Category Archives: Random Thoughts

Enjoy your break!

Since I’m on paternity leave in Madrid and not sleeping for more than 90 minutes at a time, I’m going to take a break from the blog for a few weeks. I’ll return to MrKremerScience.com once my family is resettled in Dar and the second semester is underway.

Take a genuine break from school: don’t study or write papers. Just enjoy the time you have off to concentrate on your friends and family. You’ll come back to school more refreshed and more ready to learn if you haven’t been slogging away at an assignment hanging over your head while you’re on holiday.

Have fun and stay safe everybody. I’ll see you next year!

cheers

Mr K

Big News!

Greetings from Madrid!

I’m writing with some big news – my family got an early Christmas present when our son Aaron was born 7 weeks prematurely on Wednesday the 18th of November. I’ve attached a picture because that’s what all proud new parents do. Because he was so early, he can’t leave the intensive care unit for a couple more weeks, which means I won’t be back in Dar es Salaam until after the December break.

2015-12-08 10.16.16

Owner’s manual sold separately!

Since I will be gone, you will have to work independently to finish the summative tasks you have before the break:

  • DP Biology: Topic 5 quizzes and summative unit test
  • Science 10: Genius Hour for Chemistry, the Cola Lab B, and the Conservation of Mass Lab C
  • Science 8: The Heavy Metals essay for chemistry and the summative chemistry unit test

I’ve given written instructions to the school administration and my co-department head, which should also be in my room with your cover teachers. In case that doesn’t happen for some reason, I will also try to send lesson-by-lesson instructions through Google Classroom, so that you know from me what my expectations are for each lesson between now and the break. The plan still follows the calendar I gave you in class last week.

cheers
Mr K

Information Overload?

Well, the first few weeks of the school year are in the books, and if you’re anything like me, you’re a little overwhelmed by all the ‘stuff’ you need to know to survive modern schooling. I’m not talking about content knowledge. I mean the ‘how to’ of navigating the virtual side of 21st-century education.

At my school we have 5 different official platforms where students and parents get the resources they need for classes:

  1. Email: The official means of communication between school and home. It seems simple enough, but I’m finding that many students just haven’t developed the habit of checking their email daily. That means a lot of messages go unread until it’s too late – the deadline has been missed.
  2. Moodle: A well-established online course management tool, IST has been using Moodle for several years now, and it has quite a bit of versatility once you dig into it. This is where everyone is supposed to go to find homework, class notes, and other resources for every unit, but teachers don’t use it in a consistent manner across the school. Unfortunately, it’s also beginning to look a little dated, and its interface is less intuitive than other options out there.
  3. ManageBac: You’d think that a purpose-designed digital platform aligned with the International Baccalaureate’s Diploma Program and Middle Years Program would be a no-brainer for an IB World School, but it’s generating more questions than answers at my school. All the components are there – complete curriculum documentation and unit planning, assessment tasks, dropboxes linked to Turnitin.com, CAS and after-school activities, a gradebook function, and personalized calendars. However, teachers, students, and parents all see different sides of the platform, and no one is entirely clear about which parts we’re required to use and which are optional. There needs to be some serious professional development around this platform before we can fully take advantage of it, because right now it’s like a semi-operational Death Star: lots of potential power, but riddled with holes.
  4. Google Classroom: My personal favorite of the platforms we use, Classroom integrates seamlessly with Gmail and Google Drive to make it easy to share announcements and assignments with students. It can automatically generate individualized copies of assignments (including those elusive student names in the file name!!) and it organizes student work into Google Drive folders accessible to both teachers and students. It incorporates the shared collaborative capability beautifully and makes documented feedback on rough drafts a breeze. Offline editing is also available for unreliable networks like Tanzania’s. Google Classroom also makes a paperless class an achievable goal – if there’s a 1-to-1 program at the school. Which we don’t have yet.
  5. Ed-Admin: The clunky 1990’s AOL version of school management software, developed (I think) by a company out of South Africa. Our business office loves it, and the rest of the school seems to despise it. While it may be tweaked to meet the demands of individual schools, that requires phone calls and emails to HQ, who will then make the changes for the school. I suspect this platform is on its way out in the next couple of years.

Each one of these platforms brings strengths to the educational possibilities for our students; however, their interoperability is limited, and the resulting jumble of passwords and access points creates chaos for our students, families, and staff alike. In an ideal world, I’d like to see us rely on the Google platforms, since they’re relatively cheap, accessible from everywhere on the planet with an internet connection, and integrate with one another in a way that the other platforms don’t. Perhaps some ManageBac training and a commitment to the Google universe will simplify everything for our families and faculty.

YouTube channels and other digital resources for science education

In my classes, I make extensive use of the collective genius of humanity hosted by YouTube. There are literally millions of creative, intelligent people producing astounding, beautiful, insightful, helpful content online FOR FREE! (To be fair, there are also millions of people producing crap, but that’s a subject for another post.)

