JCE Classroom Activity #92: Testing for Iodide in Table Salt

One of over 100 activities in the collection, JCE Classroom Activity #92 describes how to test for the presence of iodide in iodized salt using only water, iodized salt, 3% hydrogen peroxide, vinegar and liquid laundry starch.

Greener Replacement Labs and Activities

I am a safety conscience science teacher. I am embarrassed about some of the things that I did in my classes early in my career that I did not realize were unsafe. I saw the demonstrations and activities done at professional development venues and assumed that if my mentors were using the activity, it was safe.

Student Recommendation Tips

Every year, high school teachers across the country are asked to write college recommendations for their current and former students. With today’s competitive college culture, and an ever-growing list of teacher responsibilities—how can we be expected to write 10, sometimes more, original college recommendations each year for our students? As a teacher who was just introduced to all of this two years ago, I’ve spoken with college recruiters, researched how and what to include within a recommendation letter, consulted with guidance counselors (who see the range of recommendations, confidentially), and, most importantly, spoken with veteran teachers who write recommendation letters. After putting together the results of everything that I have learned, I have developed the following set of tips and advice. So, whether you are a pro at writing recommendation letters and are just looking to keep your letters fresh or you are a complete novice, as I was not too long ago, I hope that my advice will be helpful to you.

Particulate Models in Video

We are encouraged to use modelling these days and I have some activities to share along with some videos that might help you in the process.

Particulate Level Conceptual Questions

NGSS and the new AP chemistry curriculum have included modelling in the chemistry curriculum, so it is imperative that we have access to good conceptual questions surrounding modelling. I am in the midst of researching the best sources of these types of questions and resources that will help teachers to design their own. If you have any suggestions, please post them here.

Fluorescent Fashionista

Halloween is a great time of year to do experiments with fluorescence. Check out the video in which we experiment with some fluorescent yarn.

JCE Special Issue Call For Papers

The College Board released a new framework for the AP chemistry course that teachers are using this year. The new curriculum emphasizes big ideas, enduring understandings, and science practices.