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ChemEd X contributors offer their ideas and opinions on a broad spectrum of topics pertaining to chemical education.

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Testing for iron pyrite
by Tom Kuntzleman
Fri, 10/13/2017 - 17:17

Decorative beads are tested for the presence of iron pyrite, or FeS2, in an activity well-suited for the National Chemistry Week theme of "Chemistry Rocks!" 

Recent activity: 3 days 32 sec ago
Molar Volume of Hydrogen Gas Lab
by Michael Morgan
Tue, 10/10/2017 - 17:54

Face to face professional development provides the opportunity for teachers to learn from and share with other teachers. This post provides an example of one of the many great ideas that I have learned from other teachers. 

Comments: 2
Recent activity: 23 hours 6 min ago
Chromatogram
by Chad Husting
Sun, 10/08/2017 - 07:07

I allowed my students to choose between two separation type laboratories. About two thirds of the class chose to separate the flavoring out of a grape of cherry soda. The rest of the students used paper chromatography to determine if red-40 dye was in a specific type of candy.

Recent activity: 1 week 1 day ago
Hematite
by Tom Kuntzleman
Sun, 10/01/2017 - 19:32

Check out these experiments that are very easy to perform and also related to the themes for National Chemistry Week in both 2017, Chemistry Rocks and 2018 Chemistry is Out of this World

Recent activity: 2 weeks 1 day ago
Measurement Challenge
by Doug Ragan
Sun, 09/24/2017 - 21:24

As I began to prepare my labs for this upcoming year, I decided to put a bit of a twist on a previous density of a block lab I had used in the past entitled the Measurement Challenge that is sold by Flinn Scientific. It can also be used to find the mass of a block given the materials density and requiring students to measure and calculate the blocks volume. My added twist resulted in great scientific discourse. 

Recent activity: 2 weeks 6 days ago
Richard Feynman
by Kaleb Underwood
Wed, 09/13/2017 - 21:40

The first chapter of every middle and high school science textbook I have ever seen contains an oversimplified section on “the scientific method.” I wanted my students to gain an understanding of science by doing science, as best as we can replicate in a classroom, though inquiry labs, class discussions, and defending claims with evidence.

Recent activity: 2 weeks 6 days ago
photo of student lab work
by Allison Tarvin
Wed, 09/13/2017 - 20:00

The research says the best way to make your school better is to encourage teachers to participate in professional learning teams that unpack the standards to determine what each student should learn and how the learning will be measured, build a useful warehouse of evidence that learning is occurring, and critically review data collected to determine useful instructional strategies versus ineffective strategies.

Comments: 2
Recent activity: 3 weeks 2 days ago
screenshot of the AACT.SCALACS/Oxy Chemistry Teachers Meeting
by Michael Morgan
Mon, 09/11/2017 - 14:55

When I first started teaching I was very fortunate that a local teacher invited me to a high school chemistry teachers meeting. I was really young and really motivated to be a better teacher. I registered immediately and went to an all day event. I think I learned more that day than I did in all of my teacher training. 

Recent activity: 2 weeks 6 days ago
Density and measuring
by Chad Husting
Tue, 09/05/2017 - 07:54

If you are looking for a measuring and density activity that will be challenging, allow students to experience success early on and can be boxed up to use again, you might consider trying the activity that I am sharing in this post.  

Comments: 7
Recent activity: 3 weeks 2 days ago
Big ball small ball
by Chad Husting
Sun, 09/03/2017 - 11:01

I want to share a measuring activity for you to consider. First, start with two baseballs. The first baseball is a regular baseball. The other baseball is called a "small ball". Next, get six to eight students to volunteer. Without talking at all the students must hold the normal baseball and the small ball. They then must decide if the normal ball has more, less or the same mass as the small ball.

Comments: 1
Recent activity: 2 weeks 6 days ago