How to enable sidebar in blog posts


I have enabled my sidebar using the Main Sidebar Widget area using the Twenty-Eleven Theme but it seems that I only see the sidebar on my pages not on the posts… For example, my homepage can show the sidebar properly at:

BUT not the blog posts like:

How can I enable the sidebar also for the posts?

Any help will be appreciated, thank you.

You have to edit the template for single post and add sidebar. I guess it’d be content-single.php file in your theme folder. But it’s good idea to make a child theme not edit twentyeleven theme files.