1. Direct Object Pronouns…
DOPS!!!!
Giddy-up!! We are going to learn something new!

2. The object that directly receives the action of the verb is called the direct object.
Bill hit the ball. "Ball" receives the action of the verb "hit.“
The direct object can also be a person.
Sherry hit Bill. (DO=Bill)
The direct object answers the question "what?" or "whom?" with regard to what the subject of the sentence is doing.

3. When the pronoun replaces the name of the direct object, use the following pronouns:
me (me) te (you-familiar) lo, la (him, her, it, you-formal)
nos (us) os (you-all-familiar) los, las (them, you-all-formal)

4. In an affirmative statement with one verb, the direct object pronoun comes immediately BEFORE the conjugated verb.
Tengo = I have Tengo la pluma. = I have the pen. La tengo. = I have it.
The pronoun (la) comes immediately before the verb (tengo).

5. Notice that if the subject of the sentence changes, this does not affect the direct object pronoun.
Juan la tiene.
Juan tiene = John has Juan tiene la pluma. = John has the pen. Juan la tiene. = John has it. OR
María la tiene.
María tiene = Mary has María tiene la pluma. = Mary has the pen. María la tiene. = Mary has it.

6. Some different examples
Objects are plural
María tiene tres libros. Los tiene. or María los tiene
Tenemos dos mesas. Las tenemos. or Nosotros las tenemos.
Object is a person
I know you. Te conozco.
She loves him. Ella lo ama.
She loves me. Ella me ama.
Juan sees her. Juan la ve.
They call us. Ellos nos llaman.

7. You may not get it overnight, the key is practice, practice and then practice some more. 
Rewrite the following with the correct DOP in Español.
I have the tickets.
She loves airplanes.
Dana and José read the itinerary.
We check the luggage.
They see the monitor/screen.
You take the taxi.

8. Un poco mas…
In a negative sentence with one verb, the direct object pronoun is placed between the negative word and the conjugated verb.
Affirmative Sentence
I buy the books. Compro los libros. Los compro. (I buy them.)
Negative Sentence
I don't buy the books. No compro los libros. No los compro. (I don't buy them.)

9. When a sentence has two verbs, the first verb is conjugated and the second verb remains in the infinitive form.
In sentences with two verbs, there are two options regarding the placement of the direct object pronoun.
Place it immediately before the conjugated verb. (basic rule of placement)
Attach it directly to the infinitive. (only with two verb set or affirmative commands)

10. Ejemplos…either choice is correct 
La quiero ver. I want to see it(fem.).
Lo debemos comprar. We should buy it.
Quiero verla. I want to see it(fem.).
Debemos comprarlo. We should buy it.

11. Negative statements…same rules apply
¿Lo debemos comprar? ¿Debemos comprarlo? Should we buy it?
Juan no lo necesita lavar. Juan no necesita lavarlo. John doesn't need to wash it.

12. OJO: What to expect next…
We will see these again with the present progressive tense and commands (imperative mood)
Review these rules often!!!!