(e)Xperience ChemEd X through the ideas and opinions of its community members.
Xperience is where contributed, but not reviewed, ChemEd X resources such as blogs and opinion pieces are found. Here you can find blogs in which our contributors express their personal empiricism and polls in which you the community can provide your opinions.
What's a better way to start the new school year than with some new experiments? Learn how to use a variety of color changing experiments to teach students about the Diet Coke and Mentos experiment, acids, bases, chemical and physical changes, and climate change.
Many teachers have students draw models and diagrams to help them illustrate how matter behaves. Teachers can uncover and address possible misconceptions quickly using this strategy. The author describes how to create interactive particle diagram activities that are easy for students to use online. This strategy is applicable to almost any particle diagram and should be useful for teachers during virtual lessons.
Two important types of information obtained from ice cores comes from the bubbles in the glacial ice and the stable oxygen and hydrogen isotopes within the frozen water molecules themselves. This post describes how the bubbles (air pocket 'fossils') and stable isotopes are used to determine the concentration of gases in the ancient atmosphere, particularly in relation to past temperatures.
Card sorts can be used to quickly assess student understanding. The author has modified two card sorts on photoelectron spectroscopy and intermoleculer forces for use either remotely or in a paperless classroom.
The author describes how he will format his chemistry labs including the use of PhET simulations in his remote classroom this fall.
As many teachers are preparing to teach online, we are revisiting posts from the ChemEd X archives like this one that might be of help. The original Build a Boat challenge was used to help create a classroom culture of teamwork and growth mindset. The author has updated the Build a Boat activity by providing a modified slide show presentation specifically to help those teaching remotely this fall.
Teaming up with a STEM Science Coach or mentor can be rewarding to both you and your students. I was surprised at the impact a science mentor has on students when I recieved an email from a former student.
If you only have a few weeks of in-person labs this fall semester, consider this lab content reorganization.
The application of Hess's Law frequently presents students with conceptual problems. This series of experiments confirms Hess's Law and offers a robust understanding of this principle. This can be done as a demo completed by the teacher or as a lab with groups of students.
As autumn approaches it is that time of year to begin canning fruit like peaches. In canning light colored fruits, a chemical pretreatment is used to prevent darkening. This blog describes a classroom activity comprised of questions related to the chemistry of the pretreatment solution. The questions focus on the seminal topics of concentration and molecular structure.