Table 1.

Knowledge presented by the expert with figures (CM)

CM	Modes of representation with symbols and conventions
Neurons	Circular cell body, elongated axons, small dendritic processes (Box 2A)
Organelles	Globular (Box 2, B and C)
Motor proteins (kinesin and dynein)	Stick figure (Box 2B)
Microtubules	Long strands (Box 2, B and C)
Arrows to identify components	Points at features, movement in anterograde and retrograde directions (Box 2, A, B, D, and F)
Arrows to show movement	Points at features (Box 2B)
Experimental design table	Control and treatment group variables organized into separate columns (Box 2E)
Graph	Independent variable on x-axis, dependent variable on y-axis, key to symbols on the graph show measures for treatment and control groups depicted as separate points or separate bars (Box 2F)