Logo interpreter: Turtle graphics – Part 2

ICT KS3 Year 7

Logo interpreter: Turtle graphics – Part 2

Lesson 3: The building blocks of programs 

Subroutine

Subroutine – performs a particular task and is given a name.

The word “procedure” sometimes being used in place of the word “subroutine”. Subroutine and procedure mean the same thing.

For example, a subroutine to draw a square, could be called SQUARE.

Sometimes, the subroutine is used more than once in the same program, so you can simply type in the name of the subroutine rather than type in all the instruction again.

Example:
https://youtu.be/ry7y-7D7Oa4