In Diesterweg's writings you can find expressed many of the key concepts that were adopted in Educational Sloyd. The following were some of Diesterweg's instructions to teachers:
Teach naturally! Organize instruction according to the natural developmental stages of the children. Start teaching from the pupil's point of view and direct his progress steadily, firmly and thoroughly. Do not teach anything for which the pupil is not yet ready and do not teach anything with which he is already familiar. Teach in a lively manner. Proceed from the familiar to the unusual, from the simple to the complex, from the easy to the difficult, from the known to the unknown. Do not teach in an academic way (in other words, the lecture-type teaching methods used in higher educational institutions), but simply! Always remember that you are aiming at the abstract (increasing the intellectual capacity) and the material (provision of the curriculum) at the same time.Diesterweg has been attributed as author for the command, "Learn to do by doing."