The following links contain examples of Grammar papers.

Grammar paper 1
Grammar paper 2
Grammar paper 3
Grammar paper 4
Grammar paper 5
Grammar paper 6

The following powerpoints focus on specific grammatical areas:

Adverbs

Collective nouns

Colons and semicolons

Compound Sentences

Dashes and hyphens

Direct and indirect speech

Homonyms

Homophones

Improving writing - punctuation

Modal verbs

Negative prefixes antonyms

Parenthesis

Prefixes and Suffixes

Prepositions

Punctuation

Standard English

Subordinate clauses

Synonyms

There, their, they're

Using apostrophes

Verb tenses