Definition of these three concepts:

Learning: As we read in unit 1 learning, acquires new, or modifies and reinforces existing knowledge, behaviors, skills,values, or preferences and may involve synthesizing different types of information.  Learning produces changes in the organism and the changes produced are permanent.  Language learning is not something that you can not do faster, this is a slow process in human being that takes everything is in the environment .

Language: This is a complex skill not only because we use our mouth or tongue to expres something, also because we use our body to express many things.  That is why it is the most important aspect in the life of all beings, because human beings can communicate with each other, able to exchange knowledge, beliefs, opinions, wishes, threats, commands, thanks, promises, declarations, feelings, etc.

Teaching: Teaching is the way  people can help some one to do something and learn how to do it.  This is a method teachers or a leader can give instructions and be a guide and make suggestions about the best ways to acquire knowledge.  There is something between learning and teaching because learning can occur without a teacher, but teaching in the absence of learners is an activity without justification and is very necesary teachers or people who is going to guide something have people who is interested to learn.