Need to add an image to your website, but it's too big? This tutorial will walk you through the steps of cropping an image using the program called Preview, which is automatically installed on Macintosh computers. You can view the tutorial for the Windows program called Paint here. A common use case would be uploading banners to the announcement content type, which require that the images be 1180px x 346px.
TurningPoint and clickers can be used with or without internet connectivity. Instructions include setup, installation and usage of turning point on both Windows machines and Macs.