"I wish my teacher knew..." provides an opportunity for children or young people in schools to tell you anything, however big or small, which they would like you to know about them. Kyle Schwartz, a teacher in America, famously shared in a Ted Talk the results of asking her class the question: "What do you wish your teacher knew... This opened her eyes to the need for educators to understand the unique realities their students face in order to create an open, safe and supportive place in the classroom. The exercise brought attention to student needs often hidden beneath the surface.
Kyle Schwartz has also written about "I wish my teacher knew..." - which provides a more in-depth and nuanced introduction to using "I wish my teacher knew..." I Wish My Teacher Knew: How One Question Can Change Everything for Our Kids
This isn't an activity to undertake without thinking through. Here is a thoughtful article outlining things you might like to consider about before undertaking "I wish my teacher knew..."