I subscribe to a number of cool science channels on YouTube. If you’re a fan of science, you’ve probably already discovered these on your own, but if you’re just beginning your scientific journey of discovery, then you should check out some of the following channels. They are all entertaining, educational, scientifically accurate, and generally fun. I use them in my class routinely because the curators of these channels are soooooo much more talented at inventing and creating engaging content to explain science.

I’ll post a few of these recommendations here from time to time as I work through my own subscriptions and as I unearth channels that are new to me. But enough of my rambling. Here are my recommended YouTube Science Channels of the Day:

Smarter Every Day: Destin is a science guy who simply tries to get smarter every day, which I think is a pretty laudable goal. He’s also got a presence on Tumblr, and of course he’s on Twitter as well. If you want to get smarter every day – even just a little bit – you should check it out.

Veritasium: Derek Muller is the master behind this great channel, and to quote the information straight from the homepage, “Veritasium is a science video blog featuring experiments, expert interviews, cool demos, and discussions with the public about everything science.” He’s also quite active on Twitter. Follow Derek to discover more of the truth in science!

My colleague and partner in the battle against ignorance, Matt Erdosy, passed along the following website a while back, and I’ve been able to explore it during the past school year. “The Big History Project” may not sound like a science resource, but the site labels itself as “A journey through 13.8 billion years of history,” and it includes all the major events in the history of the Universe. So it’s not like a History Channel history or a Mr Price’s European history class kind of history. It’s literally a history of everything. I’ve just started to scratch the surface of what’s in this site, but as I learn more about it, we will explore more of it in class, particularly in my 8th grade astronomy lessons.

I’ve also included a couple more science-y YouTube channels to today’s post, since students seem to respond so well to them. First up today is the very well-regarded Minute Physics. Minute Physics, as you might guess, includes a lot of physical science lessons broken into one-minute videos. It’s like Short-Attention-Span Theatre for science class! According to the channel creators, “Simply put: cool physics and other sweet science.”

The next channel I’ll share is Crash Course. Many of my students are already familiar with the Green borthers’ great series on YouTube. Crash Course doesn’t cover only science. There are 8 separate courses available on the channel, but of course in my classes we focus on the science end of things. Quick-hitting, entertaining, and loaded with resources such as external links, additional footage and explanations, as well as quizzes corresponding to the videos, this channel is well worth bookmarking.

Welcome to the new school year!

Welcome – or welcome back – to another exciting year of learning about science!

After recharging my internal batteries on an extended safari with my dad and brother, followed by a couple of weeks in Italy with my children and my mom, I’m energized for the upcoming school year. It’s time to get started on what should be an exciting, innovative, engaging year for myself and all the students in my classes.

We’ve overhauled the grade 8 science curriculum since last year, which means that this year we’ll be studying astronomy, chemistry, electricity and magnetism, and plant adaptations – a nice mix of sciences that will hopefully offer a little something for everyone.

Grade 10 science is broken into the three ‘classic’ sciences of chemistry, physics, and biology, with units on stoichiometry, sound and light waves, and genetics and evolution, respectively.

This year is particularly intriguing for me as I make the transition from teaching the Diploma Program’s Environmental Systems and Societies course for the past 7 years to my first year teaching IB Biology. It will be fun to apply some of my “teaching bag o’ tricks” to a new subject.

Let’s get started!

Cheers

Mr K

Celebrating Women in Astronomy

In honor of International Women’s Day, I am focusing today’s lessons in grade 8 science on the many contributions of women to the field of astronomy.

We start with an overview, courtesy of The Woman Astronomer, with stories of women from Hypatia of Alexandria and the “Harvard’s Computers” to Debra Fischer and Jill Tarter. Students will examine how these women have influenced our knowledge of the heavens throughout history.

The Astronomical Society of the Pacific also has a nice collection of short biographies about women who have contributed to the field of space science.

Then we’ll wrap up class with a showing of Neil deGrasse Tyson’s Cosmos episode titled “Sisters of the Sun,” in which we explore not only the structure of the Sun and other stars, but the stories of Annie Jump Cannon and Henrietta Swan Leavitt.

Remember, every person on Earth owes his or her life to a strong woman – Mom!

“What if I don’t believe in the Big Bang?”

Good morning.

During one of today’s lessons, I received an email from a student asking the question above. As a science teacher, I’ve encountered this question before, usually when we study evolution, but my response applies equally to other fields of science – not just biology. I think it’s important to remind students and families about the key difference between the scientific and spiritual realms, and we will address the student’s question in my class later this week. I’ve pasted my response to this student below, with the student’s name changed for privacy reasons.

Hi Mr Kremer.

I was just wondering, what if you don’t really believe in the Big Bang? What if you believe in another theory?
Thank you
Curious Clinton, 8Z
That’s a good question Clinton, and for a lot of people it’s a tricky one. Part of the confusion is based on use of the word ‘believe’ instead of the more appropriate words ‘observe’ and ‘measure’.  Beliefs don’t need observable, measurable evidence. Observation means using only what we can directly sense and measure.

