Join  I Know your age is  answer




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