1. PDF Viewer & Multi-Crop Tool
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No crops staged yet. Navigate PDF pages and crop as many images as needed!
TEACHER WORKSPACE
Prepare diagrams, preview bilingual questions, and manage your biology question bank in one place.
Log in with your authorized Google account to add or edit practice questions from anywhere.
No crops staged yet. Navigate PDF pages and crop as many images as needed!
Preview evidence-backed chapter metadata repairs before writing. Applying repairs changes only chapter and chapters.
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One-time maintenance for older questions. It fills missing search metadata (chapters, normalized paperSection, numeric question number and a stable random key). It does not change stems, answers, marks or chapter classifications.