58 MENStJKATION OF SURFACES. A MANUAL DEMONSTRATION OF THE MENSURATION OF SURFACES AND SOLIDS, … AREA OF THE CIRCLE. This apparatus for illustrating the different problems of mensuration is the invention of L. W. Parish and is higlily i)raised by those teachers who have put it to practical use. One exhibition of these simple manual demonstrations to a pupil who is studying mensuration, even…
Schools -- Furniture, equipment, etc. · Teaching Aids and devices
Internet Archive · Winterthur Museum Library · Public domain (published before 1931). Free to use for anything.
