Most BW classrooms are equipped with Sharelink technology.  This installed device facilitates wireless screen sharing, allowing students to present on the classroom screen from their own device.  On the media cart, press the "Sharelink" (or "Wireless") button on the panel.  It will launch Sharelink and will be displayed on the main screen.  Anyone with a BW account and a mobile device can open a web browser window and type in the IP address (displayed on the main screen) in the URL line of their browser.  Choose Windows or Mac, based on your device, and instantly download the program.  Next, enter the 4-digit code displayed on the screen and your computer desktop takes over control!  Great for student presentations or critiques!