A visual Whole Class Feedback Slide to speed up marking and feedback! Whole Class Feedback has transformed the lives of many teachers. It allows teachers to look through books spotting common errors and snapping photos of the ‘best examples’, then instead of writing the same thing 30 times in every book, write it once on a slide and present it to the class. This easy-to-use slide provides a template to make the process even quicker for you.