VIDEO: BRIGHT LINE SPECTRUM CALCULATIONS

In this VIDEO, Mr. Hatfield models calculations that allow students to determine the frequency and the energy of a particular light wave seen in spectroscopy, as discussed in Section 4.2 of our text, and as seen in the Bright Line Spectra Lab.

BUT JUST AS IMPORTANT, Mr. Hatfield AGAIN models the use of a notation for displaying very large or small numbers that mimics with the 'EE' key found on many scientific calculators.

This method was previously taught in class. It is a SUPERIOR method that saves time, reduces the likelihood of student error and has students writing out these numbers in a form that matches the way they enter those numbers into a calculator!

And, since students will continue to use that method for the rest of the course, it is important that students master the use of that method for future success.

VIDEO: THE BUNSEN BURNER

VERY IMPORTANT:  On Monday, Oct. 4th, all of Mr. Hatfield's classes will be doing an activity that involves gas.  Students are expected to know how to do this safely!

Mr. Hatfield has made a video to demonstrate the correct way to use the Bunsen burner.  Make sure you review this before you come to class on Monday, as we will be using the Bunsen burners in class to perform the 'Flame Test Lab'.

VIDEO: RED TAPE ON THE FLOOR

Some students have suggested that I should do more about my aging, overcrowded classroom.   They think I should raise a complaint, and get people to understand how rooms like mine make it difficult for students to achieve.

Well.  I can't say that my students are wrong on that point.  Our situation's not that great, I admit.

But this situation is also something that's definitely in my wheelhouse, as this video from the summer of 2020 should show:

VIDEO: A QUICK LOOK AT THE PARTS OF THE ATOM

 This video from Pearson is intended to accompany Investigation 4 in our textbook:

POWER POINT: THE PERIODIC TABLE

Students:  HERE is the latest set of Power Point Notes.  

Click on the link or the graphic above to go to a Mediafire page, where you can download the Notes.

VIDEO: DRAWING ATOMS, "HATFIELD STYLE"

In THIS video, Mr. Hatfield demonstrates his cartoony, unrealistic way of drawing atoms, where '+' are protons, '0' are neutrons and 'e-' are electrons.

Every attempt to draw an atom is, in some sense, unrealistic: after all, atoms are smaller than the waves of visible light which our eyes use to form images. In a sense, atoms don't look like ANYTHING.

Yet, while unrealistic, mastering the use of these symbols can help students develop a better understanding of atomic structure, which can be applied to ions and isotopes as well as neutral atoms.

POWER POINT: THE FLAVORS OF MATTER

Students:  HERE are the Power Point Notes on 'The Flavors of Matter', as shared in class between Aug. 31 and September 9th.

Please note that the final slides not only demonstrate how to write nuclear notation to show isotopes, but that it contains an image of that notation with 'atomic drawings, Hatfield-style', as shown in class and shared on Teams.