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                             In Scratch each sprite can be coded separately, allowing you to bring your
                            project to life with fun interactions.

                             The stage in Scratch is divided into a grid of coordinates, made up of both

                            x and y values.
                             Operator Blocks are used to do arithmetic and logical calculations.

                             Variables are the data values for which the value can be changed when the
                            code is being processed.

                             The blocks in the Sensing category help the selected sprite to detect other
                            sprites or other elements on the stage including the edges of the stage.

                             The statements that are executed on the basis of decisions taken from a

                            choice are called conditional statements.

                                                              Checkpoint

                     A.  Tick ( ) the correct option.

                         1.  Choose the colour in which the Operator blocks are shown in Scratch.

                            a.   Yellow                                     b.   Light-green

                            c.   Purple                                     d.   Blue

                         2.  Recognise the coordinates marked as the center on the Scratch stage.

                            a.   (2, 2)                                     b.   (-2, 1)

                            c.   (0, 0)                                     d.   (3, -3)

                         3.  Which of the following block categories holds values?

                            a.   Operators                                  b.   Looks

                            c.   Variables                                  d.   Motion

                         4.  Identify the category in Scratch that detect other sprites or other elements

                            on the stage.

                            a.   Pen                                        b.   Looks

                            c.   Sensing                                    d.   Control

                                                                                     Basic Programming in Scratch       137

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