Please enable JavaScript to use CodeHS

CodeHS Logo
  • Products

    Elementary | Middle

    CodeHop Standards aligned coding for districts Tynker Gamified coding and apps Typing Easy to use typing for schools

    Middle | High

    CodeHS Pro Comprehensive CS platform Certifications Industry based credentials for CTE Cyber Range Interactive environment for cybersecurity labs

    AI

    AI Creator Easily create lessons with AI Bool AI coding and prototyping

    Use Cases

    Districts Schools Teachers
  • Products Explore what CodeHS has to offer for districts, schools, and teachers
    • Elementary | Middle
    • CodeHopStandards aligned coding for districts
    • TynkerGamified coding and apps
    • TypingEasy to use typing for schools
    • Middle | High
    • CodeHS ProComprehensive CS platform
    • CertificationsIndustry based credentials for CTE
    • Cyber RangeInteractive environment for cybersecurity labs
    • AI
    • AI CreatorEasily create lessons with AI
    • BoolAI coding and prototyping
    • Use Cases
    • DistrictsComprehensive solutions for districts
    • SchoolsTools and resources for schools
    • TeachersEmpower educators in the classroom
  • Platform
    • Assignments
      Create & configure your course assignments
    • Classroom
      Manage & organize your class with customizable settings
    • Grading
      Streamline your grading workflow.
    • Data
      Track & analyze student assessments & progress data
    • Write Code
      Write, run, & debug code all in a web-based IDE
    • Integrations
      Connect CodeHS to your district’s educational platform
  • Platform
    • Assignments
      Create & configure your course assignments
    • Classroom
      Manage & organize your class with customizable settings
    • Grading
      Streamline your grading workflow.
    • Data
      Track & analyze student assessments & progress data
    • Write Code
      Write, run, & debug code all in a web-based IDE
    • Integrations
      Connect CodeHS to your district’s educational platform
  • Curriculum

    Computer Science Curriculum

    Customizable K-12 Computer Science Curriculum

    Overview ›
    • Course Catalog
      • AP Courses
      • Interdisciplinary
      • Hour of Code
      • Spanish Courses
    • K-12 Pathways
      • Elementary
      • Middle School
      • High School
    • Standards
    • States
    • Supplemental Materials
      • Practice
      • Tutorials
      • Digital Textbooks
  • Curriculum Customizable K-12 Computer Science Curriculum
    • Course Catalog
      • AP Courses
      • Interdisciplinary
      • Hour of Code
      • Spanish Courses
    • K-12 Pathways
      • Elementary
      • Middle School
      • High School
    • States
    • Standards
    • Practice
    • Tutorials
    • Digital Textbooks
  • Professional DevelopmentPD

    Professional Development

    Online & In-Person Training for Teachers

    Overview ›
    • Online PD Courses
    • In-Person & Virtual Workshops
    • Free PD Events
    • Teacher Certification Prep
    • Microcredentials
    • PD Membership
  • Professional Development Online & In-Person Training for Teachers
    • Professional Development
    • Online PD Courses
    • In-Person & Virtual Workshops
    • Free PD Events
    • Teacher Certification Prep
    • Microcredentials
  • Online IDE

    Online IDE

    Write, Run, & Debug Code in an Online IDE

    Overview ›
    • JavaScript
    • Python
    • Java
    • HTML
    • C++
    • SQL
  • Online IDE Write, Run, & Debug Code in an Online IDE
    • Online IDE
    • JavaScript
    • Python
    • Java
    • HTML
    • C++
    • SQL
    • Karel
  • Resources
    • About
    • Privacy Center
    • Case Studies
    • States
    • Testimonials
    • Tweets
    • Read Write Code Blog
    • Coding in the Wild
    • Knowledge Base
    • Student Projects
    • Career Center
  • Resources
    • About
    • Privacy Center
    • Case Studies
    • States
    • Testimonials
    • Tweets
    • Read Write Code Blog
    • Coding in the Wild
    • Knowledge Base
    • Student Projects
    • Career Center
  • Request a Quote
  • Log In
  • Sign Up

New Sandbox Program

Click on one of our programs below to get started coding in the sandbox!

