On June 20, 2016 at 6:34 P.M. E.S.T., our sun achieves the most northern point in its journey and stops. The summer solstice marks the moment when the sun stands still; a Latin derivative from the words sol, meaning ”sun”, and sistere, meaning “to come to a stop.” Imagine the wonder and curiosity associated with such a phenomenon in the ancient world!
high school chemistry
Visualizations for Chemistry Teaching and Learning
The June 2016 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: visualizations for chemistry teaching and learning, periodic table resources for teaching visually impaired students, biochemistry in the classroom and laboratory, spectroscopy in the laboratory, commentaries on analytical chemistry topics, resources for teaching, distilling the archives: guided-inquiry experiments.
It's been a few days since my summer break began. I have had a few days to decompress, relax, and think about my next post. I have been planning to write about concept mapping since the end of our first semester. I first recognized the effects of concept mapping in the classroom when I read Shannon Bowen's blog post last December.
It was a familiar childhood sound. You know that sound? A bin of Lego building blocks. You want that one particular piece. You rake through the pieces with both hands, searching. That noise. It was often heard during my younger years and now filters down from my children’s bedrooms upstairs. But, as someone connected with teaching and learning chemistry, I don’t have to leave that toy (or sound) behind.
Guiding principles in my scope and sequence: Start with a simple representations of the nanoscopic and dig deep. Hopefully, by the time we start with vital, albeit often more challenging symbolic representations (mole, stoichiometry, solutions), students have a decent foundation to build upon.
During our review since last week, resonance was labeled as one of the most tricky concepts (along with electron pushing in my opinion), despite lots of practice and instruction. My teaching sequence consists of defining and providing examples of conjugation (after learning about hybridization), delocalized electrons, and finally pushing electrons if conjugation exists. I remember from teaching at the college level that resonance was also a tricky topic for many undergraduates.
Solution to Chemical Mystery #6 is presented. Also, concepts related to the chemical can crush demo are briefly discussed.
I met Jenelle Ball in Denver, CO at the Spring 2015 National ACS meeting. She is soft spoken and engaging. Jenelle’s biographical information is impressive. She earned a BS and MS in chemistry. While in graduate school, she recognized a passion for the process of teaching and learning which led her to teach high school chemistry. Most of her career has been spent at Chico Senior High School in Chico, CA. She was also fortunate to have the opportunity to take a rare sabbatical from high school teaching and earn a MA degree in teaching and learning.
This past week, as part of our Thermochemistry unit, my students were completing one of my favorite Target Inquiry Labs entitled “ A Very Cool Investigation”. We were using calorimeters, dissolving ammonium nitrate, and my students were recording the change in temperature using a digital thermometer. Some of my students had noticed that with si