Tuesday, 2 September 2014

Monday, 23 June 2014

Final Exams

Before final exams I ask the kids to hand in their phones ... quick count netted 24 iphones, 1 blackberry, 1 Nexus, and 1 Android.  Total cost estimate was about $24 000 in phones on my desk.

Wednesday, 18 June 2014

Comments like this:

My last question to my students online often involves some interesting responses.  I liked this one:

10. Well, it’s been a lot of fun, hasn’t it? A bit sad to see you go. Enjoy your life, don’t worry about the money, be good to your friends and family. I hope you learned a bit of biology and can take something from this course that you can apply to your life. I don’t believe in saying goodbye….so until we ‘meet’ again.

Solid advice. Also I want to express my gratitude because I have eliminated some of my previous flawed belief systems thanks to your course! I was suspicious of GMOs and feared ‘chemicals’ in my food, some of which I now know are naturally occurring in our bodies. I learned that ‘chemical’ isn’t synonymous with ‘scary toxic sludge they’re using to poison us!!!’ because everything is made up of chemicals after all, and no, not being able to pronounce an ingredient does not indicate that it’s bad for your health. Now I am equipped with a more educated perspective with which I can differentiate between science and pseudoscience. Thank you and take care! :)

Sunday, 27 April 2014

E-cigarette ban for minors proposed in U.S.

E-cigarette ban for minors proposed in U.S.

We trust our students with...

Chemistry - strong acids and bases, Bunsen burners, sharp glassware..
Biology - scalpels, needles, microscopes
Home Ec. - ovens, knives, blenders, microwaves, hot oil
Shop - drills, saws, planers, solvents, welders
General - driving to school, driving friends to school
Sports - wrestling, football, archery, northern canoe trips

... but we don't trust them with free accessible wireless internet availability ... 

So long as there are people who claim homeopathy works, we must never tire of explaining that it doesn’t

Australia's Health and Medical Research Council has produced a 300 page report stating that homeopathy is useless.  Read the article below:

LINK TO ARTICLE

Tuesday, 11 March 2014

Saturday, 8 March 2014

SAT overhaul to make essay optional, end penalty for wrong answers

The SAT college entrance exam is written by 1.7 million students and will be undergoing a significant series of changes in the next few years.

Read more here

Wednesday, 5 March 2014

Sunday, 2 March 2014

Cellular Respiration rate of meal worms

Respiration rate = %/min/g
Slope of graph = y = %/min
I challenged my Bio 30 students to calculate the carbon dioxide and oxygen requirements for 3 meal worms.  The Vernier probes worked excellent. 

Using water baths of different temperatures the metabolic rate was graphed and best fit lines were used to compare temperature effects. 


Monday, 24 February 2014

Tuesday, 18 February 2014

Significant Digits in the Olympics? Skiers Should Never Tie.. Or should they?

Read the article: HERE


It was the first gold-medal tie in Olympic alpine ski racing history. And although the racers seemed to take it in stride—“I’m sure glad I get to share this gold with Tina,” says Gisin—the fact is, they didn’t actually tie.