Before you begin: You need an existing school on Lena. See Creating
Your School if you haven’t set one up yet.
Organizational structure
- K-12 Schools
- Universities
K-12 schools use a grades and arms (class sections) hierarchy.Example structure:
Creating grades
Grades represent class levels (e.g., JSS (Junior Secondary School) 1, JSS 2, SS (Senior Secondary) 1, SS 2, Primary 1).Navigate to School Structure
Go to the School Structure section in the sidebar → Grades. The grades management page appears.
Click 'Create Grade'
Enter the grade name (e.g., “JSS 1”, “SS 3”, “Primary 4”). Click Save to add the grade.

Creating arms
Arms are subdivisions within a grade (e.g., Arm A, Arm B, Gold, Silver, Science, Arts).Select a grade
Click on the grade you want to add arms to. The grade detail view opens showing existing arms.
Click 'Create Arm'
Enter the arm name (e.g., “Arm A”, “Science”, “Gold”). Click Save and the new arm appears under the selected grade.
Academic sessions
An academic session represents a full academic year (e.g., “2025/2026”).Creating a session
Create a new session
Enter the session name (e.g., “2025/2026 Academic Session”) and optionally set start and end dates. Click Save and the session appears in the list.

Terms and semesters
Within each session, create the time periods that divide the academic year:- K-12: Terms
- University: Semesters
Create terms like “First Term”, “Second Term”, “Third Term”.
Open the active session
Click on the session to view its details. The session detail page opens showing existing terms.
Create a term
Enter the term name, start date, and end date. Click Save and the term appears in the session.
The active session and period determine which courses are visible and active
for teachers and students. Make sure to activate the correct session and
term/semester at the start of each period.
Managing structure
Editing
You can rename grades, arms, faculties, departments, sessions, and periods at any time. Changes are reflected immediately across the platform.Deleting
Bulk import via Excel
If your school has many grades or departments, you can import your academic structure from an Excel spreadsheet instead of creating each one manually.- K-12 Schools
- Universities
📥 Download K-12 structure import templateImport your entire section/grade/arm structure using a single
Each row creates grades by combining the section with each class name. For example, a row with Section Name “Junior Secondary” (abbreviation “JSS”) and Class Name “1, 2, 3” creates grades “Junior Secondary 1”, “Junior Secondary 2”, and “Junior Secondary 3”.Example spreadsheet:
.xlsx file with the following columns:| Column | Required | Description |
|---|---|---|
| Section Name | Yes | The school section (e.g., “Primary”, “Junior Secondary”, “Senior Secondary”) |
| Section Abbreviation | Yes | Short code for the section (e.g., “PRI”, “JSS”, “SS”) |
| Class Name | Yes | The class numbers within the section — use commas for multiple classes (e.g., “1, 2, 3”) |
| Arm Names | Yes | The arms within each class — use commas for multiple arms (e.g., “A, B, C, D”) |
| Section Name | Section Abbreviation | Class Name | Arm Names |
|---|---|---|---|
| Primary | PRI | 1, 2, 3, 4, 5, 6 | A, B, C |
| Junior Secondary | JSS | 1, 2, 3 | A, B, C, D, E |
| Senior Secondary | SS | 1, 2, 3 | Science, Arts, Commercial |
.xlsx file, review the preview, and confirm.
Related guides
- Managing Students — add students who need to be assigned to this structure
- Managing Teachers — add teachers to your school
- Creating Your School — initial school setup and school type selection
- Glossary — definitions of grade, arm, faculty, department, and other terms
