Things still to complete on this Cells Index page:
Introduction to units and size of cell part poster lesson.
Cell size screencast - shorter, into two separate ones.
Being multicellular - use fancy active studio or smart
Cell detective activity - perhaps use inthink quiz & pbl
Review and assessment - complete links to A4 sheet, quizes, and IB style test
Membranes & proteins activity
Exocytosis - student activity needs finishing
and maybe:
Redraft of Critical thinking lesson
Surface area volume ration lesson
Nice list of sizes of almost everything. Good for comparisons - did you know that a bacteria is the same length as wavelength of red light, but 3 times bigger than a Pentium 3 transistor?