Acellus Academy
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High School  |  Middle School  |  Elementary

Tutoring Program for High School

 Learn at your own pace with our interactive online courses

 The program provides tutoring resources for struggling students

 Acellus courses are also ideal for home school students

Sample Lessons Acellus Reviews How It Works Enroll Now

Acellus High School Courses

You may select up to 6 courses for your student to take at a time.


  • Algebra I
  • Advanced Algebra I
  • Advanced Algebra I-Spanish
  • Algebra I - Spanish
  • Algebra I-SE*
  • Geometry
  • Geometry-SE*
  • Algebra II
  • Algebra II-SE*
  • Trigonometry
  • Pre-Calculus
  • AP Calculus AB
  • AP Calculus AB Exam Prep
  • AP Calculus BC
  • College Exam Math Prep
  • FUNdamental Math
  • FUNdamental Math-Spanish
  • Pre-Algebra-SE*
  • Integrated Mathematics I
  • Integrated Mathematics II
  • Integrated Mathematics III
  • High School Math I-SE*
  • High School Math II-SE*
  • High School Math III-SE*
  • High School Math IV-SE*
  • H.S. Remedial Math I
  • H.S. Remedial Math II
  • H.S. Remedial Math III
  • H.S. Remedial Math IV
  • Algebra I - Credit Recovery - Semester I
  • Algebra I - Credit Recovery - Semester II
  • Geometry - Credit Recovery - Semester I
  • Geometry - Credit Recovery - Semester II

Language Arts/Reading:

  • English I
  • English II
  • English III
  • English IV
  • AP English Literature and Composition
  • AP English Language and Composition
  • High School Language Arts I-Remedial
  • High School Language Arts II-Remedial
  • Discover English - High School Part I (ESL)

Fine Arts:

  • Music Appreciation
  • AP Music Theory
  • AP Studio Art - Drawing


  • High School Health
  • Medical Terminology

Foreign Languages:

  • Discover Spanish


  • Physical Science
  • General Biology
  • Honors Biology
  • AP Biology
  • General Chemistry
  • Honors Chemistry
  • AP Chemistry
  • General Physics
  • Honors Physics
  • AP Physics I
  • High School Remedial Science

Career & Technical Education:

  • Business Management
  • Electrical Technology I
  • HVAC-R I
  • Information Management I
  • Information Management II
  • Medical Terminology
  • Plumbing Technology I
  • Plumbing Technology II
  • Principles of Business, Marketing, and Finance
  • Investigating Careers
  • College and Career Readiness

History/Social Studies:

  • US History I
  • US History II
  • AP US History
  • World History I
  • World History II
  • World History SE*
  • US Government
  • Economics
  • Geography
  • Personal Finance
  • Psychology
  • AP Psychology
  • High School Social Studies-SE*

High School Equivalency Exam Prep:

  • HS Exam Prep - Math
  • HS Exam Prep - Social Studies
  • HS Exam Prep - Language Arts
  • HS Exam Prep - Science

*SE indicates that the course has been designed to meet the needs of special education students.

Watch Sample Lessons

Select the video thumbnails below to view sample lessons from Acellus Middle School courses.


Lesson: Circle Graphs
» Watch Lesson

Physical Science

Lesson: Law of Conservation of Mass
» Watch Lesson

H.S. English I

Lesson: The Gift of the Magi
» Watch Lesson

US History I

Lesson: Fighting Begins (Lexington & Concord)
» Watch Lesson

Algebra I

Lesson: Algebraic Expressions
» Watch Lesson

General Biology

Lesson: Cell Membranes
» Watch Lesson

H.S. English II

Lesson: Elements of Persuasive Speaking
» Watch Lesson

World History I

Lesson: Rise of the Roman Empire
» Watch Lesson

General Chemistry

Lesson: Scientific Notation
» Watch Lesson

American Literature

Lesson: Free Verse Poetry
» Watch Lesson

AP Calculus

Lesson: Polynomial Functions
» Watch Lesson

General Physics

Lesson: Magnetic Forces
» Watch Lesson

College Prep Eng.

