the rules about how a programming language should be written

a precise set of ordered steps which can be followed by a human or a computer to do a task

Create an algorithm for a text-based program

Computing

Programming a screen turtle

Patterns and repeats

Count-controlled loops

Procedures in programming

Creating a program that uses loops

In this unit pupils will create text-based programs which use repetition. They will plan, modify, and test commands to create shapes and patterns. They will explore the different types of loops that can be used to repeat commands in a program.

Repetition in programs

a rule about how a programming language should be written

What command moves the turtle back to its starting position?

Which direction is the turtle facing when the program starts?

yes, because running means it has no errors

no, a program can run but still produce incorrect results

no, because running a program guarantees it was written perfectly

If a program runs, does it always mean it is correct?

a set of ordered commands that can be run by a computer to complete a task

It gives a single instruction to the computer.

a small shape on the screen that moves and draws when given commands

What happens if you change the value of a command?

What is a series of defined logical steps that can be followed to solve a problem?

What is the abbreviation for the command that lifts the pen so the turtle moves without drawing?

Create an algorithm for a text-based program

Lesson outcome