Page 112 - 2422_C5_Flipbook
P. 112
Factopedia Let’s PraCtiCe Century #Technology Literacy
21 st
Skills
Open Scratch. Create a script using sensing block and
conditional block where a penguin asks questions to a
bear.
There is a fun feature Let’s BaCk-uP
in Scratch that you
can add any image or The blocks in Scratch are in different shapes. They can
text you want to add be divided into six types of shapes.
to your program. Hat blocks always come at the top of a script as they
start a script.
Stack blocks perform the main commands.
Boolean blocks are condition blocks which return the
values “true” or “false” or the numbers “0” or “1”
Reporter blocks can hold values, which consist of
numbers or strings.
C blocks are loop blocks which check if a condition is
true in the blocks within the loop.
Go button is used to
run the script and The blocks that end scripts are known as Cap blocks.
Stop button is used to The sensing blocks in Scratch sense the input from the
stop the execution of keyboard or the mouse at the time of execution of a
the project. script.
In Scratch, a program is called a Script.
We store data in the computer memory so that we
can get information from it later. This data is stored in
variables.
A variable that stores numbers is called a numeric
variable.
A variable that stores letters in the form of strings or
characters, is called string variable.
You can open any
project from the Scratch has two conditional blocks: If…then….. and If…
website https:// then….else block.
scratch.mit.edu/ and You can create games in Scratch by painting a new
click on ‘See Inside’ to sprite and a new backdrop.
see its script.
110 Premium Edition-V

