You will need to be able to calculate the magnification of objects you are viewing under the microscope. To do so, you multiply the magnification of the ocular lens (eyepiece) times the magnification of the power of the objective.
Eyepiece x Objective =Total Magnification
This is important!You need to make a note to yourself so you will have the information later during the labs.
You will be required to physically identify the parts of the microscope and their function on your Practicum (test) on microscopes. Be sure you have notes or whatever you need to remember the parts and their functions.