Misapprehension Quotes (2 quotes)
One of the big misapprehensions about mathematics that we perpetrate in our classrooms is that the teacher always seems to know the answer to any problem that is discussed. This gives students the idea that there is a book somewhere with all the right answers to all of the interesting questions, and that teachers know those answers. And if one could get hold of the book, one would have everything settled. Thats so unlike the true nature of mathematics.
There is common misapprehension that the magnitude scale is itself some kind of instrument or apparatus. Visitors will ask to see the scale, and are disconcerted by being referred to tables and charts used for applying the scale to readings taken from the seismograms.