Draft:Acellus
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Comment: Draft is largely comprised of content from Acellus and the related IAS. Apart perhaps from the Honolulu Civil Beat content and Californian Department of Education there is zero significant coverage in reliable independent secondary sources. Paul W (talk) 10:21, 17 September 2026 (UTC)
- Comment: In accordance with the Wikimedia Foundation's Terms of Use, I disclose that I have been paid by my employer for my contributions to this article. Suckthezuck (talk) 18:57, 16 September 2026 (UTC)
| Founded | 2001 |
|---|---|
| Founder | Roger Billings |
| Type | Online education |
| Headquarters | Kansas City, Missouri, United States |
| Products | Acellus Learning Accelerator, Acellus Academy, Power Homeschool |
| Website | www |
Acellus is an American online educational system providing video-based and interactive coursework for students in kindergarten through twelfth grade. It was developed by the International Academy of Science, a nonprofit organization based in Kansas City, Missouri, and was launched in 2001.[1][2]
The Acellus system is used as online courseware by schools and is also the instructional platform used by Acellus Academy, an online private K–12 school, and Power Homeschool, a curriculum service for independently homeschooled students.[3]
Acellus primarily delivers instruction through recorded video lessons followed by interactive problems, assessments, and examinations. The organization describes its system as using adaptive technologies, including Vectored Instruction and Prism Diagnostics, to identify gaps in a student's understanding and provide additional instruction.[2]
Acellus attracted significant public attention during the COVID-19 pandemic, when school systems expanded their use of online learning. In 2020, educators and parents raised concerns about material in some Acellus courses that they considered racist, sexist, culturally insensitive, age-inappropriate, or academically inadequate. The California Department of Education issued a warning to school districts about Acellus content,[4] and the Hawaii State Board of Education subsequently voted to discontinue the system in Hawaii public schools after a state review.[5]
History
[edit]Acellus was developed by the International Academy of Science (IAS), a nonprofit organization founded in 1985.[1] IAS states that it was founded by Geoffrey Pardoe, Willis Hawkins, Michael Laughton, and Roger Billings.[1]
According to Acellus and the International Academy of Science, the Acellus Learning System was launched in 2001 as an initiative intended to improve student achievement, particularly in mathematics and science.[6] The system subsequently expanded beyond mathematics and science to include courses across the K–12 curriculum.
Acellus Academy was established in 2013 as an online private school using the Acellus curriculum.[6] Unlike schools that license Acellus courseware, students enrolled in Acellus Academy are enrolled directly in a private school and can earn an Acellus Academy high school diploma after completing its graduation requirements.[7]
During the COVID-19 pandemic in 2020, the use of Acellus increased as public schools sought remote-learning systems. In Hawaii, Acellus expanded from a program previously used primarily for purposes such as credit recovery into a major distance-learning platform.[8]
Educational system
[edit]Learning model
[edit]Acellus courses are primarily self-paced. Instruction is delivered through recorded video lessons supplemented by multimedia, animations, interactive questions, practice activities, and assessments.[9]
The platform automatically records student progress and assessment results. Parents or educators can monitor a student's progress through the system.
Acellus describes its instructional approach as a "learning accelerator", in which software analyzes student performance and adjusts instruction when a student demonstrates difficulty with a concept.[2]
Vectored Instruction
[edit]Acellus uses a system it calls Vectored Instruction. According to the organization, when the system detects that a student is struggling with a concept, it can provide additional instructional material designed to address prerequisite concepts or gaps in knowledge.[2]
The term is a proprietary description used by Acellus for its adaptive-learning approach.
Prism Diagnostics
[edit]Acellus also describes a technology called Prism Diagnostics, which analyzes student responses in an attempt to identify weaknesses in prerequisite knowledge. The diagnostic information is used by the platform to determine when additional instruction may be needed.[10]
Curriculum
[edit]Acellus provides courses covering elementary, middle-school and high-school levels. Subjects include mathematics, science, language arts and reading, social studies, foreign languages, fine arts, technology, social and emotional health, and career and technical education.[11]
High-school courses offered through the system include Algebra I and II, geometry, trigonometry, pre-calculus, biology, chemistry, physics, English, American and British literature, history, foreign languages, technology courses, and career and technical education courses.[12]
The system also offers Advanced Placement courses. Acellus states that its AP courses have been audited through the College Board AP Course Audit process.[13]
Some Acellus high-school courses have also received University of California A–G approval, and some courses are listed as eligible through the National Collegiate Athletic Association eligibility process.[13]
Acellus Academy
[edit]Acellus Academy is a private online K–12 school that uses the Acellus educational system as its primary instructional platform. It was established in 2013.[6]
Acellus Academy is distinct from the Acellus Learning Accelerator itself. The Learning Accelerator is courseware that can be licensed by schools, while Acellus Academy enrolls students directly as a school.[3]
The school enrolls students throughout the United States and internationally and permits enrollment throughout the year because courses are self-paced.[9]
Accreditation
[edit]Acellus Academy is accredited by the Accrediting Commission for Schools of the Western Association of Schools and Colleges (ACS WASC).[14]
The ACS WASC directory lists Acellus Academy as a K–12 non-public school in Kansas City, Missouri, with accreditation extending through 2030.[14]
Accreditation applies to Acellus Academy as a school and should not be confused with accreditation of Acellus courseware generally. WASC officials have noted that WASC accredits schools and programs rather than individual curricula.[8]
High school graduation
[edit]Acellus Academy offers standard and honors high-school graduation pathways.
