Study Guides

Unit Summary

This unit introduces pupils to string-handling techniques, they will explore how a string can be iterated over using a loop and sliced to create substrings. Pupils will be introduced to arrays and lists and explore the differences between the two. They will manipulate with a variety of list methods.

Lesson Summary

You will learn to create a program using string handling techniques.

Key Notes

• The contents of a string can be validated.
• The random module can be used to generate random numbers and pick random letters from a string.
• Concatenation is a way of joining strings using the + operator to make a new string.
• Strings can be manipulated using the upper() and lower() string methods to convert the string into upper- or lowercase.

Vocabulary To Learn

• random: a module that can generate random numbers, pick random items or shuffle a list
• concatenation: the process of joining strings together to create a new string
• lower(): a string method that converts all letters in a string to lowercase
• upper(): a string method that converts all letters in a string to uppercase

Common Mistakes To Avoid

• The random module will only generate random numbers.

3 Quick Questions (With Answers)

More Lessons In This Unit

• 2D arrays and lists Study Guide
• 2D lists challenge Study Guide
• Arrays and lists Study Guide
• List methods Study Guide
• Programming project - Sense HAT I Study Guide
• Programming project - Sense HAT II Study Guide
• String handling Study Guide
• Substrings Study Guide