ReddRadar
Agent skill
lms-grades
LMS gradebook system for LT/IT (English Language Arts) and KCFS (Kang Chiao Future Skill) courses. Use this skill when implementing grade calculation, gradebook features, expectations system, or assessment title management.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/product/lms-grades
SKILL.md
LMS Grades - Gradebook System
Quick Reference
| System | Score Range | Formula |
|---|---|---|
| LT/IT | 0-100 | Weighted avg: FA 15%, SA 20%, Final 10% |
| KCFS | 0-5 (→50-100) | Base 50 + weighted categories |
Two Calculation Engines
| Engine | File | Final Code | Use Case |
|---|---|---|---|
| Core Grade | lib/grade/calculations.ts |
FINAL | Historical reports |
| Formula Engine | lib/gradebook/FormulaEngine.ts |
MID | Live gradebook |
LT/IT Grades (English)
Assessment Codes (14 total)
- FA1-FA8: Formative Assessments (15% total, 0.0188 each)
- SA1-SA4: Summative Assessments (20% total, 0.05 each)
- FINAL/MID: Final/Midterm Exam (10%)
Formula
Semester = (FA_avg × 0.15 + SA_avg × 0.20 + FINAL × 0.10) ÷ 0.45
Rules:
- Only scores >0 included
- All zeros → null
→ See: references/lt-it-formula.md
KCFS Grades (Future Skills)
Formula
Term Grade = 50 + Σ(category_score × weight)
Categories by Grade
| Grade | Categories | Weight |
|---|---|---|
| G1-2 | COMM, COLLAB, SD, CT | 2.5 |
| G3-4 | + BW (5 total) | 2.0 |
| G5-6 | + PORT, PRES (6 total) | 5/3 |
Rules:
- Scores 0-5 (0.5 increments)
- Zero counts (lowers grade)
- Blank/Absent excluded
→ See: references/kcfs-formula.md
Key Files
| Purpose | Location |
|---|---|
| Core Calculations | lib/grade/calculations.ts |
| KCFS Calculations | lib/grade/kcfs-calculations.ts |
| Formula Engine | lib/gradebook/FormulaEngine.ts |
| Gradebook Page | app/(lms)/class/[classId]/gradebook/ |
| Spreadsheet | components/gradebook/Spreadsheet.tsx |
| Expectations | components/gradebook/ExpectationsManager.tsx |
Features
Gradebook Expectations (v1.52.0)
- Head Teachers set completion targets
- Track teacher progress by grade/course
- Status: on_track / behind / not_started
Assessment Title Override
- Priority: Class > Grade×Track > Default
- Affects display only, not calculation
References
- LT/IT Formula: references/lt-it-formula.md
- KCFS Formula: references/kcfs-formula.md
- KCFS Config: references/kcfs-config.md
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