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How Career & College Prep Works
Career Fields & Courses
Career & College Services for High School
Why Choose K12
Adult Learning
K12 for Business
K12 for School Districts
See All Products
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866.968.7512
Online adult education to earn your high school diploma
The Keystone School
Earning your high school diploma is within reach. Keystone provides a convenient adult education program that fits your schedule with online, self-paced courses for students older than 18. Experience the K12-powered approach with personalized learning that’s suited to your needs with the convenience you desire.
And our career-focused approach to helping you earn your high school diploma is a great option if you plan to go directly into the workforce or have already started your career.
Adult Education Programs for Lifelong Learners
Explore the benefits of online adult education programs powered by K12 to see if they’re a good fit for your goals.
A Flexible Approach
We’re committed to meeting the needs of diverse learners with personalized learning experiences wherever there’s an internet connection. Earn your diploma in as little as five months, depending on credits needed to graduate. Mastery-based courses allow you to retake assessments until you’ve mastered the material. Enroll any time and get started immediately.
Available Support
A free transcript evaluation prior to enrollment helps you understand how many credits you’ll need to graduate and a timeline to help you get there. As soon as you enroll, you’ll meet with your Graduation Advisor who provides you with one-to-one support throughout your enrollment. Detailed planning provides structure to keep you on track and on pace to reach your goals.
Career Planning
K12-powered adult education programs are designed with lifelong learning in mind. If you’re in the middle of a career, or looking to begin one, resources like resume writing, interview tips, and more are available.