Everything

Science projects Beginner robot

Binary numbers (unit)

Difficulty 1/5 On other sites Screen-free lesson

A CS Unplugged unit with several hands-on, screen-free lessons about binary numbers.

Science projects Beginner robot

Codes for letters using binary representation

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 45 minutes), part of the 'Binary numbers' unit.

Digital art Beginner robot

Colour by numbers

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 45 minutes), part of the 'Image Representation' unit.

Science projects Beginner robot

Divide and conquer

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 30 minutes), part of the 'Searching algorithms' unit.

Science projects Beginner robot

Error detection and correction (unit)

Difficulty 1/5 On other sites Screen-free lesson

A CS Unplugged unit with several hands-on, screen-free lessons about error detection and correction.

Science projects Beginner robot

Finding shapes

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Kidbots' unit with geometry (ages 5-7). For an adult to run with children.

Science projects Beginner robot

Fitness unplugged

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 45 minutes), part of the 'Kidbots' unit.

Science projects Beginner robot

Growing into a butterfly

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Sorting networks' unit with biology (ages 5-7). For an adult to run with children.

Science projects Beginner robot

How binary digits work

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 45 minutes), part of the 'Binary numbers' unit.

Science projects Beginner robot

How many guesses?

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 30 minutes), part of the 'Searching algorithms' unit.

Science projects Beginner robot

Image Representation (unit)

Difficulty 1/5 On other sites Screen-free lesson

A CS Unplugged unit with several hands-on, screen-free lessons about image representation.

Science projects Beginner robot

Investigating variations using the Sorting Network

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 30 minutes), part of the 'Sorting networks' unit.

Science projects Beginner robot

Kidbots (unit)

Difficulty 1/5 On other sites Screen-free lesson

A CS Unplugged unit with several hands-on, screen-free lessons about kidbots.

Science projects Beginner robot

Move to a number

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Kidbots' unit with numeracy (ages 5-7). For an adult to run with children.

Science projects Beginner robot

Moving in a shape

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Kidbots' unit with geometry (ages 5-7). For an adult to run with children.

Science projects Beginner robot

Parity magic

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 30 minutes), part of the 'Error detection and correction' unit.

Science projects Beginner robot

Reinforcing numeracy through a Sorting Network

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 45 minutes), part of the 'Sorting networks' unit.

Science projects Beginner robot

Reinforcing sequencing in binary number systems

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 60 minutes), part of the 'Binary numbers' unit.

Science projects Beginner robot

Rescue Mission

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 30 minutes), part of the 'Kidbots' unit.

Science projects Beginner robot

Retelling a story

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Sorting networks' unit with speaking (ages 5-7). For an adult to run with children.

Science projects Beginner robot

Searching algorithms (unit)

Difficulty 1/5 On other sites Screen-free lesson

A CS Unplugged unit with several hands-on, screen-free lessons about searching algorithms.

Science projects Beginner robot

Sorting networks (unit)

Difficulty 1/5 On other sites Screen-free lesson

A CS Unplugged unit with several hands-on, screen-free lessons about sorting networks.

Science projects Beginner robot

Squeezing pictures into less space

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 5-7 (about 45 minutes), part of the 'Image Representation' unit.

Science projects Beginner robot

Storytelling

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Kidbots' unit with speaking (ages 5-7). For an adult to run with children.

Science projects Beginner robot

Binary Art

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Binary numbers' unit with art (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Binary Candles or Normal Candles on your Cake

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Binary numbers' unit with writing (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Binary Name Necklaces

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Binary numbers' unit with art (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Binary Patterns

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Binary numbers' unit with art (ages 8-10). For an adult to run with children.

Digital art Beginner robot

Binary Tunes

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Binary numbers' unit with music (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Codes for letters using binary representation

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 45 minutes), part of the 'Binary numbers' unit.

Science projects Beginner robot

Divide and conquer

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 30 minutes), part of the 'Searching algorithms' unit.

Digital art Beginner robot

Drama or video activity

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Searching algorithms' unit with drama, art (ages 8-10). For an adult to run with children.

Science projects Beginner robot

How binary digits work

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 45 minutes), part of the 'Binary numbers' unit.

