Tag Archives: HDYMT

The Sorcerer’s Apprentice, or Never Use a Formula You Don’t Understand

In my grade 10 Science class I recently gave my students an introductory microscope lab, and in my haste I used a “canned” lab from a textbook. Although there are some good activities in this lab, students are presented with … Continue reading

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Using the Sloan SkyServer

In Grade 9 Science, we are currently doing the Astronomy unit. Today we were looking at the shapes of galaxies, and a variety of deep sky objects one can see with even a modest telescope. Instead of just rambling off … Continue reading

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Great free tools for sound recording and analysis

With my grade 11 Physics class we are currently studying sound, and we have been using a variety of tools. Here are some of the great free tools that we have found useful:
Free Audio Editor
The title of this software pretty … Continue reading

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Fun with waves

The properties of waves are sometimes hard to see when doing real-life demos, so by video recording a wave machine it can be played back, or paused, and viewed repeatedly and at leisure. It also allows us to simultaneously show … Continue reading

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Tracker is Awesome.

I have written before about the importance of measurement, and the importance of authenticity. Of course, these beg the question of how one can produce accurate measurements of real-life events in order to analyze them.
I have used probeware – I … Continue reading

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Moving toward authenticity

Consider the following question:
A dog running for a ball takes 4.6 seconds to reach the ball that lands 59 metres away. How fast did the dog run?
That is a fairly typical introductory physics problem, dealing with uniform motion. It is … Continue reading

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