we studied pi and circles! This is a continuation of our series in mathematical constants. Take a quick read about pi. Can you draw a perfect circle on the computer? Did you know circles and the golden ratio are used in art and design? We previously discussed the Fibonacci sequence.
100 digits of pi – how many can you memorize?
Tracing worksheet for kids.
What do diakon, sun flowers, pineapples and brussle sprouts all have in common?
They are plants? – YES
They all follow the golden ratio and Fibonacci sequence – YES
See the write up for the January class!
Hi All! PEMDAS is back! Well, we have been doing class. The write ups have not happened. We have been busy!
August – no class, event at
September – Bridges – write up soon!
October – bones! write up soon!
November – Alka seltzer rockets!
Here is the write up for the rocket class. It was cold and windy!
As always we love Kickstarter projects. There is a new awesome board game for math.
Check out Primo. It is like Candyland, but with prime numbers and common divisors! Fund this project today!
Crash Course, Minute Physics, Woodworking for Mere Mortals, and many others? Contribute one time or monthly and support through Subbale.
art, astronomy, biology, books, chemistry, engineering, general, geology, history, Investment, mathematics, music, physics, video
September 9 is Rock
flipping day ( 2) ( 3). In today's class we will make observations of what we find under rocks and logs in the yard. Behold the world of insects! Bring a notepad, pencil and camera to document what we see under rocks. This is an exercise in properly collecting data and taking sample surveys of populations.
Chiang Mai, Thailand has one of the worlds largest private insect collections.
Thanks for coming out on the super hot day to learn about Archimedes screw. Here is the
write up. Thanks for coming, see you next month.
Recently in the news there is talk of the
17 year cycle cidada. Why 17 years? Seems like a long time. The reason is prime numbers. Watch the video for the explination.
Here are some other news articles and some culture around cicadas
Cicadas take over Staten Island – NY Times
17 Year Cicada Mystery – NY Times
The Japanese love bugs. In the summer time you can
buy pet beetles ( 2) at the local hardware store. Long ago a famous poet named Basho traveled through Japan and worte many haikus about the world around him. One of those is about the cicada. It is carved in a rock at Yamadera. Basho spent some time in this town and temple.
Cicada poem by Basho
iwa nishimi iru
semi no koe
permeating the rock
the cicada's sound
What a great turn out! Here is the write up.
As always, the classes are free and open to everyone. See you next month.
NOTE: next month we are shifting the time to be at 10:30am
This month we will be studying gravity!
Please please . . .
RSVP! We need supplies for this month's experiment and if you don't tell me you are coming we may not have enough supplies. Conversely – if you tell me you are coming and then don't show up – then I'll have over-purchased (and that's no fun).
Bring a hardcover book about the size of a piece of paper – nothing fancy – this is an experiment involving gravity.
Thick rubber bands – only if you have them around.
Please bring a dollar, if you can, to cover supply costs.
We will be hosting class outside, so please dress accordingly.
Have Fun! Be Safe! Learn Lots!