Programming languages Beginner robot

How binary digits work: programming challenges

Difficulty 1/5 On other sites Screen-free lesson

Programming challenges (Scratch, Python or blocks) to go with the 'How binary digits work' lesson, from the 'Binary numbers' unit. Best done with a grown-up.

Science projects Beginner robot

How many guesses?

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 30 minutes), part of the 'Searching algorithms' unit.

Science projects Beginner robot

Instructional writing

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Error detection and correction' unit with writing (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Investigating variations using the Sorting Network

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 30 minutes), part of the 'Sorting networks' unit.

Digital art Beginner robot

Music activity

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Searching algorithms' unit with music (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Parity magic

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 30 minutes), part of the 'Error detection and correction' unit.

Programming languages Beginner robot

Parity magic: programming challenges

Difficulty 1/5 On other sites Screen-free lesson

Programming challenges (Scratch, Python or blocks) to go with the 'Parity magic' lesson, from the 'Error detection and correction' unit. Best done with a grown-up.

Science projects Beginner robot

Product code check digits

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 30 minutes), part of the 'Error detection and correction' unit.

Programming languages Beginner robot

Product code check digits: programming challenges

Difficulty 1/5 On other sites Screen-free lesson

Programming challenges (Scratch, Python or blocks) to go with the 'Product code check digits' lesson, from the 'Error detection and correction' unit. Best done with a grown-up.

Science projects Beginner robot

Quick card flip magic

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Error detection and correction' unit with numeracy (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Reinforcing numeracy through a Sorting Network

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 45 minutes), part of the 'Sorting networks' unit.

Science projects Beginner robot

Reinforcing sequencing in binary number systems

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 60 minutes), part of the 'Binary numbers' unit.

Science projects Beginner robot

Sending a rocket to Mars

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 30 minutes), part of the 'Kidbots' unit.

Programming languages Beginner robot

Sending a rocket to Mars: programming challenges

Difficulty 1/5 On other sites Screen-free lesson

Programming challenges (Scratch, Python or blocks) to go with the 'Sending a rocket to Mars' lesson, from the 'Kidbots' unit. Best done with a grown-up.

Science projects Beginner robot

The Great Number Hunt (Sorted)

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 45 minutes), part of the 'Searching algorithms' unit.

Science projects Beginner robot

The Great Number Hunt (Unsorted)

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 30 minutes), part of the 'Searching algorithms' unit.

Science projects Beginner robot

The Modulo operator Unplugged

Difficulty 1/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 8-10 (about 30 minutes), part of the 'Kidbots' unit.

Programming languages Beginner robot

The Modulo operator Unplugged: programming challenges

Difficulty 1/5 On other sites Screen-free lesson

Programming challenges (Scratch, Python or blocks) to go with the 'The Modulo operator Unplugged' lesson, from the 'Kidbots' unit. Best done with a grown-up.

Science projects Beginner robot

What if?

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Error detection and correction' unit with writing (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Where is my hat?

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Searching algorithms' unit with writing (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Whose cake is it

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Binary numbers' unit with writing (ages 8-10). For an adult to run with children.

Science projects Beginner robot

Word study activity

Difficulty 1/5 On other sites Screen-free lesson

A classroom activity linking the 'Error detection and correction' unit with word study (ages 8-10). For an adult to run with children.

Programming languages Beginner robot

Build a simple 2D physics engine for JavaScript games

Difficulty 2/5 On other sites Build project

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Beginner robot

Information Retrieval

Difficulty 2/5 On other sites Resource list

Learn to develop your own search engine.

Science projects Beginner robot

STEAM

Difficulty 2/5 On other sites Resource list

Supplements for specific science, technology, engineering, arts, and math (STEAM) courses across all grade levels.

Science projects Beginner robot

Tutorials

Difficulty 2/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Beginner robot

Tutorials

Difficulty 2/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Intermediate alien

Binary search trees

Difficulty 3/5 Do it here Screen-free lesson

A hands-on, screen-free CS Unplugged lesson for ages 11-13 (about 45 minutes), part of the 'Data structures for searching' unit.

Science projects Intermediate alien

Data structures for searching (unit)

Difficulty 3/5 On other sites Screen-free lesson

A CS Unplugged unit with several hands-on, screen-free lessons about data structures for searching.

