Admit your ignorance when you do not know something. If you are not sure but can answer with reasonable speculation, offer it as such, that is, clearly identify it as reasonable speculation. If you make a mistake, admit it and correct it, whether someone catches you or you catch yourself. A. Rid yourself of all pretentiousness. B. Show disdain for pretentiousness in others, but proceed carefully as they likely do not realize they are being pretentious.
Return tests the next class opportunity.
B. This maximizes the advantages of early feedback. Pace lectures to facilitate note taking. A. Use chalkboard or other means to spell troublesome words. Provide aids to note taking, organization, etc. A. Chalkboard facilitates students active involvement in note taking.