In #MathsToday we looked at flow/depth problems with Year 9.
I give you a depth/time graph and on your MWB you must sketch a corresponding 3D shape...
When we spot an erroneous shape amongst the MWBs we reverse the question and class must draw a graph corresponding to that particular 3D shape.
Before that but only after our ideas were clearer about those problems, we gently introduced the terminology of convex and concave curves to consicely but precisely communicate our ideas.
Preface says those chapters praise "dialectical materialism" against the "idealistic" view of Maths developped by Kant...
If you re still there well done...
Apparently the French version contains chapters missing from the English and Spanish versions.
Those chapters were written to please regime (and escape possible visits to goulag).
Recently in a French bookshop: I saw the name Kolmogorov, stopped, scrolled a few pages, and quickly went to the till with this book.
Maths books, 3 volumes, sixth form to early uni. Russian masters.
Right up there.
English version: "Mathematics: its content, method and meaning"
#MathsToday
Love Maths, but not always in tune with what are commonly called "puzzles".
Sometimes feel "puzzles" look down on you while I like Maths which look straight at you.
Therefore am a fraud? Maybe.
