Author: MariaD
Soroban abacus and finger math
Have you ever wondered why the Oriental Soroban abacus has 4 separate beads? It is in base 10, not 4 or 5, so why organize it that way? In response to yesterday’s post Hand tricks! Alexander Bogomolny linked his…
Posted in Make
Who am I? A guessing game
“Math is not linear.” People say that, but do you believe it? Here is the history of one person’s interaction with Khan Academy. Answer this person’s riddle: WHO AM I? Judging by this historical document, how old do you think…
Posted in Grow
Summer math and circle leaders incubator: Newsletter July 16, 2014
Subscribe and read archives Pinterest | Twitter | Facebook | Google+ Hi, I am Moby Snoodles, and this is news about Natural Math. Send me your questions, comments, and stories of math adventures at moby@moebiusnoodles.com In this newsletter: Summer math: grind or adventure? Volunteer or business opportunities…
Posted in Newsletter
1001 Leaders: Exploring the spiral multiplication table
Today, our guest is Joey Grether, an unbridled idealist, parent, and teacher. His journey to math play with kids started with designing tools and devices. Have you ever wondered how Montessori designed all the activities with her beads, or how…
Posted in A Math Circle Journey, Make
