The Sketch, Math, and Modules (tolerance analysis spreadsheet/Monte Carlo simulation) views can be maximized to display in the entire workspace area of the Concept window. When you maximize one of these views, the other two are hidden.
The Model Explorer and Properties Explorer views are not hidden when you maximize a view. Therefore, if you have one of the Explorer views on the left side of the workspace and one on the right, the maximized view will display only in the Sketch and Modules areas. If the Math view has been combined with the Model or Properties Explorer views, it will still be hidden when you maximize one of the other views.