Glad to know that you are a computer science home help teacher. There are plenty of websites which offers online tutoring services, where you can share your knowledge with the school and college  students. This way you can earn a good income and increase your knowledge about the same. I am also an education consultant and currently working as an online tutor as well if you want you can also try the same.
You can visit www.abchomeworkhelp.com for more details