I bought an ipad and I don't know how to use Keynote to transfer my presentations to a laptop. Because I want to present it at school with a projector.
The Apple cosmos is also fairly isolated there.
I would suggest saving it in a PC-compatible format and sending it by email.
What is preventing you from using the iPad on the projector via Bluetooth or WLAN?
I do not know if it works
What operating system is on the laptop and how does the laptop connect to the projector at school?
Believe with a USB connection
An iPad can also be connected via USB.
Then you should first inquire how the projector is connected, whether a radio connection is possible or a driver is necessary, and then provide the necessary data.