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Hour Long Tutorials

Hour of Code: Programming with Karel the Dog

Giving commands to a computer, which is what programming is all about, is just like giving commands to a dog. Learn how to code with Karel t... Morehe Dog—a fun, accessible, and visual introduction to text or block-based programming that teaches fundamental concepts like commands and functions to beginners. Less

  • LevelBeginner
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Hour of Code: La Programación con Karel el Perro

Dar órdenes a una computadora, que es lo que la programación se trata, es como dar órdenes a un perro. Aprende a codificar con Karel el perr... Moreo, una introducción divertida, accesible y visual a la programación que enseña conceptos fundamentales como comandos y funciones a principiantes absolutos. Los estudiantes pueden programar en bloques o texto. Less

  • LevelBeginner
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Hour of Code: Graphics with Tracy the Turtle

Learn the basics of programming by drawing shapes on your screen with Tracy the Turtle! Turtle Graphics (or LOGO) is a beginner friendly way... More to explore programming concepts and bring creativity into programming in a visual way. Less

  • LevelBeginner
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Hour of Code: Web Design with CodeHS

Learn the basics of building and designing a website! Use HTML to add text, pictures, and color to your page. These skills are the foundatio... Moren for all website creation and is a great activity for students who are interested in the internet and how websites come to life! Less

  • LevelBeginner
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Hour of Code: Digital Art in Pixels

Learn how images are stored and displayed on computers using pixels. Explore how images are encoded as a grid of color values, and make your... More own digital images using binary and hexadecimal color codes! Less

  • LevelBeginner
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Hour of Code: Coding in Python with CodeHS

Learn the basics of coding with the Python programming language by writing programs that you can interact with! This hour will cover printin... Moreg, variables, math, and getting information from users. Write a program that take in and stores data from a user and returns a unique response! Less

  • LevelBeginner
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Hour of Code: Generating Beats with Code

Students are introduced to the JavaScript block coding environment. They learn how to write a program that plays their own 8 count beat patt... Moreern. Less

  • LevelBeginner
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Hour of Code: Generating Art with Code

Students are introduced to the JavaScript block coding environment. They learn how to create a computer program that places images and text ... Moreon a canvas to create their own meme. Less

  • LevelBeginner
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Hour of Code: Coding in Sports

Students are introduced to the JavaScript block coding environment. Students curate the environment of their own sports video game.

  • LevelBeginner
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Hour of Code: Punnett Squares

In this hour of code, students will create a program that will solve for allele pairs based on user input. Students will program with Tracy ... Morethe Turtle in Python to make this happen. Students should have prior knowledge of basic biology concepts and Punnett Squares before beginning this activity. Less

  • LevelBeginner
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Hour of Code: Building Mathematical Models

Students are introduced to Tracy the Turtle and learn how to code different mathematical models in Python! No coding experience is necessary... More, but students should have completed Algebra I or higher. Less

  • LevelBeginner
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Hour of Code: Explore the Bitcoin Ledger

This Hour of Code looks at how transactions work on the Bitcoin ledger and investigates the overall performance of the Bitcoin blockchain.

  • LevelBeginner
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Hour of Code: Coding for a Litter-Free Community

In this Hour of Code, students learn about how they can use computer science to help solve one of the biggest problems facing our world toda... Morey: litter and waste. Students start by exploring real world examples of how engineers are using computer programming to reduce the amount of litter in their community. Then, they choose between two programming adventures: Clean Up with Karel or Web Design for a Litter-Free Community. In Clean Up with Karel, students learn the basics of programming in Python by giving commands to Karel. In Web Design for a Litter-Free Community, students learn the basics of HTML by creating their own webpage. Less

  • LevelBeginner
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Hour of Code: Supporting Artists with Code

This Hour of Code begins with an overview of how coding has impacted the art community by providing real-world examples. In the final lesson... More, Code an Online Shop, learners are given a real-world coding assignment that will reinforce what they’ve covered in the previous lesson. Using the fundamentals of HTML, learners will have the opportunity to create an online shop mockup. Less

  • LevelBeginner
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Hour of Code: Creating Virtual Worlds

Learn the basics of building virtual reality worlds using HTML and the A-Frame JavaScript Library. Through this activity, students will buil... Mored their own virtual reality worlds that are compatible with VR devices, including smartphone VR headsets! Less

  • LevelIntermediate
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Hour of Code: Creating Apps with JavaScript

