The number of credits required for a teaching degree varies significantly depending on the country, state/province, and specific degree program (e.g., Bachelor of Education, Master of Education). There's no single answer. It can range from around 120 semester credits (or equivalent) for a bachelor's degree to potentially many more for a master's level teaching credential.
To find the exact credit requirement, you need to check the specific requirements of the university or college offering the teaching program you are interested in.