Ruby on Rails: Saving multiple values in a single database cell

Ruby on Rails: Saving multiple values in a single database cell

How do I save multiple values in a single cell record in Ruby on Rails
applications?
If I have a table named Exp with columns named: Education, Experience, and
Skill, what is the best practice if I want users to store multiple values
such as: education institutions or skills in a single row?
I'd like to have users use multiple text fields, but should go into same
cell record.
For instance if user has multiple skills, those skills should be in one
cell? Would this be best or would it be better if I created a new table
for just skills?
Please advise,
Thanks