Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. Why, when focussing a microscope, is it important to have the stage close to the objective lens at the start and wind the stage down as you focus?
   • To focus a (light) microscope, put your head to the side and raise the stage until it is as close to the objective lens as possible without making contact. Then looking through the microscope, wind the stage down using the coarse focusing dial. The fine focus using the smaller dial.
2. How should biological drawings be made?
   • Biological diagrams are line drawings of 'the generalised specimen'.
3. What organelles can be seen under a light microscope?
   • Students to record Cell structure as a labelled biological diagram as seen using a light microscope.