If this is a school assignment, I don't know the exact wording used but data types are useful because they provide the values that a object has.
Datatypes that I know that are used are: Booleans, List, Arrays, Numbers/Integers, and Strings
An example would be the line: user = int(input(" "))
or at least something like that. The "int" is a datatype which requires a number/integer in an prompt.