Lesson 1 of 3

Variables and types

Watch, read the card, then practise. Variables · Data types · Converting types

Video coming soon

The video for this lesson is being recorded.

Meanwhile, the notes below and the 60-second cards cover the same ideas.

Variables
A variable is a name that points to a value, so you can use and change it later.
Remember: = means 'store this', not 'is equal to'.
Data types
Every value has a type, and the type decides what you can do with it.
Remember: "7" (text) and 7 (number) are different things.
Converting types
You can change a value from one type to another with int(), float() and str().
Remember: input() always gives text. Convert it before doing maths.

Try the example in Code Lab

marks = 82
marks = marks + 5
print(marks)

Lesson 1 of 3

Watch, read the card, then practise. Variables · Data types · Converting types

Video coming soon

The video for this lesson is being recorded.

Meanwhile, the notes below and the 60-second cards cover the same ideas.

Variables
A variable is a name that points to a value, so you can use and change it later.
Remember: = means 'store this', not 'is equal to'.
Data types
Every value has a type, and the type decides what you can do with it.
Remember: "7" (text) and 7 (number) are different things.
Converting types
You can change a value from one type to another with int(), float() and str().
Remember: input() always gives text. Convert it before doing maths.

marks = 82
marks = marks + 5
print(marks)