1. All‑in‑One Platforms (multiple subjects)

| Platform | What you’ll find | Strengths | How to start | |----------|------------------|-----------|--------------| | Khan Academyhttps://www.khanacademy.org | Math (Algebra → Calculus), Physics, Chemistry, Biology, Economics, History, Computing, SAT/ACT prep | Structured playlists, practice exercises, progress tracking | Create a free account → choose “High school” → pick a subject. | | YouTube “Education” Channels (see section 2) | Short‑to‑hour‑long videos on almost any topic | Free, searchable, community comments help clarify doubts | Subscribe to the channels you like and enable “Playlist” view. | | MIT OpenCourseWare – High Schoolhttps://ocw.mit.edu/high-school/ | Physics, Math, Computer Science, Engineering (lecture videos + PDFs) | University‑level rigor, but many videos are aimed at advanced high‑school learners | Click a course → “Video Lectures” tab. | | Coursera / edX – Audit Mode | Intro courses in programming, data science, humanities, etc. | Interactive quizzes, certificates if you later pay | Enroll → choose “Audit the course” to watch all videos for free. |

Let me know how I can assist you appropriately.

3. Core Modules & Features

Below is an exhaustive look at each component, with screenshots (imaginary, but you can picture them) and the technical specs that make VDIO BOKP SMA stand out.

| Chapter | Textbook pages | Video link | Notes / Practice problems | |---------|----------------|------------|---------------------------| | 1. Cell Structure | 1‑15 | https://youtu.be/8hly3LJjY44 | Draw a cell & label organelles. | | … | … | … | … |