8.2 · Lesson 2 of 4
Arrays and loops
Syllabus 8.2.2Syllabus 8.2.3
What this lesson covers
- Use variables as array indexes
- Read and write array values using iteration, including nested loops
Key vocabulary
- Iteration
- Repeating a section of code using a loop.
- FOR loop
- A count-controlled loop, ideal for processing every element of an array.
- Running total
- A variable that has each value added to it as a loop runs.
Check your learning
- Quick check: 4 questions
- Key vocabulary test: 3 terms
- Activity 1: Trace the code · 6 questions
- Activity 2: Fill the gap · 6 questions
- Activity 3: Arrays and loops quiz · 8 questions