Lesson: Sentence Structure
» Watch Lesson

US Government

Lesson: Domestic & Foreign Policy
» Watch Lesson

Acellus Reviews

Read the stories below to see how Acellus transforms learning for students.

How Acellus Works

The Technology Behind the Success

Acellus is a computer-based learning system that has changed online education as we know it today. Acellus is the only online learning system that utilizes I2 (Intelligent Interaction), which technology enables it to cater the educational content to the individual skill set of each student through customized, personal instruction. The end result is students that were struggling, and at risk of dropping out, soon are able to fill in the gaps needed for success, and over a short period of time gain back the confidence needed to succeed in school, the workforce, and life.

Acellus courses are taught via tiered video instruction – each course is broken up into individual concepts, and each concept has multiple videos available. Acellus is able to customize the course to the individual pace and level of each student. As the student progresses through the course, every response is recorded and monitored, and through I2 technology, personalized help videos are delivered right when the student needs assistance in a concept.

Acellus utilizes I2 (Intelligent Interaction), to provide customized, personal instruction for each student.

VIEW: Acellus Brochure

What makes Acellus courses so engaging?

Acellus courses are taught by some of America's greatest teachers. These instructors have expertise in conveying knowledge, and even "hard to grasp" concepts, through video instruction. Through the combination of excellent instruction and immediate feedback, students are quickly able to start experiencing success within their coursework.

Swiss Cheese Problems
Find the Holes in Your Student's Knowledge

In Acellus, we create special problems for the purpose of identifying where a student has a hole in their background knowledge that's making it hard for them to learn a particular concept. This special kind of a problem in Acellus we call a "Swiss Cheese Problem," because it helps us find holes in a student's understanding.

VIDEO: Swiss Cheese Problems
Five-Star Courses

Acellus has launched a new initiative to create courses that are "five star" in the way that they help students grasp and master concepts. The lessons are filmed in a diversity of locations with only the best and most qualified instructors, keeping them fun and exciting so that both students and onsite teachers will rate the courses as 5 stars.

VIDEO: Five-Star Courses
Intuitive Student Interface

Students are able to access Acellus courses through the intuitive student interface. After logging in, they are able to select from their list of classes. Acellus takes them right to their current position in the course they have been enrolled in, and automatically marks their attendance for the class.

Students can see the progress they are making in each class, and their score for each class. The Acellus messaging tool allows students to easily interact with their parent. Students are able to access Acellus via the web, allowing them to work wherever they have Internet access.

VIDEO: The Student Experience
Help Videos

Special help videos are integrated into the course content for concepts students have difficulty with. These videos not only help the student master the content, but provide the student with "real world" scenarios, creating a meaningful context for obscure concepts.

SAMPLE HELP VIDEO: Understanding Probability

A Few Reasons Why Parents Love Acellus

Self-paced Learning
Students can work independently and receive personalized instruction to help them master each concept.

Live Monitoring
Watch your student's progress real-time from any mobile device or computer.

Automatic Recordkeeping
Acellus automatically compiles scores, progress, and hours worked into printable reports.

About Acellus Academy

A Program of the International Academy of Science

Acellus is the fastest growing learning system in America. The program is used by over one million students at schools in every U.S. state.

MISSION ACELLUS: Watch the Video

Acellus Academy is a program of the International Academy of Science that was created to provide tutoring support to students who are struggling at school. The program is also ideal for home school students.

The International Academy of Science is a not-for-profit, 501(c)3 organization. Through grants and other funding sources, the International Academy of Science is able use master teachers, who are experts in their field of knowledge, to develop the Acellus courses. These grants also cover most of the costs that are associated with creating and maintaining the courseware. This allows the Academy to provide Acellus courses to families at a fraction of the cost that most online courseware providers charge.

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