numberOfRowsInSection not being called for UITableView

add this lines:

- (void)viewDidLoad {
  [super viewDidLoad];

  self.table.dataSource = self;
  self.table.delegate = self;
}

but much easier would be to set the datasource in interface-build aka the XIB file.

Try this

@interface SettingsCourses : UIViewController <UITableViewDelegate,UITableViewDataSource>