[1] As a reference, for example, Lupe Fiasco's program at M.I.T. in the USA:

[2]  In projects and presentations, students also receive feedback from fellow students (peer to peer). It is important to us that students practice giving and receiving appreciation and constructive criticism.

Finally, teachers are not excluded from feedback and evaluation. After a three-month learning cycle, they ask students for feedback. How did the students feel about the learning support? What could they have done better? Teachers also learn.

[3]  Mc Crindle, p. 77

[4] Mc Crindle, p. 85

[5] Marc, p. 77

[6] Maas, Rüdiger, p.153. Yes Publishing. Kindle-Version. 

[7] Maas, Rüdiger, p.166. Yes Publishing. Kindle-Version. 

[8] Wachs, Daliah, p. 34

[9] Maas, Rüdiger, p. 83. Yes Publishing. Kindle-Version. 

[10] Maas, Rüdiger, p.126. Yes Publishing. Kindle-Version.