Week 9 · 45-60 min
Dictionaries
Week Summary
A quick preview of the main ideas in this week before you begin the slides.
- What Is a Dictionary?
- Accessing Dictionary Values
- Adding and Updating Entries
- Removing Entries
Glossary
Review these key terms before starting this week. They are kept simple so students can learn the new vocabulary before moving into the slides.
- What Is a Dictionary?
- What Is a Dictionary?
- Accessing Dictionary Values
- Accessing Dictionary Values
- Adding and Updating Entries
- Adding and Updating Entries
What Is a Dictionary?
Progress
1 / 8
Store and access data using key-value pairs.
Read one card at a time. Focus on the main idea first, then look at the visual on the right to help it stick.
A dictionary stores data as key-value pairs.
It uses curly braces, like {"name": "Sam"}.
Keys are unique labels for values.
Dictionaries are useful for structured, labeled data.
They differ from lists, which use numeric indexes.
Remember
Dictionaries are useful when labels matter more than positions.
What Is a Dictionary?
Slide 1 of 8
Use arrows or dots to move through the lesson
Practice
- Write 2-3 sentences about what you learned this week.
Coming Next Week: Next: File Input/Output Basics