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
Platform
Platform
Curriculum
Computer Science Curriculum

Customizable K-12 Computer Science Curriculum
Overview
Curriculum Customizable K-12 Computer Science Curriculum
Professional DevelopmentPD
Professional Development

Online & In-Person Training for Teachers
Overview ›
Professional Development Online & In-Person Training for Teachers
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
Resources

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

Curriculum
Course Catalog
Arkansas Programming I
Explore
19. Python Level 1 Certification Practice
19.4 Practice #4: Strings

Arkansas Programming I (Python) (2020)

View Syllabus Overview

Lesson 19.4 Practice #4: Strings

Activities

These are all the activities included in the lesson

19.4.1 Quiz: Strings

19.4.2 Practice #4 Reflection

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