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Create a free account to save your programs and head on over to the Lessons page for more!

In the Hello World! with LOGO tutorial we moseyed on over to the online Turtle Academy Playground to meet our little, green-shelled friend. In this tutorial, we will spend a little more time understanding what a valuable tool this is to learn the basics of programming without getting too bogged down in heavy syntax, compilers, and other horrors! If you are learning algorithms and pseudo-code you will find LOGO invaluable!

The Turtle Academy logo.
The Turtle Academy logo.

1. Taking your first steps

You can control the Turtle and make it do things on the screen by entering commands. For example, if you want the Turtle to move forward you type the command forward 100. The forward command stands for “move forward” and the 100 is a number representing how far forward the Turtle must move. By default, the Turtle will draw a line as it moves.

forward 100

If you want to turn the Turtle, use the left and right commands. These commands are followed by an integer value describing the number of degrees to turn.

right 90

Read & play with the official Lessons to learn the commands available.

2. Combine the steps

Enter (or copy) the following set of instructions into the Code Window (the input area with the placeholder text Type your code here…):

forward 100
right 90
forward 100
right 90
forward 100
right 90
forward 100
right 90

Programmers always seem to be trying to write as little as possible — think of all those acronyms you have to learn — so it should be no surprise that the forward command and the right command can be abbreviated to fd and rt as seen below:

fd 100
rt 90
fd 100
rt 90
fd 100
rt 90
fd 100
rt 90

And then click on the Run button:

Annotated screenshot of Turtle Academy Playground.Annotated screenshot of program in Turtle Academy Playground.

Read all about the history of the LOGO language on Wikipedia: Logo_(programming_language)

  1. the Playground section
  2. the Code Window
  3. the Drawing Box
  4. the Turtle
  5. the Run button
  6. the program in the Code Window
  7. the results of the program
  8. register to create a profile or login to an existing profile

4. Next steps

Ready for the next step? Head on over to the next tutorial: Write a loop in LOGO!


References:

  1. Wikipedia. (2022) Logo (programming language). Available at: https://en.wikipedia.org/wiki/Logo_(programming_language) (Accessed: 29 October 2024).
  2. Terrapin. (No date) Commands Overview. Available at: https://resources.terrapinlogo.com/weblogo/commands/ (Accessed: 22 April 2024).

By MisterFoxOnline

Mister Fox AKA @MisterFoxOnline is an ICT, IT and CAT Teacher. He has a passion for technology and loves to find solutions to problems using the skills he has learned in the course of his IT career.

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