Science projects Intermediate alien

Education

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Intermediate alien

Math

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Intermediate alien

Spanish

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Intermediate alien

Conversational AI

Difficulty 3/5 On other sites Resource list

Build awesome chatbots and digital assistants.

Science projects Intermediate alien

Data Science

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Programming languages Intermediate alien

Data Science

Difficulty 3/5 On other sites Resource list

Data analysis and machine learning.

Science projects Intermediate alien

Functional Programming

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Digital art Intermediate alien

Generative AI

Difficulty 3/5 On other sites Resource list

Automatically generates a wide range of unique content in text, image, and audio format.

Science projects Intermediate alien

Linguistics

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Programming languages Intermediate alien

Mad Science npm Packages

Difficulty 3/5 On other sites Resource list

Impossible sounding projects that exist.

Science projects Intermediate alien

ML with Ruby

Difficulty 3/5 On other sites Resource list

Learning, implementing, and applying Machine Learning using Ruby.

Science projects Intermediate alien

Naming

Difficulty 3/5 On other sites Resource list

Guides for naming things in computer science.

Science projects Intermediate alien

NLP with Ruby

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Intermediate alien

Open Source Society University

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Intermediate alien

Static Analysis & Code Quality

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Intermediate alien

University Courses

Difficulty 3/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Programming languages Advanced astronaut

3D Physics Engine Tutorial

Difficulty 5/5 On other sites Build project

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Advanced astronaut

Computer Vision

Difficulty 5/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Advanced astronaut

Core ML Models

Difficulty 5/5 On other sites Resource list

Models for Apple's machine learning framework.

Science projects Advanced astronaut

Deep Learning

Difficulty 5/5 On other sites Resource list

Neural networks.

Science projects Advanced astronaut

Deep Vision

Difficulty 5/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Advanced astronaut

Empirical Software Engineering

Difficulty 5/5 On other sites Resource list

Evidence-based research on software systems.

Programming languages Advanced astronaut

H2O

Difficulty 5/5 On other sites Resource list

Open source distributed machine learning platform written in Java with APIs in R, Python, and Scala.

Science projects Advanced astronaut

JAX

Difficulty 5/5 On other sites Resource list

Automatic differentiation and XLA compilation brought together for high-performance machine learning research.

Programming languages Advanced astronaut

Julia

Difficulty 5/5 On other sites Resource list

High-level dynamic programming language designed to address the needs of high-performance numerical analysis and computational science.

Science projects Advanced astronaut

Machine Learning

Difficulty 5/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Advanced astronaut

Natural Language Generation

Difficulty 5/5 On other sites Resource list

Generation of text used in data-to-text, conversational agents, and narrative generation applications.

Science projects Advanced astronaut

Papers

Difficulty 5/5 On other sites Resource list

The most cited deep learning papers.

Science projects Advanced astronaut

Quantum Computing

Difficulty 5/5 On other sites Resource list

Computing that utilizes quantum mechanics and qubits on quantum computers.

Science projects Advanced astronaut

Question Answering

Difficulty 5/5 On other sites Resource list

The science of asking and answering in natural language with a machine.

Science projects Advanced astronaut

Software Engineering for Machine Learning

Difficulty 5/5 On other sites Resource list

From experiment to production-level machine learning.

Science projects Advanced astronaut

Speech and Natural Language Processing

Difficulty 5/5 On other sites Resource list

A free resource picked by the open-source community. Open it to see what's inside.

Science projects Advanced astronaut

TensorFlow

Difficulty 5/5 On other sites Resource list

Library for machine intelligence.

Science projects Advanced astronaut

TensorFlow Lite

Difficulty 5/5 On other sites Resource list

Framework that optimizes TensorFlow models for on-device machine learning.

Programming languages Advanced astronaut

TensorFlow.js

Difficulty 5/5 On other sites Resource list

WebGL-accelerated machine learning JavaScript library for training and deploying models.

Science projects Advanced astronaut

Theoretical Computer Science

Difficulty 5/5 On other sites Resource list

The interplay of computer science and pure mathematics, distinguished by its emphasis on mathematical rigour and technique.

Science projects Advanced astronaut

XAI

Difficulty 5/5 On other sites Resource list

Providing insight, explanations, and interpretability to machine learning methods.