The mole concept is fundamental to chemistry but teachers and students have often struggled with the details. On September 9, 2021, Krystle Moos shared her unit covering the mole concept during our first one hour ChemBasics Talk. You can view a recording of her presentation and access her materials including linked NGSS standards, introductory activities and handouts, manipulative activities, practice problems, links to real world context, a lab and an assortment of videos here. This content was shared with the new teacher in mind but it is likely that experienced teachers will appreciate this content as well.
After the presentation, participants chose breakout rooms on a variety of topics including, Exploring the Lesson Further with Krystle; New Teachers for Chemistry Majors; New Teachers for Science Composite Majors; Lab Extensions; Technology Extensions; Manipulatives and Student Misconceptions. To encourage sharing, these breakout rooms were not recorded but teachers that attended the ChemBasics Talk have access to notes from every breakout room recorded on a Google Slide presentation for their use. When the group came back together, there was a great deal of enthusiasm expressed about the breakout room discussions and the resources shared there.
ChemEd X ChemBasics Talk Recording: Edited video of Krystle's ChemBasics Talk - The Mole Concept, ChemEd X Vimeo Channel (9/13/2021)
Access to Materials Shared by Krystle
The Mole Concept Presentation Slides
About Krystle
Krystle Moos teaches high school and AP chemistry in Texas. She is a lead teacher / facilitator for APTeach and was honored as her region's Secondary Teacher of the Year for 2021!
Join us!
We hope you will watch the schedule and register to attend an upcoming ChemEd X ChemBasics Talk! After the presentation, we have a variety of breakout rooms before coming back together for a follow up discussion. Participants are sent Google Slides on which participants shared ideas and resources in the breakout room discussions and they can also complete a quick survey that allows them to download a certificate of attendance.
To find the schedule of future ChemEd X ChemBasics Talks as well as more recordings of previous Talks, see ChemEd X Talks, ChemBasics Talks - Schedule and Recordings.
NGSS
Students who demonstrate understanding can use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.
*More information about all DCI for HS-PS1 can be found at https://www.nextgenscience.org/dci-arrangement/hs-ps1-matter-and-its-interactions and further resources at https://www.nextgenscience.org.
Students who demonstrate understanding can use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.
Assessment does not include complex chemical reactions.
Emphasis is on using mathematical ideas to communicate the proportional relationships between masses of atoms in the reactants and the products, and the translation of these relationships to the macroscopic scale using the mole as the conversion from the atomic to the macroscopic scale. Emphasis is on assessing students’ use of mathematical thinking and not on memorization and rote application of problem - solving techniques.