BC Schools and the Quarter System

As a result of the ongoing pandemic, schools around the world are adjusting and adapting to facilitate meaningful learning for students. British Columbia is no exception. It seems at this writing, most if not all BC schools will be implementing some kind of quarter semester system. While every school timetable system is different and has advantages and disadvantages, I think it’s really important for parents and students (and for that matter teachers) to realize that the quarter system is the least forgiving system for anyone who gets off to a bad start.

The quarter system involves students taking just two courses during a ten week period where half of each school day would be dedicated to each course. Needless to say a lot of material has to be covered in a very short period of time. As a comparison, after just two weeks of a quarter system, the students will have covered the same about of material that would have been covered in two months of a linear system. If the teacher is on board and prepared and the students are keen and diligent this could be an awesome opportunity for learning and experiencing a wide variety of educational activities that might not be practical when the students and teachers only meet 2 or three times a week for an hour at a time. Hopefully many teachers and students will rise to the occasion and make the best of this unexpected opportunity.

Having said that, in this situation, students and teachers for the most part are being forced into this quarter system with no experience or choice. While it may be the best way to operate schools for efficiency and safety in this particular environment, it is critical for parents to recognize that many students and teachers (on such short notice) will be less than prepared to make the most of this new and quite extreme change. It will be of utmost importance for students to learn the material immediately as it is presented. They need to realize that getting one week behind will be the equivalent of a month in the linear system. Any stutters or stops or confusion on the part of teachers or students will be greatly magnified. Unexpected interruptions will be difficult to deal with and the time dedicated to learning curricula will fly by.

Throughout my career, at the beginning of every year, my most important piece of advice to students was always to learn material as it is presented or as soon as possible thereafter. In this environment, that advice will be more important than ever.

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If you or someone you know would like help with Chemistry 11 or 12 please feel free to contact me. Keep in mind that during any given time period, I will likely be working with fewer students but on a more frequent basis.

Get Ready For Chemistry 12… Fall Webinars! (Postponed)

Postponed Due to BC Schools Schedule Changes

As result of this year’s pandemic and school disruptions, I am seeing that students are having very different experiences in different schools and districts across the province.  It seems that most teachers are making great attempts to assist students as much as possible, but the reality is that it is really difficult for both students and teachers these days.  Many of my current students are signed up to take Chemistry 12 in September and I am making sure that they have the required knowledge and skills from Chemistry 11 to do so successfully.

Sign Up Now

If you are planning on taking Chem 12 this September, I will be offering 90 minute webinars from August 31 to September 12 in which I will go over all the topics from Chemistry 11 that are most important for success in Chemistry 12.  Each webinar will include all topics as well as pre and post-session printable materials  and only cost $49 plus an Eventbrite service charge.  Sessions will be limited to 10 participants to allow for interaction and some questions.  Pacing will be moderate so that students can follow along and participate in real time.

Sign Up Now

If you are a parent, teacher or school or district administrator, consider passing along this information to any students who might benefit.

No software is required other than an updated version of Google Chrome to use as your browser.  The webinars will take place in my online classroom and as long as you have a computer with microphone, camera and decent internet connection the experience will be seamless.  There are multiple sessions to choose from  so take your pick and register soon.

What’s The Deal With Face Masks And The Pandemic?

It goes without saying that the use of any face mask will reduce the transmission of airborne infections.  Masks can protect the wearer from viruses entering their nose, mouth and respiratory tract, and they can prevent the person wearing the mask from spreading the virus to others (if the wearer happens to be infected and carrying the virus).

Why Were Masks Discouraged Initially?

So what’s the deal with the WHO (the World Health Organization) and other health authorities initially downplaying their effectiveness and actually discouraging their use by the general public?  It’s possible that they were following the progression of the accumulation of evidence as they have said.  But, let’s be honest, if they weren’t effective they wouldn’t be as important to health care providers as we know they are.  I think that there are two more important answers to why they were initially discouraged.  The first is that there was and is a shortage of hospital grade face masks.  If the general public started demanding them even more than they already are, it would simply put more strain on the supply required for frontline health care workers.

