Overview

The Grade Converter was a lightweight but powerful spreadsheet-based tool designed to bridge the gap between mastery-based grading systems and traditional transcript/report card platforms.

At AFSE (Academy for Software Engineering), we piloted a move to mastery-based learning, but NYC Department of Education systems (STARS) still required traditional numeric grades. This tool automated the tedious work of translating fine-grained skill mastery data into clean, policy-compliant final grades.

Features

  • Skill Aggregation: Pulled individual mastery scores across multiple skills and units into an overall course score.
  • Flexible Weighting: Allowed departments to adjust skill weights as mastery expectations evolved.
  • Transcript Conversion: Mapped mastery levels onto required DOE numeric grading scales (e.g., 0–100 scale) transparently and fairly.
  • Auditability: Embedded student-level grade justifications in case of parent, counselor, or administrative review.
  • Error Reduction: Minimized human transcription errors compared to manual re-entry from separate mastery systems.
  • Speed: Converted full course rosters in minutes, not days.

Evidence of Impact

  • Used across multiple CS and Math courses with thousands of grade records processed.
  • Supported fairer, clearer grading in an unscreened, mastery-driven school environment.
  • Enabled smoother conversations with families by maintaining transparency from mastery assessments to official grades.
  • Provided the backbone data for summer course recovery programs during pandemic disruptions.

The Grade Converter Tool was part of a larger suite of internal dashboards and mail merge systems:

Screenshots (Coming Soon)

  • Main grade conversion sheet
  • Sample student-level audit sheet

Notes for Future Development

  • A more portable, shareable version of the Grade Converter could be built in Google Apps Script or lightweight web-based form.
  • Could be adapted to integrate directly with future mastery-based SIS platforms.

Built for teachers, by a teacher — because spreadsheets should work for us, not the other way around.


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