The Exemplar Video  section is within the Training section on the Left Navigation Menu. It will only be visible if your district has enabled the Exemplar Videos module. Within the Exemplar Videos section, click on the Exemplar Library tab.

Once you have selected an exemplar for viewing click on the View button to go to the details page for the exemplar. If you would like to save the exemplar to your saved list, click the Include in Saved List button in the upper right corner of the screen. You saved exemplars are visible from you Saved tab.