An informative post about Executive Function at ncld.org, and some strategies to help.
Executive function is a set of mental processes that helps connect past experience with present action. People use it to perform activities such as planning, organizing, strategizing, paying attention to and remembering details, and managing time and space.
If you have trouble with executive function, these things are more difficult to do. You may also show a weakness with working memory, which is like "seeing in your mind's eye." This is an important tool in guiding your actions.