Recording a presentation in Teams is advantageous in that your recordings are saved into Microsoft Stream automatically. This allows you to add your videos to a Stream that will be instantly accessible in your classes on Teams.

In Microsoft Teams
            Go to Calendar and select Meet Now.

            Give you presentation a name and select Join Now.

              

            p.s. If you select the blur video button, you can now choose a background for                  your video.

            Select the Share button, and browse to the PowerPoint, or other media, you                    wish to present.

            When your presentation is loaded, select the ellipses next to the Share button                  and press the Start Recording button and begin narrating your presentation.

            Use the navigation buttons to move through your PowerPoint.

            When you are finished, press the Stop Recording button.

            Your video recording will be saved automatically in Microsoft Stream.