Really cool to think of commutativity by thinking of the people tossing the coins, never thought of it that way. I always imagined it as arranging units in a group in a row, then adding a row for each group, then realising that looking at the rectangle in the opposite direction swaps the quantity of groups and the quantity of elements in each group, while obviously retaining the total quantity of units in the rectangle. PS: There is a small typo in 17:05 where VI*L = CCC rather than CCL, just in case you'd like to amend it or add a comment now that it's just been uploaded :)
This series needs a million views
Share the link with your friends!
Great presentation!
Glad you liked it!
Excellent series. ... In Investigation 2, Rom implicitly knows the distributive law.
That’s right!
🎉😊
Really cool to think of commutativity by thinking of the people tossing the coins, never thought of it that way. I always imagined it as arranging units in a group in a row, then adding a row for each group, then realising that looking at the rectangle in the opposite direction swaps the quantity of groups and the quantity of elements in each group, while obviously retaining the total quantity of units in the rectangle.
PS: There is a small typo in 17:05 where VI*L = CCC rather than CCL, just in case you'd like to amend it or add a comment now that it's just been uploaded :)
@@juanmanuelmunozhernandez7032 thanks! It took me a while to se that! Thank you for pointing out the error. Bahhhh, that’s really frustrating.
@@Inductica I would have raged 😂 That's alright, the point is transparent either way
Discovered, not invented.
What makes you say math is discovered rather than invented?