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Students can build their own Hoffman apparatus. An animation of the electrolysis on a particulate level is available to show students before, during or after students perform the electrolysis.
Erica Jacobsen shares highlights from the July 2017 issue of the Journal of Chemical Education that are of special interest to high school chemistry teachers.
The July 2017 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: artificial photosynthesis; developing laboratory skills through technology; using videos to enhance learning; smartphones in the laboratory; 3D printing as a teaching resource; exploring and understanding structure; making chemistry connections; research on inquiry; from the archives: elephant's toothpaste.
My first year teaching chemistry, I was looking for a soap-making lab or activity that I could run in my chemistry class with 25-30 students working at the same time. I usually do this activity right before spring break, as it provides enough time for the soap to harden and cure (high school students are impatient to use their soaps right away, which you should not do with cold process soap). I have used the activity at different points in the curriculum: during intermolecular forces during acids and bases, and during stoichiometry. Although I know teachers who use soap making as a project during their stoichiometry unit, I chose to not emphasize the calculations as it would require more time than I have available. Simply making the soap easily fits in a 45-minute period.
In a recent post, I shared sample quiz questions as to how I have differentiated assessment within the mole unit. Here, I share a specific multi-day sequence within the stoichiometry unit. I have written extensively about the project that drives this unit (within the following blog posts: Why consider trying project based learning?, Backwards planning your PBL unit - An Overview of an Entire Unit and What ARE my students actually learning during this long term project (PBL)?), but very little about specific learning tasks. Below is a two day sequence of stoichiometry practice that I set up in my classroom. Stations are set up around the room and students rotate as necessary.
This Call for Contributions has closed. As many school districts are moving toward incorporating student-centered curriculum and pedagogy, many teachers have found that it can be difficult to initiate a classroom culture that encourages students to embrace the change which calls for them to engage in discussions and take more responsibility for their own learning. Chemical Education Xchange (ChemEd X) is interested in learning about how teachers are creating a culture of student-centered learning in their classrooms. For this reason, we are initiating our content specific CALL FOR CONTRIBUTIONS centered on the concept of “Creating a Classroom Culture”.
The June 2017 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: materials science and nanotechnology laboratories, promoting active learning, catalysis and kinetics, blue bottle reaction, cost-effective instrumentation, resources for teaching, from the archive: anchoring concept content maps.
Erica Jacobsen shares highlights from the June 2017 issue of the Journal of Chemical Education that are of special interest to high school chemistry teachers.
I try to examine activities an multiple levels. First on the list, I want to know if my students will be engaged and learn something. Second, how difficult is it for me as a teacher to actually pull it off? One of the most important questions...are the students learning chemistry or just having fun? This is the first year I have attempted the following activity. Students were engaged in the real world connection, they asked questions, it transitioned into some chemistry concepts and even some parents got involved. The activity involved acid, bases, pH and food.
Erica Jacobsen shares highlights from the May 2017 issue of the Journal of Chemical Education that are of special interest to high school chemistry teachers.