Java

JavaScript

Python 3

HTML

Karel

Turtle

View All

  2. Webinars
  3. Teaching Python Workshop Series: 2D Lists

Teaching Python Workshop Series: 2D Lists

February 22, 2024 · 4:00pm - 4:25pm CT

Watch on YouTube Register for Webinar

Upcoming Webinars

Join live sessions for fresh classroom ideas, implementation tips, and practical PD.

  • Mar 17, 2026
    Systems for Success: Designing a Districtwide Vision for K–12 CS & CTE Pathways
  • Mar 19, 2026
    Bringing AP Cybersecurity to Your School Next Year
  • Mar 26, 2026
    Preparing Students for the AP CSA Exam
  • Apr 2, 2026
    Preparing Students for the AP CSP Exam
  • Apr 11, 2026
    2026 CodeHS Virtual Teacher Conference
View Upcoming Free PD Browse Webinar Archive
CodeHS Logo
CodeHS Twitter CodeHS Threads

Products

  • Coding LMS
  • Online IDE
  • CodeHS Pro
  • Computer Science Curriculum
  • Certifications
  • Professional Development
  • AI Creator
  • Typing
  • Cyber Range

Use Cases

  • District
  • Schools
  • Teachers

Platform

  • Assignments
  • Classroom Management
  • Grading
  • Data
  • Write Code
  • Integrations
  • AI Tools
  • Academic Integrity

Curriculum

  • Course Catalog
  • Project Catalog
  • K-12 Pathways
  • AP Courses
  • Elementary
  • State Courses
  • Spanish Courses
  • Standards
  • Hour of Code
  • Practice
  • Tutorials
  • Digital Textbooks
  • AP CSA Hub
  • AI Curriculum

PD

  • Online PD Courses
  • In-Person PD Workshops
  • Virtual PD Workshops
  • Free PD Workshops
  • Teacher Certification Prep
  • Microcredentials
  • PD Membership

Programming Languages

  • New Sandbox Program
  • Javascript
  • Python
  • Java
  • HTML
  • C++
  • SQL
  • Karel

Resources

  • Case Studies
  • States
  • Testimonials
  • Tweets
  • CodeHS Blog
  • Read Write Code Book
  • Knowledge Base
  • Webinars
  • Student Projects
  • Career Center
  • Student Alumni

CodeHS Has Everything

  • Grading
  • Differentiation
  • Elementary
  • Assessments
  • Academic Integrity
  • Online IDE
  • Physical Computing
  • AP Courses

Company

  • About
  • Team
  • Careers
  • Privacy Center
  • Terms
  • Privacy Policy
  • Security
  • Accessibility

Products

  • Coding LMS
  • Online IDE
  • CodeHS Pro
  • Computer Science Curriculum
  • Certifications
  • Professional Development
  • AI Creator
  • Typing
  • Cyber Range

Platform

  • Assignments
  • Classroom
  • Grading
  • Data
  • Write Code
  • Integrations
  • AI Tools
  • Academic Integrity

PD

  • Online PD Courses
  • In-Person PD Workshops
  • Virtual PD Workshops
  • Teacher Certification Prep
  • Microcredentials

Resources

  • Case Studies
  • States
  • Testimonials
  • Tweets
  • CodeHS Blog
  • Read Write Code Book
  • Knowledge Base
  • Webinars
  • Student Projects
  • Career Center
  • Student Alumni

Use Cases

  • District
  • Schools
  • Teachers

Curriculum

  • Course Catalog
  • Project Catalog
  • AP Courses
  • Elementary
  • State Courses
  • Spanish Courses
  • Standards
  • Practice
  • Tutorials
  • Digital Textbooks
  • AP CSA Hub

Programming Languages

    New Sandbox Program
  • Javascript
  • Python
  • Java
  • HTML
  • C++
  • SQL
  • Karel

CodeHS Has Everything

  • Grading
  • Differentiation
  • Elementary
  • Assessments
  • Academic Integrity
  • Online IDE
  • Physical Computing
  • AP Courses

Company

  • About
  • Team
  • Careers
  • Privacy Center
  • Terms
  • Privacy Policy
  • Security
  • Accessibility
CodeHS Certified Educators CodeHS Educator Facebook Group CodeHS Store