| Abbreviation | Definition |
|---|---|
| ARK | Assessment Resource Kit |
| ARL | Action Reflection Learning |
| ARMS | Attendance Reading and Math for Students |
| ARN | Assessment Reform Network |
| ARNET | Alberta Registered Nurses Educational Trust |
| ARP | Accelerated Reader Program |
| ARP | Assertive Referral Program |
| ARPL | Assessment and Recognition of Prior Learning |
| ARRT | Adult Reading Round Table |
| ART | Advanced Reiki Training |
| ART | Advocacy, Research, and Training |
| ARTA | ALBERTA RETIRED TEACHERS' ASSOCIATION |
| ARTC | Alternative Route to Teacher Credential |
| ARTC | Association of Retired Teachers of Connecticut |
| ARTE | Art and Resistance Through Education |
| ARTEC | Advanced Regional Technical Education Coalition |
| ARTIE | Achieving Results Through Indigenous Education |
| ARTS | Arts Restoration Throughout Schools |
| ARTS | At Risk Talented Students |
| ASA | After School Assignment |