Run ons, Comma splice.... my own mistakes!! I'm not perfect!!

First of all I have to admit i'm really bad at punctuation!!!!

As future teachers we should know some important principles.

As future teachers, we should know some important principles.

because many times the language is taught in an isolated way, they learn grammar and vocabulary without a real context, they do not use it in their daily lifes so they do no see the purpose of studying it.

because many times the language is taught in an isolated way. They learn grammar and vocabulary without a real context, and they do not use it in their daily lifes, so they do no see the purpose of studying it.

I think it is important to relate English with other subjects such as biology, maths, etc. or subjects of interest for them.

I think it is important to relate English with other subjects, such as biology, maths, etc. or subjects of interest for them.

involve students in social interaction so that they not only learn to read and write in English but also use the language to communicate ideas, it is important they can work in pairs or groups so they engage in solving problems and negotiation of meaning

involve students in social interaction, so that they not only learn to read and write in English but also use the language to communicate ideas. It is important that they can work in pairs or groups, so they engage in solving problems and negotiation of meaning.

It is important that they know we trust them because they can perceive when teachers do not think they are capable and this lead to unmotivation

It is important that they know we trust them, because they can perceive when teachers do not think they are capable, and this lead to unmotivation