If you're planning on teaching abroad I highly recommend learning the language. You don't really need to, but it will make your time abroad much more enriching.
You can take language courses at a private language center, university, or possibly through a tutor. These prices vary quite a bit and can cost thousands of dollars for a semester of studies at a university. At a center you could pay $500 or more dollars for just a few weeks of studies. If you're teaching English full time that can be difficult to fit into your schedule.
A free way is to find a language exchange partner.
Here are some other ways to learn the language. These are language learning software programs. The advantages of these are:
- You can study when you want. There's no worries about conflicting work/school schedules.
- They're cheaper than courses.
- You can start now. You don't have to be there yet.
Rosetta Stone Chinese (Mandarin) Level 1-5 Set
Chinese (Mandarin) I
Rosetta Stone Japanese Level 1-3 Set
Japanese I, Comprehensive: Learn to Speak and Understand Japanese with Pimsleur Language Programs
Rosetta Stone Korean Level 1-3 Set
Korean I, Comprehensive: Learn to Speak and Understand Korean with Pimsleur Language Programs
Rosetta Stone English (American) Level 1-5 Set
Before you invest any many you can check your local library. Some of them may have some of these language learning programs.