1. Harcourt 10-11 Lesson 7 Grammar Day 2 Compound Sentences
Materials needed:
- dry erase board, marker, and eraser.

2. A simple sentence is a group of words that describes one thought.
Simple Sentences
A simple sentence is a group of words that describes one thought.
Dad made breakfast.
Yesterday we learned that the sentences we have been practicing so far this year are simple sentences – sentences that describe only one thought.
We found out that simple sentences can have a compound subject, a compound predicate, or both.
But, we said that good writers don’t want to only use simple sentences in their writing.
So, we started to investigate a new big question…
Dad and Uncle John made breakfast.
Dad made breakfast and packed our lunches.
Dad and Uncle John made breakfast and
packed our lunches.

3. How can I write a compound sentence?
The BIG Question:
How can I write a compound sentence?
Can someone remind us what it was?
We learned that a compound sentence is this… 3

4. compound sentence
two or more simple sentences connected by a conjunction such as and, or, but, so, or for
Would someone like to remind us?
Let’s practice using compound sentences. 4

5. C S C S C C S Simple or Compound?
I will set the table, or I will make the toast. S
Jeremy washed and dried the dishes.
Mother had to go to the store, so Liz went
with her. C S
The eggs and sausage are cooking on the stove.
If the sentence is a simple sentence, write S.
If it is a compound sentence, write C.
(first click = sentence, second click = answer)
For each compound sentence, ask them to prove it by saying the two full sentences.
Look at all of our compound sentences. What punctuation mark do you need to use in a compound sentence? * Where do you put the comma?
Look at our three simple sentences. Can you find one with a compound subject?
How about a compound predicate?
What about the last one? What does that one have?
I thought the breakfast was ready, but the
bacon was still cooking. C C
Mom made pancakes, and dad made waffles.
Liz and Jeremy ate breakfast and cleared
the table. S 5

6. Combine to form a compound sentence.
Bob likes baseball cards. He has a
large collection of them.
Bob likes baseball cards, and he
has a large collection of them.
To make your writing better, sometimes you can combine two short sentences that go together into a compound sentence.
It is important to choose the best conjunction, or connecting word, when you combine your sentences.
Here are * two short sentences.
Think about how you might combine them into a compound sentence. Write the conjunction you would choose.
Show me your answer!
Can someone tell me our new compound sentence?
What punctuation mark would I need? Where? *
(do the rest in the same manner)
My brother did his homework. He
forgot to bring it to school.
My brother did his homework, but he
forgot to bring it to school. 6

7. Combine to form a compound sentence.
I can swim in the lake. I can fish in the
river.
I can swim in the lake, or I can fish in
the river.
We caught several fish. We had to let
them go.
We caught several fish, but we had to
let them go. 7

8. Combine to form a compound sentence.
I was very tired. I went to bed early.
I was very tired, so I went to bed early.
Did you leave your coat in school? Did
you leave it on the bus?
*You may want to use the remainder of the time to go over spelling sentence homework.
Did you leave your coat in school, or did
you leave it on the bus? 8