I am grateful to Jeff Jacoby and his column, Arguable, in the Boston Globe for reminding me of how Isaac Newton filled in his time when he went into self-isolation during The Great Plague of London in 1665-1666.
He spent time thinking and the results were astounding!!!!!
This idea comes from Burkard and Giuseppe @ the fabulous MATHOLOGER channel. Students can make a pattern called a cardioid that pops up all over math according to Burkard.
Follow these steps. There is a pdf file below the first diagram for printing exercise sheets.
And then watch the MATHOLOGER video for a really interesting explanation.
x2 Tables on a Circle pdf file for printing
This circle graph blank could also be used for x3 and x4 tables, which produce totally different yet equally amazing patterns.
Halfway there, now it gets tricky. +52 to each point on the circle and keep multiplying by 2.
ie. 27 x 2 = 54, 28 x 2 = 56 and so on.
so 0 = 52, 1 = 53, 2 = 54, 3 = 55, 4 = 56 etc
This shape is called a CARTIOID.
Weight: 550 lb
Height: 8’ 2”
Top Speed: 35 mph = 51 ft/s
Weight: 1,500 lb
Height: 8’ 2”
Top Speed: 22 mph = 32 ft/s
Comparing these speeds to the fastest man on earth, Usain Bolt:
Top speed: 27 mph = 40 ft/s
………………………………………………………………………
In fact, more Americans die each year from choking on their own vomit than are killed by bears.
More death stats here.
Nevertheless, bears are very fast. So you can see why Park Rangers offer the following advice:
More information at Mountain Nature.
The reason for waiting until the bear is 15 ft away is to make sure the spray doesn’t disperse in the air. If the Pepper Spray is too spread out it will not stop the bear.
Ref: Dog helps save hikers after grizzly chases them for 20 minutes.
Weight: 250kg
Height: 250cm
Top Speed: 56kph = 16 m/sec
More bear stats here.
Weight: 680kg
Height: 250cm
Top Speed: 35kph = 10m/s
More bear stats here.
Comparing these speeds to the fastest man on earth, Usain Bolt:
Top speed: 243kph = 12m/s
So Usain Bolt could out run a Brown Bear but NOT a Grizzly!
In fact more Americans die choking on their own vomit each year than a re killed by bears.
More death stats here.
But bears are very fast so Park Rangers recommend the following survival tactics:
More bear survival info here.
REF: Dog helps save hikers after grizzly chases them for 20 minutes here.
“A growing body of research shows us that outdoor play leads to better physical and mental health, has positive effects on cognitive function and learning, and reduces the incidence of behavioural problems.” Maria Zotti, Nature Play, SA.
Peter Dunstan, Principal Kilkenny PS, SA, writes in SAPPA magazine, Primary Focus, that outdoor play fosters “wonderment, independence and freedom” as well as “social skills, imagination, creativity and problem solving”.
Inspired by SAPPA and NaturePlay, Mathspig has produced her own outdoorsy maths list:
References:
7. Robin Hood Give us your best shot.
9. You can measure the volume of your lungs by blowing one breath into a balloon and pushing it into a full bucket of water. Measure the overflow.
15: Outdoor Maths: Times Tables
21. Light intensity links. Here and here.
36. Killer heels that really kill.
We’ll start with the GOOD
Check out the graph here.
…. and the NOT SO GOOD.
More information at study.com
and the OMG-That’s-AMAZING!
Thanks to Slumfe on IMgur
You may not want Lego brick blossoms falling on your head,
but the Giant Lego Cherry Blossom tree has some awesome maths
to explore. See the tree built in fast forward below.
A raucous romp through the absurdities of American Gun Culture
10 Reasons Students Hate Maths: BUSTED
10 Reasons Students Hate Maths: BUSTED
10 Reasons students hate maths: BUSTED
10 Reasons Why Students Hate Maths: BUSTED
10 Reasons students Hate Maths: BUSTED
10 reasons to hate maths: BUSTED
10 reasons to hate maths: BUSTED
10 reasons to hate maths: BUSTED
10 Reasons to Hate Maths: BUSTED
10 Reasons to Hate Maths: BUSTED
Comic & cutting comment plus random raves.
