CodeBytes
Quick 60-second Coding Lessons for Busy Classrooms
Short, beginner-friendly coding lessons that teach one concept at a time using simple examples, code comparisons, and interactive practice.
Start with one concept, build confidence, and keep going.
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Quick to Teach
Each CodeByte focuses on one concept so students can learn fast without feeling overwhelmed.
Easy to Compare
Lessons connect MakeCode, JavaScript, and Python so students can see how the same idea works across languages.
Built for Practice
Every lesson includes a small Predict the Output activity and worked examples.
Explore the CodeBytes Library
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Variables
Store and update information using variables to keep track of data and make your programs more dynamic.
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Input & Output
Explore how programs take in information and give results back to the user.
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Strings
Create user-friendly messages by using text in quotation marks to display names, instructions, and meaningful output.
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Comments in Code
Clarify your code by writing helpful notes for yourself and others.
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Comparison Operators
See how programs compare values to check if something is true or false.
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If Statements
(Conditionals)
Discover how programs make decisions and run different code based on conditions.
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Loops
Repeat actions in code without rewriting the same steps over and over again.
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Boolean Operators
Combine true/false conditions to build smarter decisions in your programs.
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Functions
Organize your code into reusable blocks that make programs easier to build and understand.
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Lists/Arrays
Store multiple pieces of information in one place and access them using an index.
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Random Numbers
Generate random values to make your programs unpredictable for games and simulations.
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Coordinates
Control where things appear and move on the screen using x and y positions.
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Events
Trigger actions when something happens, like a button press or user interaction.
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Simple Animation
Create movement by updating visuals step-by-step to bring your programs to life.
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Debugging Basics
Find and fix mistakes in your code so your program runs the way you expect.
Start Free. Go Further When You’re Ready.
Basic members can access all quick CodeBytes lessons. Premium members unlock full classroom-ready lessons, worksheets, rubrics, and teaching materials.