If you have two screens that can be connected directly by HDMI, USB-C, or other cables, you can extend your screen from your control device (where you navigate teacher and student content) to the secondary display device (where student content will be displayed).
Begin by making sure the two devices are connected, then follow these steps to extend your display and set up for teaching.
Navigate to Windows Settings > System > Display. Under the Multiple Displays section, select "Extend these displays" to set your display to connect to a second screen but not just duplicate a single display.
You can rearrange your screens at the top of the Display section. Screen 1 should be your control device, which will display the teacher content in a lesson. Drag to rearrange and then click "Apply" to set up whether your control device is to the left or right of your second screen.
Navigate to System Settings > Displays. In the "Use as" section, set the dropdown to "Extended display" to extend your screen onto a connected display rather than duplicate your screen. Click "Arrange..." to rearrange your screens depending on whether your display device is to the left or right of your control device.
Once your screen is extended, open the Student View Window or Follow Feature window and drag it onto your second screen.
Display only the second screen to students, and use the first screen to control the lesson.