Taking courses at WGU not part of my degree program? And credit by examination

[Merlin]

I was looking to get a math major for TESU by taking these courses.
Now, I am thinking that I could just take them with TESU instead, as I am a new jersey resident. I need to choose between starting at TESU with math or starting at WGU with computer science. I want to have more time to study the CS material before enrolling with WGU because if I do, I can go theough their competency based program faster.
I don't necessarily need these math courses or major for my CS path, but I would think that a math major would go well with CS in general and can be incorporated with it, especially when working in more advanced fields of CS. I may even consider mathematics graduate school.
I'm also considering getting a bachelors or a master in data analytics from WGU after my CS degree because of data analytic'a applicability and its relevance to the study of AI/machine learning.

So are you aiming to get a math degree or a computer science degree? In the first line you mention a TESU BA Math, but then you talk about CS. So is your goal to get a BA from TESU with a dual AoS in Math and CS, or is it one or the other?

If your goal is to get a CS degree and your plan is to use WGU courses to get it, you might as well just earn the CS degree at WGU. It will be far less work and the degree will generally be better regarded than one from TESU.

If you want a dual AoS degree, then your only option is TESU. However, I'd suggest that you might be better off getting the CS degree from WGU first and once awarded, head to TESU for a second bachelor's degree in math. You only need 33 credits in the major for the BA Math degree, which is 11 courses. You'd complete 3 of those courses (Calculus I, Discrete Math I, and Discrete Math II) as part of your WGU BSCS, so you'd only have 24 credits (8 courses) left to complete the degree, which as luck would have it, is the same number of new credits you'd need to complete anyway. As an additional benefit, coming into TESU with an existing BS means you also avoid having to take the cornerstone course at TESU... you'd just need to complete the capstone to graduate. Alternatively, you could complete the CS degree from WGU, then enroll in their education program to get your math credits, and then drop out of WGU and head to TESU to start the BA Math, completing the balance of courses from ACE providers, other colleges, or from TESU directly.

As for taking courses at TESU directly, I don't recommend it. If you are open to taking courses via traditional online courses rather than competency-based, there are far better (cheaper) options than TESU. I wouldn't take courses directly from them unless someone else is paying your way. Luckily since you're in NJ you're only paying $399 per credit rather than $519/cr. However, you'd be better off finding a community college (local or online) or doing some research to find RA schools that offer online courses that are priced well below that rate. I'm sure there are folks on the forum who can help provide some places to start looking. Unfortunately, that isn't my area of expertise.

If you really want to do TESU, at least plan to register for 9 or more credits per term so you can go with the full-time flat-rate tuition plan ($3,579 per term). With the flat-rate plan, you break even with the per-credit rate at 9 credits per term, but it gets progressively cheaper per credit the more classes you can complete in a single term.