CELTA gives you the essential skills, knowledge, and hands-on teaching practice you need to teach English to adults.
CELTA is an intense course and it is wise to be well prepared. For online resources to support your CELTA journey, we highly recommend ELT-Training.com
a website run by an experienced CELTA tutor. In particular, the free resource The Ultimate Guide to CELTA Success
and the pre-CELTA Grammar for Language Teachers
are extremely helpful.