Click on any category card on the home page to view its modules and lessons. Click a lesson to view the content and quiz. Use the "Back" buttons at the top of each page to return to the previous screen.

After reading a lesson, scroll down to the quiz questions. Click on your answer choice for each question - it will highlight in blue. Once you've answered all questions, the "Submit Quiz" button will become active. Click it to see your results.

Green indicates correct answers with a checkmark. Red indicates incorrect answers with an X. After submitting, you'll see both your selected answer and the correct answer highlighted.

Yes! Simply click a different answer option and your selection will update. You can change answers as many times as you want before clicking "Submit Quiz."

Yes! Click the "Back to Category" button, then select the same lesson again. The quiz will reset and you can retake it with fresh questions.

You need 70% or higher to pass each quiz. Your score will be displayed as both a fraction (e.g., 3/4) and a percentage after submitting.

No, you can navigate to any lesson in any order. However, we recommend following the sequence as later lessons build on concepts from earlier ones.

Click the "Back to Category" button from any lesson, then click "Back to Home" from the category view. Or simply refresh your browser to return to the home page.

Currently, progress is not saved between sessions. Each time you return to the site, you'll start fresh. We recommend completing sections in single study sessions when possible.

The Final Exam is a 40-question comprehensive test covering all topics. Access it by clicking the "Final Exam & Mastery Review" category card on the home page, then selecting "Full-Course Assessment."