Electronic – Does RFID interfere with NFC

As far as I know, NFC tech operates within the 13.56Mhz band. 125Khz and 13.56Mhz are far enough apart that there should be no problem with both readers active at the same time, as long as your code can handle it. An NFC reader reads only tags operating within its frequency range and the same goes for the 125kHz reader. So each reader will operate without interfering with each other.

You will not be able to read NFC tags with such a distance. The read distance is limited by design, and you can't easily change that.

Now there are ways to extend the useful range to about half a meter, but that's really tricky to do and part of active security research. I doubt that you want to pull that off for a school project. You need a lab and several years of experience to pull this off.

I suggest you look for other RFID tags with medium range read characteristics such as ISO15683. Their read distance is longer, but you need a huge reader-device for that.