ANATOMY IN MINUTES — OFFLINE SKIN DISSECTION

1. Download Skin-Dissection-Offline.html to the device. Keep the .html extension.
2. Open the downloaded file in an updated Chrome or Edge browser. On a Chromebook, Chrome's Ctrl+O shortcut opens a local file; choose this HTML file from Downloads.
3. Wait for “Ready · all model assets are included”. Rotate the hand, use Scalpel to trace the U-shaped guide, and use Forceps to lift each flap. Keyboard/touch sliders are also provided.
4. Write and draw in your science journal. Include observations, a labeled drawing, analysis answers, and a conclusion. Each student completes their own report. No Google Form is required. This file does not collect answers or send grades to Classroom.

CLASSROOM DISTRIBUTION
Attach the HTML file to a Classroom assignment and tell students to DOWNLOAD it. The Drive/Classroom preview is not the running 3D lab. Use the six-stage science-journal directions on the website, or give students the journal directions separately. Nothing has been posted or shared by this build.

OFFLINE AND SCHOOL REQUIREMENTS
All model code, meshes, and textures are included. No internet connection or website login is needed for the dissection itself. Optional attribution links need internet. This file does not install software. Progress lasts for this open session and resets on reload/close.
A managed Chromebook may restrict HTML downloads, local file execution, or WebGL. Use only with school approval. Do not change or bypass device security settings. Test the exact file on a student Chromebook under a student account before assigning it to everyone.

QUICK ACCEPTANCE TEST
After downloading, open the file without internet. Confirm the textured hand loads, rotate and zoom it, cut/lift the epidermis, inspect a dermal structure, and cut/lift the dermis. Confirm students have the science-journal directions.

MODEL LIMITS
Real external hand scan by Artec 3D (CC BY 3.0); internal layers, textures, and structures are educational reconstructions. Layer thickness is enlarged. This is not a clinical surgical simulator. Full attribution and Three.js MIT notices are included in the HTML file.