What are model and design patterns in programming?

I am not too sure if this is the right place to ask this question, if not, please can someone direct me to the right place.

As the question states, what are model and design patterns in programming?

I understand that design patterns are reusable code and they are different type of design patterns including; creational, structural and behavioural. Can someone please elaborate on models and design patterns, e.g. what these are and how they can be used. I am having really hard time understanding these, it would be really helpful if someone can explain to me. Thanks.