1. What you already know
Simple Subject + Simple Predicate = Simple sentence
She sang.
Complete Subject + Complete Predicate = simple sentence
The young girl sang beautifully.
Compound Subject + compound Predicate = simple sentence
Jackie and Trent rode their bikes to the lake and went swimming.
ALL OF THESE SIMPLE SENTENCES ARE CALLED INDEPENDENT CLAUSES

2. A compound sentence consists of two or more simple sentences joined by
(1) a comma followed by a coordinating conjunction (For, And, Nor, But, Or, Yet, So):
The dog barked, and the cat yowled.

3. Simple sentence + Simple sentence = COMPOUND sentence
Two or more independent (simple) sentences joined by a coordinating conjunction (FANBOYS) For, And, Nor, But, Or, Yet, So
Tracy cried, and the other children laughed at her.
Craig and Liz were competitive, but they just didn’t have what it takes to win.

4. FOR - is to introduce the reason for the preceding clause
AND - joins two similar ideas together
NOR - it is not used nearly as often as the other conjunctions. Its most common use is as the little brother in the correlative pair, neither-nor
BUT - joins two contrasting ideas together
OR - joins two alternative ideas
YET - is very similar to 'but' as it also joins two contrasting ideas together
SO - shows that the second idea is the result of the first

5. These conjunctions (FANBOYS) only need a comma if they join two INDEPENDENT CLAUSES
He has been rewarded ________ he was a hero.
Would you like purple ________ blue cotton candy?
My mother told me to clean my room ________ wash the dishes _____ I would be grounded for the weekend.
Who sent the flowers ________ her?
She stayed up all night studying _________ she could pass the exam.

6. Which conjunction is needed? Is a comma needed?
He calls her stupid _______ she still dates him.
I really like ice cream _________ my favorite desert is chocolate cake.
My sister was always talking on the phone _______ my mom threw it into the lake to get her attention.
Sally received two calls yesterday ___________ both her interviews went really well.
I went to the hospital ________ the doctor could give me a note to miss school.

7. Practice
In your journal, write one compound sentence using each coordination conjunction (FANBOYS)
Make sure that you are joining two INDEPENDENT CLAUSES and use a comma.