Northstar Tutor

Northstar Tutor helps you understand an idea, see it explained, and practice what you have learned.

Explore seven course paths: Biology, General Chemistry, Organic Chemistry, Perceptual Ability, Reading Comprehension, Quantitative Reasoning, and Bosnian/Croatian/Serbian Grammar Foundations.

Start with an interactive visual lesson or browse the course map. Available lessons combine explanations, worked examples, guided practice, and checks for understanding. The course map also identifies topics beyond the currently available interactive lessons.

The Bosnian/Croatian/Serbian path includes 44 lesson guides across 11 modules, 88 practice checks, and an interactive starter for letters, scripts, and language variants. Reveal answers and explanations when you are ready, and revisit a concept when you need more practice.

Use the online classroom in a focused Android app, with Privacy Policy, Terms, and Support available inside the app. No Northstar account is required. Learning progress is saved in local website storage and is not automatically synchronized between devices. An internet connection is required.

Optional online tutor, narration, and requested email-summary features use external service providers. Microphone access is optional and requires Android permission. The live AI tutor is intended for learners age 16 or older; AI responses can be inaccurate.

Northstar Tutor is a learning supplement, not a guarantee of examination results or a certified language qualification.