: Sometimes, used bookstores or second-hand book websites have copies of textbooks.
Use a PDF Reader with Bookmarks: Apps like Adobe Acrobat or GoodNotes allow you to bookmark frequent units for faster navigation.Split Screen: If teaching online, keep the PDF on one side of your screen and your video call or virtual whiteboard on the other.Print Only What You Need: If you prefer physical notes for specific complex lessons, you can print individual pages rather than the whole book. Conclusion : Sometimes, used bookstores or second-hand book websites