For the last ten years, we’ve worked one-on-one with students from elementary school through graduate school. No matter their age, no matter the material, when you ask what they’re struggling with, students almost universally name a subject: “math,” “English” or, in some instances, “school.

Source: http://www.edutopia.org/blog/teaching-students-to-embrace-mistakes-hunter-maats-katie-obrien