Tofu Tim's table of tubbies

[BaoPham92]

Ruby OOP Notes:

Amazon objects:

1. Shopping-Cart
2. Category
3. Store’s

Homework grading:

1. Answer guideline
   2. Students
   3. Spelling
   Attendance-App
2. Calendar
3. Student
4. Classroom
   Lyft:
5. User
6. Driver
7. Advertiser