This activity gives you some examples on how to make your first real mobile apps and how to test them out on your phone. To run apps on a sm... Moreartphone phone, students will need to download the Expo app. Find more information about Expo at https://expo.io. Less

  • LevelIntermediate
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Hour of Code: React Native Mobile Apps with CodeHS

This activity gives you some examples on how to make your first real mobile apps and how to test them out on your phone. To run apps on a sm... Moreartphone phone, students will need to download the Expo app. Find more information about Expo at https://expo.io. Less

  • LevelIntermediate
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Hour of Code: Coding in Java with CodeHS

Learn the basics of the Java programming language. This hour will cover printing, variables, types, and getting information from users. Writ... Moree a program that take in and stores data from a user and returns a unique response! Less

  • LevelIntermediate / Beginner
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Hour of Code: Collision Simulations

Students will explore how mass and speed affect elastic collisions by using conservation of momentum and conservation of kinetic energy equa... Moretions to verify final speed values as calculated by a simulation. Less

  • LevelIntermediate / Beginner
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Hour of Code: JavaScript Graphics Art

Make your own graphics and drawings on the web using JavaScript. Learn how to use our JavaScript graphics library to make pictures by adding... More and modifying shapes to your canvas. This is a great activity for an art class or geometry class, as requires students to place their objects on a 2d plane. Less

  • LevelIntermediate / Advanced
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Hour of Code: Explore Blockchain Technology

This Hour of Code is an introduction to cryptography, hashing and blockchain technology, which is the foundation of Bitcoin.

  • LevelIntermediate / Advanced
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Hour of Code: Coding with Data Visualizations

Coding with Data Visualization is an hour long coding lesson that teaches students about the power of using data visualizations to display d... Moreata in meaningful and easy to understand ways. Students will learn about several types of data visualizations and how they can be used to represent data, as well as practice creating them using a JavaScript library. Less

  • LevelAdvanced
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Hour of Code: Pi Day

Have you ever wondered how many digits of Pi are really needed? Using Java, students will explore the impact of using different numbers of P... Morei digits in their calculations. This course is designed for students that are familiar with print statements and basic loops & conditional statements in Java. Less

  • LevelAdvanced
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Unplugged: Color by Pixel

Learn to make your own art with pixels in this unplugged tutorial. This tutorial teaches students about coordinates, what pixels are, and ho... Morew to create drawings by setting pixels to be different colors. A great offline, visual activity. Less

  • LevelBeginner
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Unplugged: Coding with Karel the Dog

Karel is a dog that only knows how to move, turn left, and place tennis balls in his world. You can give Karel these commands to instruct hi... Morem to do certain things. This tutorial is a great activity for classrooms without computers Less

  • LevelBeginner
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Unplugged: Caesar Cipher Wheel

In this Hour of Code, students are introduced to cryptography by using the classic Caesar cipher to decrypt and encrypt some messages, and a... Morelso discover the cipher’s flaw and how to improve upon it. Less

  • LevelBeginner
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Upper Elem: Drawing and Scratch

Create a drawing app in Scratch, which others can use to create their own unique artwork! Using events and loops, students will code and tes... Moret a program that receives user input to create colorful artwork. Less

  • LevelBeginner
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Lower Elem: Program an Adaptation: Camouflage

Use code blocks to animate your own story in ScratchJr! Students will learn the basics of events and sequences in programming as they use sy... Morembolic blocks to code their characters. Less

  • LevelBeginner
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Lower Elem: Training AI Using Data

In this lesson, students will explore, understand, and model how artificial intelligence is trained with data to make predictions!

  • LevelBeginner
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Upper Elem: Training AI Using Data

Students will explore, understand, and model how artificial intelligence is trained with data to make predictions!

  • LevelBeginner
Lesson Plan

What is Hour of CodeTM ?

Hour of Code is a nationwide initiative by Computer Science Education Week and Code.org to introduce millions of students to one hour of computer science and computer programming. Get started with your hour of code today on CodeHS.

CodeHS Resources

Choosing the Right Tutorial

Need help picking a tutorial? Use this chart to help you choose the right tutorial for your students.

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Coding in the Wild

Learn about applications of coding and computer science from various industry professionals.

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What is CodeHS?

Discover more about CodeHS and learn about the various tools and resources offered by CodeHS.

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After Hour of Code Resources

Teacher Guide

Interested in continuing to teach computer science in your classroom? Check out this guide for what to do next.

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Admin Guide

Learn how to bring a full computer science pathway to your school or district.

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Parent Guide

Find out how you can help bring more computer science education to your children's schools.

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