Scribd
Upload
71 views2 pages

Drawing Rectangle

The document outlines the steps to create a Scratch program that draws rectangles using a flowchart and specific coding instructions. It details the setup of sprites, variables for base and height, and the necessary blocks to execute the drawing. The final steps include testing the program and saving the code and stage screenshots in a specified format.

Uploaded by

otmanfuenla401
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as ODT, PDF, TXT or read online on Scribd
71 views2 pages

Drawing Rectangle

The document outlines the steps to create a Scratch program that draws rectangles using a flowchart and specific coding instructions. It details the setup of sprites, variables for base and height, and the necessary blocks to execute the drawing. The final steps include testing the program and saving the code and stage screenshots in a specified format.

Uploaded by

otmanfuenla401
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as ODT, PDF, TXT or read online on Scribd
You are on page 1/ 2

SCRATCH: DRAWING A RECTANGLE

We are going to create a program in Scratch to draw rectangles.


Before starting with Scratch, we need to think what do we need in order to create or define a
rectangle. So, draw a flowchart where a way to draw a rectangle is described.

The flow chart describes an algorithm in a graphic form. We can use this algorithm to create the
program in Scratch.

Scratch
Sprite:
• Remove the beginning sprite
• Choose a new sprite by clicking here →
• Choose the pencil
• Go to the Costumes tab, select
the pencil and place the end of
the pencil in the circle which
mark the centre of the sprite

Code:
• As you may have guessed, we will need two variables (base,
height). So, create them in the variable section.
• The first block you have to use is “When green
flag clicked”. It defines the moment when a part
of code will be executed

• Place the pencil in the starting position


• Use the block “say..” to tell the user what the
program is going to do
• To get the data from a user you will need the
block “ask… and wait”
• And you will be able to use the block “answer”
to define the value of the base and then the height
• You already have all the necessary data to draw a rectangle. Now we need to activate an
extension in Scratch:
◦ Click on “add extension” and select the one with the pen
• To use the pen you have to use the block “pen down” and when you want to stop drawing
you have to use the block “pen up”.
◦ So, first you will need the “pen down” block
◦ Then, the pencil has to move to a new position using
the block “glide”
◦ Use this block 4 times to move to the four vertices
• Try your program so you are sure it is correct.
• When you finish the program take a screenshot of the code and stage.
• Copy the screenshots in a Writer document and save it as:
Surname_Name_Scratch1

You might also like