You're a maths teacher, which confirms that you know the math very well already.
Enex e maths This is part of British English. Enex e math This is part of American English. It's not natural to use both at the same time.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Enex emaths
This is part of British English.
Enex emath
This is part of American English. It's not natural to use both at the same time. You can use one consistently.
Enex ethemath
You don't need the because you have not mentioned something in particular