Back to Big Idea 3: Algorithms & Programming

Lesson PreviewLesson 8 of 18 in this unit

3.8 Iteration

Part of Big Idea 3: Algorithms & Programming in AP® Computer Science Principles. Read the opening section, then create a free account for the full interactive lesson, practice, and progress tracking.

Start free

Concept of Iteration

Iteration is a fundamental concept in computer science that refers to the repetition of a set of instructions in a program. It allows for the execution of a block of code multiple times, making it essential for handling repetitive tasks. Iteration can be controlled by specifying either a set number of repetitions or a condition that, when met, will stop the repetition. The role of iteration is to allow an algorithm to process repetitive operations without needing to write the same code multiple times, enhancing efficiency and reducing errors.

In this unit

18 lessons

  1. 3.1Variables and AssignmentsPreview lesson
  2. 3.2Data AbstractionPreview lesson
  3. 3.3Mathematical Expressions in ProgrammingPreview lesson
  4. 3.4StringsPreview lesson
  5. 3.5Boolean ExpressionsPreview lesson
  6. 3.6ConditionalsPreview lesson
  7. 3.7Nested ConditionalsPreview lesson
  8. 3.8IterationThis lesson
  9. 3.9Developing AlgorithmsPreview lesson
  10. 3.10ListsPreview lesson
  11. 3.11Binary SearchPreview lesson
  12. 3.12Calling ProceduresPreview lesson
  13. 3.13Developing ProceduresPreview lesson
  14. 3.14LibrariesPreview lesson
  15. 3.15Random ValuesPreview lesson
  16. 3.16SimulationsPreview lesson
  17. 3.17Algorithmic EfficiencyPreview lesson
  18. 3.18Undecidable ProblemsPreview lesson

Continue the full lesson in Stellar

Create a free account to unlock the remaining sections, checkpoints, course practice, and progress tracking for AP® Computer Science Principles.

Start free