Musings of a Mathematical Mom

[Reposted from Alexandra O Fradkin’s blog Musings of a Mathematical Mom; listed in reverse chronological order]

Arithmetic games – is that boring?

Playing with symmetry in kindergarten

The joys of peas and toothpicks for all ages!

Math enrichment – what is the value?

3-digit numbers are tricky! Part II

Entertaining kindergartners with caterpillars, dots, and monsters

3-digit numbers are tricky!

Games with tanks and mirror books

 Measuring everything in sight!

Functions in Kindergarten – A favorite

Avoid Hard Work! – A book for problem-solvers of all levels (toddler to mathematician)

Lots of fun with Tiny Polka Dot

Conservation of fingers and toes

Dots in a Square from Math Without Words

Double perfect squares

Four colors or more?

The Piaget Phenomenon

Time, symmetry, and unexpected turns

Why not count on our fingers?

Fibonacci Trees

Numbers on a Line

 

Ronnie Brown: from Esquisse d’un Programme by A Grothendieck

I just came across again the following (English translation):
 The demands of university teaching, addressed to students (including
those said to be “advanced”) with a modest (and frequently less than mod-
est) mathematical baggage, led me to a Draconian renewal of the themes
of reflection I proposed to my students, and gradually to myself as well.
It seemed important to me to start from an intuitive baggage common to
everyone,  independent of any technical language used to express it,  and
anterior to any such language
– it turned out that the geometric and topo-
logical intuition of shapes, particularly two-dimensional shapes, formed such
a common ground.
(my emphasis)
It seems to me a good idea, and expressed with AG’s usual mastery of language.
Ronnie