Year 10 - Computing
Substrings
Programming: strings and lists
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
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 slice a string to create a substring and then use list methods on the substring.
Key Notes
- A substring is a part of a string.
- Slicing can be used to separate a string into substrings.
- ASCII is a character set used to represent all of the characters on a standard American or English keyboard.
Vocabulary To Learn
- substring: part of a string
- slice: the process of extracting a specific substring
- ASCII: a character set that represents each character with a unique numerical value
Common Mistakes To Avoid
- Indexing starts at 1 as that is the location of the first element.
3 Quick Questions (With Answers)
1. Describe the system or process from this lesson in clear steps.
A substring is a part of a string. Slicing can be used to separate a string into substrings.
2. Define this computing term and give one practical example. 'substring'
part of a string. Add one real device or system example to prove understanding.
3. Correct this common computing misconception.
Mistake: Indexing starts at 1 as that is the location of the first element. Correction: In Python, and many other programming languages, indexing starts at 0.
More Lessons In This Unit
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