| 1001 Writing Projects for Students | — | Ela | Grades 3–12 | Traditional |
| ABeCeDarian Reading Program | The ABeCeDarian Company | Ela | Grades K–6 | Traditional |
| Abeka Language series | Abeka | Ela | Grades 3–12 | Traditional |
| A Beka Readers for grades 1 through 8 | Abeka | Ela | Grades 1–8 | Traditional |
| A Beka Spelling | — | Ela | Grades 1–12 | Traditional |
| AceReader | — | Ela | Grades 3–12 | Mastery Based |
| Adams-Gordon's Spelling Power | — | Ela | Grades 3–12 | Mastery Based |
| A Landscape with Dragons | Ignatius Press | Ela | Grades Pre-K–12 | Traditional |
| All About Spelling | All About Learning Press, Inc. | Ela | Grades 1–12 | Classical |
| All-in-One Straightforward English Series Master Book | Garlic Press | Ela | Grades 3–12 | Traditional |
| American and British Literature courses | Alpha Omega Publications | Ela | Grades 7–12 | Mastery Based |
| Amplify ELA | Amplify | Ela | Grades 6–8 | Blended |
| Analytical Grammar | Demme Learninghttps://demmelearning.com/ | Ela | Grades 3–12 | Classical |
| Animal Alphabet Friends Flashcards | — | Ela | Grades Pre-K–12 | Traditional |
| Animal Friends Books 1-8 | — | Ela | Grades Pre-K–12 | Traditional |
| Animal Friends Books 1-8 Teacher Copy | — | Ela | Grades Pre-K–12 | Traditional |
| Any Child Can Write | Oxford University PressCustomer Service Department | Ela | Grades Pre-K–12 | Literature Based |
| Apples Daily Spelling Drills for Secondary Students | — | Ela | Grades 5–12 | Traditional |
| Applications of Grammar, Books 1 through 6 | Christian Liberty Press | Ela | Grades 7–12 | Traditional |
| ARC (American Reading Company) Core | American Reading Company | Ela | Grades K–12 | Inquiry Based |
| A Reason for Handwriting | The Concerned Group | Ela | Grades K–6 | Traditional |
| A Reason for Spelling | — | Ela | Grades 1–6 | Charlotte Mason |
| A Spelling Dictionary for Beginning Writers | EPS Literacy and Intervention | Ela | Grades 2–6 | Not specified |
| At Last! A Reading Method for Every Child: New Simplified Edition | Pecci Educational PublishingIntrepid Group, Inc. | Ela | Grades K–6 | Blended |
| A Word Write Now: A Thematic Thesaurus for Stylized Writing | Institute for Excellence in Writinghttps://iew.com/ | Ela | Grades 2–12 | Classical |