Creating Visuals for Nucleon Interactions

screen-shot-2016-10-24-at-10-18-31-pmRepulsive electrostatic forces. Strong nuclear forces. Charged subatomic particles interacting with neutral subatomic particles. Stable nuclei contain a “magic” number of neutrons and protons, otherwise the nucleus will decay.

Students will act like they understand these terms  by attempting to memorize the definitions, and all the explanations written down in class. And that’s the problem…students memorizing information and not actually learning the concepts. Subatomic particle interactions has always been a complicated concept for my students. I’ve done graphing, picture visuals, number analyzing, lots of stuff that is supposed to work. Yet it’s always a lower scoring portion on quizzes and tests.

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Science Sundays – Catalyst Investigation!

New year. New goals. One of them being more blog posts, so welcome to Science Sundays! Each Sunday I’m going to write something about science, and classroom activities, instructional strategies, or current events!

This week’s topic will be: Catalyst Investigations! I felt this should be the first ‘Science Sunday’ since my last post was all about the stress of implementing labs and it’s only right to write about the great parts too 🙂

The slow-mo video below shows my students testing a gas that is produced when hydrogen peroxide and potassium iodide interact:

The glowing wood splint reignites as it interacts with the gas being produced by the decomposition of hydrogen peroxide (into water and oxygen gas). While I used this lab to study catalysts, it could also be used for learning types of reactions!

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The Trouble with Lab is…

The trouble with lab is…said to the tempo of Kelly Clarkson’s song “The Trouble with Love Is.” Don’t know the song? Here ya go…

What’s got me singing the lab blues? Exhaustion, frustration, and well my belief that it will be better next time. We all know students can’t wait to do a lab. They beg for them starting day 1, “Mrs. J, when are we going to do a lab?” “Please can we do a lab?” I have 3 preps this year (Chem 1, 2 and college prep) so my Chem 1 classes have seen the set up for the others and have been particularly eager.

Last week the time had finally come for my classes to do a lab….all of them….at the same time….over multiple days. (Side note: we’ve been doing labs all semester but I’ve been able to stagger them….unfortunately not this time) To say the week was stressful would be an understatement. First, I want to say I work with amazing colleagues who help with set up when they can, but even with their help managing three different labs was a bit much. Chem 2 is working on Collision Theory and the conditions that affect reaction rates, CP Chem is beginning heating and cooling concepts, and Chem 1 is focused on mixtures, solutions, and chemical/physical changes. The only thing these labs had in common was a ring stand lol If you’re a teacher that has to set up labs I don’t have to tell you about the amount of time required to set up for ONE lab, let alone three! (It’s HOURS, for everyone else) Thank you Ryan Reynolds for knowing my pain….

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