Goodsoil DevProfessor Turtle
Free, sign in with GoogleFresh Singapore-syllabus practice, marking with explanations, and a follow-up tutor.
Open Professor TurtleWho it's for
Singapore students P1–S4 and parents helping with revision.
How to get in
Free to use with a daily usage quota. Sign in with a Google account, or create an account with an email address.
What it does
Fresh practice questions by level, subject, topic, and format — matched to the Singapore syllabus and SEAB mark-scheme style, not a fixed bank.
Open-ended answers get a score, what earned it, what was missed, and a model answer — then a tutor chat for follow-ups.
Handwritten work welcome: photo or upload compositions (English and Chinese), comprehension, science, worksheets, assessment pages, PDFs up to 20 pages with a review step. Handwriting images are read for text and not kept on the server.