Feedback is a word from a technical system. The feedback in a system is a constructed part of the machine to adjust function(s). (Wiener system theory) The word is used in almost all sciences and lost a lot of specific meaning. In connectivistic theory the learning is described with more elaborate words “back propagation” etc.
This is a hit and miss machine. The motor drives the wheels until the wheels have a certain speed, than the motor stops and the wheels turn around until a minimum speed. After that the motor will fire again and the wheels will get more speed. A feedback loop.
Feedback in an information network is new information.
Back propagation is an activity of a node (neurons in the central nervous system generate an action potential, or voltage spike, the travels both through the axon to signal the next neuron and backpropagates through the dendrites sending a retrograde signal to its presynaptic signaling neurons.)
If a person acts because of Information (I) and the results are bad, than the information (I) was not right. This is new information. In an information network the word <feedback> is not explaining something. (That is a sign connectivism is a good theory, because it is a more simple way to explain)
In everyday life of teachers and therapists feedback is a special jargon for information on behavior or for comment on behaviour. It is called feedback, but it is quite different from feedback in a system. In a system the feedback causes or regulates a function in a predictable way. But when a teacher or a social worker gives a student or client feedback, the result is unpredictable. Possible reactions vary from <not any reaction> to <violence> or <resistance> etc.