The second likely reason is that the effectiveness of any mask depends on its design, the material it is made out of and most importantly, the way it is used. I’m not going to focus on design and material.   But obviously, anything that filters the air that you breathe in and out will have some effectiveness and so even the use of a bandana can work to some extent.  Unfortunately, the average person is very likely to misuse any style of mask that they choose by overusing it , reusing it unwashed or mishandling it.  In fact, masks used in hospitals are expected to be used once and only once and then safely discarded. (However and very unfortunately, because of their shortage, some frontline workers are forced to wear the same mask longer than they should and even worse, reuse it.)

Use Them Properly

So, while the current explosion of internet instructions for home made masks might be great and also help maintain the supply of manufactured masks for health care providers (and environmentally friendly), it’s critically important that all of these homemade masks (any other) are used properly.  When you put on your mask and head off to get your  groceries,  keep in mind that if you walk through an environment  in which the virus is present, and the mask catches the droplets containing the virus preventing them from infecting you, the virus is now sitting on the moist surface of the mask.  Again, if the mask actually protected you, then there is a high probability that  virus particles are sitting right there on the mask.  The first things you should do when you get home are carefully take the mask off, throw it in the washing machine and wash your hands.

Please Don’t…

What you should not do is just put the mask down on the counter while you unpack the groceries. Or even think about using that mask again without washing it thoroughly.

While you are out and about even pulling the mask down and moving it back into position can be problematic as every time you touch the mask you run the risk of touching virus particles and spreading them to other surfaces.

Better Yet…

Why not as much as possible just stay out of social environments or keep your social distance and a mask should not be needed?  On the other hand, if you have to do something like grocery shopping where masks can be protective, make sure you use them properly.  Don’t readjust them, only use them for short periods, only use them once and immediately wash them after each use.

Finally, if you are infected you really shouldn’t be out and about anywhere with or without a mask.

Please stay safe and think of others.

 

Make A Commitment Today

I’m going to ask you to make a commitment but first…

A Little Background

I know I have to keep this short.  So I won’t go into detail about how my wife is a nurse and therefore we might have a lttle more skin in the game.  Or dwell on the importance of drawing conclusions that are based on good information.  Not as a result of viral e-mails, or wishful thinking or…  but based on data and evidence: science.

I am still hearing from and seeing individuals and groups that are questioning the significance of what is happening around us and questioning our need to self isolate.  Graphics like this one in particular have been used to downplay the severity of our situation.

This is a (less than helpful) comparison of a brand new disease in its early stages with diseases that are geographically isolated or treatable and preventable for the most part.  In fact, the number of global deaths per day for Covid has already gone from 56 to 225 (from March 12 – 23).  I contacted the author of this graphic to express my concerns and if you go to the website, you can see that they have added a number of annotations and caveats to the graphic

 

Here are two, more helpful and eye-opening graphics, that compare “apples with apples” in real time as of day 73  (today for Covid which is in red) of three comparable diseases and can be found at https://covid19info.live/ under “Show More Graphs.”

A comparison of global cases:

And a comparison of global deaths.

It is not just about you or me contracting the virus or “older” people dying, it is also about not spreading the virus (which any of us can do) and overwhelming our health care capacity to the extent that minor and routine medical interventions will go untreated and turn into major ones.  Not to mention many, many more people dying (including “young” people).

Thought Experiment

Here is a thought experiment which can be applied to any geographic location on earth.  I happen to live in British Columbia, Canada.  Imagine if every individual was able to self isolate in such a way that as of today, not a single new infection takes place.  (I know, but I did say it was a thought experiment.)  It takes from 5-12 days for symptoms to express themselves from the onset of infection.  So, within 5-12 days, we could actually see the number of cases begin to peak and start levelling off.  Within 14 days we could actually see the number of active cases decreasing.  With tightly controlled movement (ie: controlled borders) and a commitment from citizens to rigorously self isolate we could see real tangible improvement literally within days.

