There are so many areas to study grammar: tenses, subject-verb agreement, prepositions, etc. You need to select one or two grammatical structures to start.....Don't try it all at once.
Teaching grammar is not all that exciting, but it is more important than most belive. Many job applications and cover letters are passed over because the applicant did not use proper grammar. Grammar used to be taught using a language book, learning about parts of speech and doing language exercises such as diagramming sentences. Now grammar is usually taught with writing, and it is taught through mini-lessons. It may also be taught in literature circles when teachers discuss with students how an author writes or a character's speech pattern. When you teach grammar with these methods, students are more likely to remember the grammar rules and apply them to their everyday life.....a necessary tool!
There are many books on grammar. One certainly doesn’t have to look far to learn proper grammar, learn how to improve ones grammar or have grammar questions answered. But, have you ever wondered who decides what is grammatically proper and what isn’t? Have you ever disagreed with what someone tells you is proper grammar? Then you will be happy to know there really is no such thing as proper grammar. In the field of linguistics there are, what is called, a “Prescribed Grammar” and a “Descriptive Grammar.”