...Aakanksha Angra; Jason Nguyen; Neel Patel; Stephanie Gutzler The concepts of osmosis and diffusion are essential to biology, and student difficulties with them are well documented, along with multiple ways of assessment and diagnosis. We add to the literature by sharing how we used drawing...

... for the role that diffusion of neurotransmitters across the synaptic cleft plays in this process. At least part of the learning problem is due to an erroneous view of diffusion as a slow process, and to an inability to apply the concepts of size and scale to the synapse and its structural components...

...Remy Dou; DaNel Hogan; Mark Kossover; Timothy Spuck; Sarah Young Diffusion has often been taught in science courses as one of the primary ways by which molecules travel, particularly within organisms. For years, classroom teachers have used the same common demonstrations to illustrate this concept...

...Deanna Lankford; Patricia Friedrichsen Diffusion and osmosis are important biological concepts that students often struggle to understand. These are important concepts because they are the basis for many complex biological processes, such as photosynthesis and cellular respiration. We examine...