The NIDI Teaching Portal will be available from 12:00 PM to 12:00 AM Eastern Time (New York) on weekdays only.

Click on the stack of squares on the leftmost part of the screen to open up confocal block and stack images.

Use your mouse or the plus (+) and minus (-) signs on the bottom right-hand corner to zoom in and out of images.

After viewing the images, scroll down to answer the quiz.