Change mom to Mom

Change while to she was

Change calendar to calender

No change needs to be made in sentence 5.

Change packet's to packets

Change the comma after courses to a period

Change stood out to stands out

The sentence does not need to be changed.

Delete and

Change experienced to expereinced

Change there's to theirs

Change then to than

Change Educating to Educatting

Change are to is

Change things to thing's

Sentence 14 should not be changed.

Each week, I got to shadow different zoo workers. Who would be taking care of their assigned animals.

Each week, I got to shadow different zoo workers as they took care of their assigned animals.

Each wee, getting to shadow different zoo workers. They would be taking care of their assigned animals.

The sentence is written correctly.