ClassLens for Districts

Within a class, every submission is graded against the same rubric with the same rigor, from the first paper to the last.

Give teachers back the hours lost to grading so they can focus on instruction and student support.

When grades are returned promptly, families stay informed. No more 30 assignments graded the night before progress reports.

Knowledge Gap Reports give teachers visibility into class-wide understanding.

Student submissions are staged transiently in a private Google Cloud Storage bucket for AI processing, then best-effort deleted with a 24-hour bucket lifecycle policy as the failsafe. While a job runs, submission metadata and per-student results sit in an encrypted Redis job cache. It is cleared once the job finishes successfully; a job that ends incomplete keeps its cache so the work is recoverable, and either way the 48-hour expiry is the outer bound. In Grade & Review mode, ClassLens keeps the drafted results for teacher review, with each student's name and email address and the names, links and version details of their files. It does not keep a copy of the submission files: the review screen loads each file in the teacher's browser directly from Google Drive. This review copy is deleted when the teacher releases the grades or keeps them as drafts, with a 24-hour expiry as the failsafe. In Draft Only mode, a separate read-only copy of student display names, submission identifiers, scores, criterion results and generated feedback is available to the teacher who ran the job for up to 24 hours from the start of the job. Account deletion removes access to the Draft Only copy and attempts to delete it; if that deletion fails, the copy still expires on its own 24 hours from the start of the job. Opening it does not extend the window, and returning grades in Google Classroom does not delete it. It contains no separate student email-address field, submission files or attachment links. Generated feedback may itself include a student's name or details from their work. Sheet Export jobs do not create either teacher-review copy. The encrypted job-processing cache retains its separate 48-hour expiry failsafe. Email, provider caches and recipient mailboxes follow the separate retention periods in Section 7 of the Privacy Policy. Once a job’s results are released or expire, ClassLens deletes the submission content, grades and AI-generated feedback it held; because the staging delete is best-effort, a bucket rule automatically deletes anything left after 1 day, typically within 48 hours. In the two return modes the draft grade is written to the teacher’s own Google Classroom during grading; Sheets export is the alternative path, writing grades and feedback to a teacher-owned Google Sheet instead. Google Cloud Vertex AI under the Cloud DPA. AES-256-GCM on OAuth tokens. We execute the SDPC National Data Privacy Agreement, or your district’s own data processing agreement.

Native Google Classroom integration. If teachers can use Classroom, they can use ClassLens. Setup takes minutes.