The standard diploma pathway requires 24 credits. The school's published requirements include coursework in English language arts, social studies, mathematics, science, fine arts, health and physical education, practical arts, and electives.[15]
The honors pathway requires 26 credits and a minimum 3.0 grade-point average and includes additional mathematics and foreign-language requirements.[15]
According to the Academy's enrollment policies, students seeking an Acellus Academy diploma must earn at least six credits through Acellus Academy, including credits in the four core academic subject areas and two electives, remain enrolled and active for at least one year, and be at least 16 years old.[9]
Power Homeschool
[edit]Power Homeschool is a separate service that provides Acellus coursework to families independently homeschooling their children.
Unlike Acellus Academy, Power Homeschool is a curriculum provider rather than an accredited school. Parents using the service are responsible for operating their homeschool and complying with applicable state or local homeschool requirements.
The distinction between Power Homeschool and Acellus Academy is significant for high-school students because Power Homeschool does not function as the student's diploma-granting school, whereas students who satisfy Acellus Academy's graduation requirements may receive an Acellus Academy diploma.
Both services use Acellus instructional courseware.
Use in schools
[edit]Acellus Learning Accelerator is marketed to public, private, charter and other schools as online courseware. Schools can use the platform as a primary instructional resource or as a supplement to classroom teaching.[11]
The International Academy of Science has stated that Acellus has been used by thousands of schools in all 50 U.S. states and internationally.[2] These usage figures are claims by the organization and have varied over time.
Acellus has been used for applications including full-time online learning, blended learning, independent study, remediation, credit recovery, advanced coursework and supplemental instruction.
COVID-19 pandemic and increased use
[edit]Acellus received substantially increased attention in 2020 as schools moved instruction online during the COVID-19 pandemic.
In Hawaii, the state Department of Education expanded use of the program as a distance-learning option. By September 2020, approximately 80,000 Hawaii public-school students at nearly 188 schools were reportedly using Acellus.[8]
The rapid expansion also resulted in increased scrutiny of the program's curriculum.
Controversies
[edit]Concerns over instructional content
[edit]In 2020, parents, teachers and education officials raised concerns about content appearing in some Acellus lessons.
Reported examples included racial and cultural stereotypes, material considered sexist or age-inappropriate, inaccurate or oversimplified historical material, and a lesson in which a toy gun was used to demonstrate the sound of the letter "G".[16]
Complaints also concerned representations of Hawaiian history and cultural groups.[17]
California Department of Education warning
[edit]On September 21, 2020, California State Superintendent of Public Instruction Tony Thurmond issued a letter to county and district superintendents and charter-school administrators concerning Acellus.[4]
The California Department of Education said examples submitted to the department included what it described as racist depictions of Black Americans, a question perpetuating stereotypes about Muslims, and a lesson involving words and images associated with a firearm.[4]
The department reminded school districts that instructional materials used in California schools must comply with state requirements concerning representation based on race, ethnicity, gender, religion, disability, nationality and sexual orientation.[4]
Hawaii review
[edit]Acellus became particularly controversial in Hawaii, where its use expanded rapidly during pandemic-related school closures.
Before the large-scale implementation, Hawaii Department of Education curriculum specialists had reviewed portions of Acellus. Internal feedback reported by Honolulu Civil Beat included concerns that some lessons were remedial, simplistic or insufficiently rigorous.[8]
Following complaints from parents and educators, the Hawaii Department of Education organized a larger review involving 56 specialists in fields including curriculum, special education, English-language learning, Hawaiian education and civil-rights compliance.[5]
The team conducted 84 reviews covering more than 50 Acellus courses. According to reporting on the department's findings, approximately three-quarters of the reviewed K–12 courses received weak scores, and reviewers identified repetitive tasks with low cognitive demand as well as conflicts with state academic standards and Board of Education policies.[5]
In October 2020, the Hawaii Board of Education voted unanimously to discontinue Acellus by the end of the 2020–2021 school year.[5]
Some principals and parents opposed an immediate removal of Acellus, saying students were benefiting from the program and that schools had invested money and staff time in implementing it.[5]
Hawaii civil-rights and religion findings
[edit]A more extensive Hawaii Department of Education report released in November 2020 concluded that material identified during the review conflicted with policies concerning discrimination and religion.[18]
The review found examples involving race, national origin, gender, religion, ethnicity and socioeconomic status and also raised concerns about religious material appearing outside courses devoted to religion.[18]
The review additionally questioned whether portions of the curriculum were aligned with Hawaii academic standards.[18]
During the review process, Acellus removed or modified some material identified as problematic. Hawaii Department of Education officials stated that the vendor had removed or addressed content identified by its Civil Rights Compliance Branch.[18]
Academic rigor
[edit]Some education officials have also questioned the academic rigor of portions of Acellus.
