A direct object answers..
What or Who
An Indirect Object answers...
I wish you good luck.
What is you?
The poison ivy gave Savannah a bad rash.
What is rash?
Melissa sent Scott a text message.
What is Scott?
The teacher gave the students their test papers.
What is students?
Are you going to tell Chelsea the news?
What is news?
The teacher read us a great story today.
What is us?
Mandy and Sarah's dad built them a treehouse.
What is them?
Can you get us three tickets to the concert?
What is tickets?
Would you please just give them the keys?
What is them?
another volunteer offered each student some ice cubes.
What is student?
Our science teacher showed the class an experiment.
What is experiment?
I was furious because Mandy told Jessica my secret.
What is Jessica?
The official gave us medals when our team won the game.
What is us?