Sequence
Also known as: sequential execution, step-by-step
Executing a series of instructions one after another in a fixed, specific order. The simplest form of program flow—the foundation of all algorithms.
This concept is covered in depth in our understanding number sequences and patterns, with worked examples, practice problems, and common mistakes.
💡 Intuition
Do this, then that, then the next thing—order matters and each step must finish before the next.
Core Idea
Each step must complete fully before the next step begins; the order determines the result.
🔬 Example
🎯 Why It Matters
The simplest form of program flow—the foundation of all algorithms.
⚠️ Common Confusion
Some steps can't be reordered; others can. Understanding dependencies is key.
Related Concepts
How Sequence Connects to Other Ideas
To understand sequence, you should first be comfortable with algorithm. Once you have a solid grasp of sequence, you can move on to selection and iteration.
Go Deeper
Want the Full Guide?
This concept is explained step by step in our complete guide:
Growing Patterns, Arithmetic and Geometric Sequences →Frequently Asked Questions
What is Sequence in CS Thinking?
Executing a series of instructions one after another in a fixed, specific order.
Why is Sequence important?
The simplest form of program flow—the foundation of all algorithms.
What do students usually get wrong about Sequence?
Some steps can't be reordered; others can. Understanding dependencies is key.
What should I learn before Sequence?
Before studying Sequence, you should understand: algorithm.