During Hawaii's 2020 review, curriculum specialists described some sampled lessons as overly simple and repetitive and criticized some activities for emphasizing memorization rather than higher-order analysis.[8]
The subsequent statewide review found that many of the courses reviewed contained repetitive tasks characterized as having low cognitive demand.[5]
The findings concerned the particular courses and versions reviewed by Hawaii officials in 2020 and do not necessarily describe subsequent revisions to Acellus courseware.
Roger Billings
[edit]Acellus was created under the direction of American inventor and entrepreneur Roger Billings, who serves as president of the International Academy of Science.[19]
Billings has been involved in projects involving hydrogen energy, computer networking, cybersecurity and education. He developed the Acellus educational system as part of the International Academy of Science's educational initiatives.[19]
Because biographies published by organizations led by Billings are primary sources, claims concerning his inventions, accomplishments or historical role require independent reliable sources before being stated as fact in an encyclopedia article.
International Academy of Science
[edit]The International Academy of Science is the nonprofit organization associated with the development of Acellus. It was founded in 1985 and is headquartered in the Kansas City area.[1]
In addition to Acellus, the organization operates educational and scientific programs, including the Institute of Science and Technology.[1]
The organization describes its mission as advancing science, encouraging collaboration among scientists and applying scientific research to practical problems.[1]
See also
[edit]References
[edit]- 1 2 3 4 5 6 "About the Academy". International Academy of Science. Retrieved 16 September 2026.
- 1 2 3 4 5 "Acellus Learning Accelerator". Acellus. Retrieved 16 September 2026.
- 1 2 "Acellus Academy". Acellus. Retrieved 16 September 2026.
- 1 2 3 4 "Concerns Regarding Acellus Online Learning Program". California Department of Education. 21 September 2020. Retrieved 16 September 2026.
- 1 2 3 4 5 6 Lee, Suevon (15 October 2020). "Hawaii Board Of Education Votes To End Controversial Distance Learning Program". Honolulu Civil Beat. Retrieved 16 September 2026.
- 1 2 3 "About Us". Acellus Academy. Retrieved 16 September 2026.
- ↑ "Frequently Asked Questions". Acellus Academy. Retrieved 16 September 2026.
- 1 2 3 4 5 Lee, Suevon (14 September 2020). "Hawaii DOE's Distance Learning Tool 'Very, Very Questionable'". Honolulu Civil Beat. Retrieved 16 September 2026.
- 1 2 3 "Enrollment Information". Acellus Academy. Retrieved 16 September 2026.
- ↑ "International Academy of Science – Acellus". Acellus. Retrieved 16 September 2026.
- 1 2 "Acellus Offers Courses K-12". International Academy of Science. Retrieved 16 September 2026.
- ↑ "Acellus High School Courses" (PDF). Acellus. 2026. Retrieved 16 September 2026.
- 1 2 "Approvals & Affiliations". International Academy of Science. Retrieved 16 September 2026.
- 1 2 "WASC School Directory" (PDF). Accrediting Commission for Schools, Western Association of Schools and Colleges. Retrieved 16 September 2026.
- 1 2 "Online High School". Acellus Academy. Retrieved 16 September 2026.
- ↑ Lee, Suevon (24 August 2020). "Hawaii Schools Dump Distance Learning Program Over 'Racist' Content". Honolulu Civil Beat. Retrieved 16 September 2026.
- ↑ Lee, Suevon (2020). "'Equity Specialists' Are Reviewing Hawaii DOE's Problematic Online Learning Program". Honolulu Civil Beat. Retrieved 16 September 2026.
- 1 2 3 4 Lee, Suevon (2020). "DOE Report: Acellus Online Curriculum Violated Religion, Discrimination Policies". Honolulu Civil Beat. Retrieved 16 September 2026.
- 1 2 "Roger Billings Biography". International Academy of Science. Retrieved 16 September 2026.
External links
[edit]Category:Educational technology companies of the United States Category:Distance education institutions based in the United States Category:Online schools in the United States Category:Homeschooling in the United States Category:Educational organizations based in Missouri Category:Organizations based in Kansas City, Missouri Category:2001 establishments in Missouri
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