Does Tabitha support the official 1 to 7 IB grading scale?

Yes. Tabitha provides full support for the IB 1–7 grading scale across all DP and MYP subjects, alongside criterion-specific rubrics scored from 0 to 8.

Can I use custom grade boundaries or school-specific rubrics?

Yes. Educators can paste their own district rubrics, adjust weighting across criteria, or input custom percentage-to-grade boundaries.

How does Tabitha verify academic integrity and AI use in IB submissions?

Tabitha features an integrated AI detector that checks student text for synthetic writing patterns, burstiness uniformity, and perplexity, providing objective metrics alongside pedagogical talking points for academic integrity interviews.

IB International Baccalaureate Paper & Essay Grader

Official International Baccalaureate (IB) Criteria Scoring

Grading essays and assignments for the International Baccalaureate (IB) Diploma Programme (DP) and Middle Years Programme (MYP) demands rigorous adherence to official assessment objectives. Tabitha features integrated IB grading matrices, allowing educators to evaluate student work against official Criterion A, B, C, and D descriptors on the standard 1–7 achievement scale. Whether assessing Literature Paper 1 and Paper 2, History Document-Based Questions, or Theory of Knowledge (TOK) essays, Tabitha delivers transparent, criterion-level scoring breakdowns.

Internal Assessments (IA) and Extended Essay (EE) Rubric Alignment

Evaluating lengthy Internal Assessments and 4,000-word Extended Essays requires consistent application of detailed rubrics across entire student cohorts. Tabitha enables teachers to upload or paste complete student drafts and evaluate them against specific IB subject criteria: investigation methodologies, critical analysis, personal engagement, and formal presentation. The platform quotes specific passages to justify criterion mark awards, ensuring teachers maintain moderation consistency.

Criterion-by-Criterion Student Feedback Slips

IB students thrive on targeted, formative feedback that clearly demonstrates how to advance to the next mark band. Tabitha generates comprehensive student feedback slips featuring individual criterion scores, descriptive justifications, and practical guidance on synthesizing arguments, integrating secondary sources, and refining evaluative claims. Feedback slips can be printed for physical distribution or exported directly into Google Classroom and LMS gradebooks.

Batch Copier PDF Processing for DP Exam Simulations

During mock exam weeks, IB educators face stacks of multi-page handwritten test booklets. Tabitha batch paper grader processes multi-page copier scans in a single operation. The system automatically segments booklets by student name, transcribes handwritten responses, and evaluates each paper against your prescribed IB markscheme, saving teachers dozens of hours during peak exam season.