Make A Commitment

Make a commitment to completely limit  your face to face interactions with others.  No groups. Period.  Any really necessary interactions you have with individuals that you don’t live with should be at a distance of at least 2 metres.
Is this all it would take?  Is it possible?  Realistic?  I don’t know.  Is it worth trying?  Absolutely.

Please make this commitment today.

It’s That Time of Year Again!

Middle of September, 2019.  Another school year has begun and I’m beginning  to welcome new students to my online classroom.  If you are just starting Chemistry 11 or Chemistry 12, now is the time to contact me to set up a free half-hour trial of my online tutoring in my online classroom.  Whether or not you think you will need help, now is the time to find and set up helpful resources like this to use immediately or anytime down the road when things might get more challenging.  My online tutoring is not only effective and economical, it is also incredibly convenient as you can read about on my Testimonials page.

Big Tip for Chemistry 11

If you are in Chemistry 11 this year, the most important thing to focus on right now is mastering unit conversions using unitary rates or dimensional analysis (depending on what your teacher calls it).  This skill is critical to your success this year and will also be next year if you take Chemistry 12.

Big Tip for Chemistry 12

If you are currently taking Chemistry 12, a key concept to focus on is collision theory.  A set of very simple yet important concepts that are key to understanding the rest of the year.  Also, keep in mind that the first unit (Chemical Kinetics) is the easiest conceptually but the second unit (Chemical Equilibrium) is the most important and understanding and applying Le Chatelier’s Principle at that time will be instrumental for your success in the rest of the course.

Either way, good luck with the course and don’t hesitate to reach out to me to set up a free trial session.  (Keep in mind that free sessions may or may not be available after March depending on my level of bookings.)

Hope to see you soon!  Why not book something right now?

Year End Activity: Bio Batteries

June can be a difficult month for engaging students.  Particularly grade 12 students distracted by prom, grad, final exams and dreams of summer sunshine.  One activity that I have used over the years for my chemistry 12 students is making “bio-batteries.”  This is a fun, really easy to set up activity that allows students to apply their knowledge of electrochemistry in an engaging, interesting and unusual way.

Constructing Bio-Batteries

This activity has a huge payoff for minimal preparation on the part of the teacher or the students.  All you need to do is have some fruits and vegetables available, along with various metal electrodes, leads and volt meters.  That’s it!
Students then construct bio-batteries by sticking the electrodes into the various fruits and vegetables and measure the voltage.  You can make the activity as casual or formal as you like and either way, students find the activity fun and eye opening.  Different groups can even try connecting their batteries together in series or parallel and see how the voltage changes or not.  Depending how adventurous the class is, you might even try making human bio- batteries by holding electrodes connected to a volt meter with hands dampened by salty water.

To help the students focus and give them some structure, I hand out this guide sheet at the beginning of the class.  It is even fun for them to take notes and draw diagrams of the different galvanic cells that they are creating, playing the role of Allesandro Volta.

In preparation, other than having electrodes, leads and volt meters ready, I would drop by my local produce or grocery store and buy up their “sad state” fruits and vegetables.  You might check-in a couple days in advance and ask them to set aside some of these fruits and veggies that otherwise would be heading to the compost.  You could also ask students to go through their fridges at home and look for something appropriate to use and bring to class.  Oranges, lemons, grapefruits, watermelon, potatoes, bananas, apples, yams… there are endless possibilities.  Most classrooms have access to zinc, copper, nickel, aluminum and maybe even silver electrodes.

Students will be able to apply what they have been learning and have a blast in the process.  They’ll remember the activity for a long time.  If you try it out, feel free to leave a comment and let me know how it went.