How to write action within laravel blade template?

How to write action within laravel blade template ?

I got error for above line add in my laravel blade

ErrorException in UrlGenerator.php line 337: Action App\Http\Controllers\SchoolController@getSchool not defined. (View: D:\xampp\htdocs\vadsangal-laravel\resources\views\admin\pages\news-add.blade.php)

via Chebli Mohamed