If want your pi to just work do these steps on the school wifi network, before you go home
In the terminal, use these commands, replacing the sections in RED with your home credentials (replace all the StudentNet instances with your home network name, and the 4153334021 with your home wifi password.
sudo nmcli connection add type wifi ifname wlan0 con-name StudentNet ssid StudentNet
sudo nmcli connection modify StudentNet wifi-sec.key-mgmt wpa-psk
sudo nmcli connection modify StudentNet wifi-sec.psk 4153334021
sudo nmcli connection show
Optional: Show the current connection:
nmcli device wifi show
When you take the device home, power it up and you should be able to find it using the same hostname you've been using at school.
NOTE: if your SSID has a space, you may need quotes around the name. Example: goat boy would be "goat boy"
full example: sudo nmcli connection add type wifi ifname wlan0 con-name "Student Net" ssid "Student Net"
Backup plan.
If you have an HDMI monitor, a USB keyboard, and a USB mouse, hook them up and connect using the Raspberry Pi operating system.