1. the above suggested answers did not seem to clarify for me what to do. I am very new to this unfortunately.
2. Problem In reading Rails Crash Course I created a "Post" table using this script

```
rails generate scaffold Post author:string title:string body:text
rake db:migrate

```

3. So as part of my learning I proceeded to adding new columns.
I scripted the following:-

```
rails generate migration add_comments_to_posts comments:text
rake db:migrate.

```

4. Checked ~db/migrate/updated posts - the updated column is present
Checked ~db/schema - updated column is also present. ( t.text comments ) noted in the file.
5. When I opened my web browser and tried to display the table all I get was the original 3 columns without the new columns being displayed.

How do I add a column to a 'scaffolded' table?
To all my sincerest thank you for taking the time to help this very elderly student.( I am 75 years old)