Press the space bar to begin. This is intended to also be viewed under a microscope. Use Supplementary 1: Microscope Calibration for Teachers to get the Snap stage coordinates of the pixels seen by your microscope (https://snap.berkeley.edu/snapsource/snap.html#present:Username=milliones&ProjectName=Supplementary%201%3A%20Microscope%20Calibration%20for%20Teachers).
Created May 31, 2019
Last updated September 26, 2019
Published June 28, 2019