Science is based on observation and study of the natural world. We come up with ideas to try to explain what we can observe, and then we design ways to test those ideas – scientific experiments. If the idea fails the test, we reject it. If the idea is supported by the test, we build on it and go deeper, adding more detail so that we have a more complete picture of how the idea/process works. We keep doing this over and over again, and we have other people test the same ideas, until one of 2 things happens:

  1. the idea fails a test, and we reject it as being ‘not correct’
  2. the idea continues to be supported by observation, and we continue to build on it

So within science, it’s not really accurate to say that we ‘believe’ in an idea like the Big Bang Theory, or evolution by natural selection, or gravity. Rather, we accept the evidence that supports these theories. These theories have been tested many different ways by many different people and have always been supported by observation – what we can see, hear, smell, or sense. That means we consider them to be true up to the moment when one of them fails a fair test. If one of them fails a fair test and is disproved, scientists will no longer accept the theory as a valid explanation for how the world works.

One classic example is our understanding of the structure of our solar system. Before people developed the telescope, which allowed us to directly observe the other planets and their moons, the Geocentric model (Earth at the center of the solar system, with the Sun and the other planets orbiting around Earth) was accepted as scientific fact because it passed all the tests available at that time. But once we invented telescopes and were able to accurately see that moons orbit around other planets and those planets orbit around the Sun, we recognized that the ‘Geocentric’ model wasn’t correct – it failed the test of observation. So we developed a new idea called the Heliocentric model, which has proven correct everything we have been able to observe so far.

At some point in the future, when we have better technology that lets us make even more precise and accurate measurements and observations about our Universe, we may decide that the Big Bang Theory is wrong. When and if that happens, we will reject the BBT and start using a new, better explanation for how the Universe began.

Does that help? It was a really good question, and we will talk about it in class soon.

cheers

Mr K

I’ll close with one of my favorite quotes from Neil deGrasse Tyson on this topic: “One of the beautiful things about science is that it’s true whether you believe in it or not.”

An Antarctic Lesson for Educators: It’s About the Journey!

I found this TED talk while browsing for some resources for my physics unit this morning (okay, I got a little distracted). In his presentation, explorer Ben Saunders discusses the lessons he learned during his 1,800-mile round-trip walk to and from the South Pole. His public speaking style isn’t great – after all, he just spent months walking essentially alone across the most desolate continent on the planet – but I think he’s got a great message, one that I think more teachers, school administrators, and parents should heed. That message is basically, “It’s not the goal that’s important, but the journey undergone in its pursuit.”

At school we get so wrapped up in test results and scores and grades, that many of us in education forget about the joy of discovery in genuine learning. I’m guilty of it myself, I see it all around me at IST, and I’ve seen it at other schools as well. Learning requires the making of mistakes, and it sometimes means getting distracted along the way by something more interesting. We educators and parents need to remember to let our children explore in many directions, to find out that something they thought was right isn’t, and to discover the connections that make sense of the world to them personally. Education may be what happens to you, but learning is what you do yourself.

Here’s the video:

The Force of a Growth Mindset vs the Dark Side of a Fixed Mindset

I’m an educator, which means I’m naturally drawn to things that encourage and improve student learning. I’m also a child of the late 70’s and 80’s, which means I grew up surrounded by the original Star Wars trilogy – Episodes IV, V, and VI, respectively. I collected hundreds of action figures, I’ve watched all 3 films literally dozens of times, my room was lit by a Darth Vader lamp, I’ve owned at least half a dozen light sabers, and I even had a “Return of the Jedi” bedspread for a few years. (Come to think of it, those films probably had an impact on my subsequent interest in science and astronomy.)

Yoda, the Jedi Master, is undoubtedly one of the most iconic teachers in film history. He challenged his naïve, young apprentice Luke not just to master new skills, but to entirely change the way he thinks and perceives the world.

Today I stumbled across the following images in my Twitter feed, and I plan to print them and hang them on the door to my classroom. They summarize for me the mindset changes that are necessary for any kind of success – not just classroom academics, but in any endeavor – in the 21st century. Despite some Google searches, I still don’t know who published them originally, so I will start with this disclaimer: No copyright violation is intended. I am happy to give credit where credit is due.

Anyway, here they are: Yoda and Vader, representing the Good and Evil of learning.

Learning - Growth Mindset Learning - The Dark Side

The best of the best

One of the things I love about Twitter is the sheer volume of ridiculously helpful and inspiring resources it brings me every day. With tools like Tweetdeck and Tweetbot, I get the best globally-crowdsourced information on science, education, educational technology, world news, and music – the categories most aligned with my personal and professional interests – on my homepage every single day.

Today Twitter delivered the following gem to my virtual door: “The ‘All-Time’ Best Science Sites on the Web.” The name is a bit misleading because the author, Larry Ferlazzo, links to some great resources in subjects other than science.

My advice: find a snack, click on the link, and spend the next long while exploring.

Mr Ferlazzo, I’ve never met you, but you rock!