Abstract: Embodiments of the invention provide techniques for verifying that an attendee of an online educational presentation views material that is presented. In some embodiments, a server computer may instruct an attendee's client computer to present verification information to the attendee which the attendee is to acknowledge. The verification information may, for example, comprise one or more codes, and may be presented at a point in time which is difficult for an attendee to predict. An indication whether the attendee acknowledged the verification information during the time it was presented may be stored, allowing the organizer of an online presentation to determine whether each attendee paid attention to the content presented.