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JCE ChemEd Xchange provides a place for sharing information and opinions. Currently, articles, blogs and reading lists from ChemEd X contributors are listed below. We plan to include other items that the community wishes to share through their contributions to ChemEd X.

Lab Report Feedback, Part 1: Using Drawboard PDF on a Tablet to Provide Feedback on Student Labs

Throughout my 21 previous years as a teacher, I have really struggled to provide meaningful (and timely!) feedback to my students on their lab reports. Teaching IB Chemistry has really forced me to get better - and I have. Yet I still feel like this is an area for more improvement.I've got a series of blog posts planned to share some ideas with you - and hopefully garner some discussion that will be helpful for me also! First I'd like to share the mechanics of how I provide feedback.

What the MOLE?

mole definition

What is your definition of the term “mole” in chemistry? Many articles have been written about the term and the confusion surrounding it. It was not considered an SI unit (with an IUPAC definition) until 1971. IUPAC is considering a change to the 1971 definition. There has been discussion about whether the SI definition of the mole as determined by IUPAC necessarily needs to be identical to the definition used by chemists and teachers. This article provides a short list of some recent JCE articles discussing the change and what it might mean for teachers while also considering some misconceptions related to the mole in chemistry class.

 

JCE 92.08—August 2015 Issue Highlights

Journal of Chemical Education August 2015 Cover

Using Models and Modeling To Teach

The August 2015 issue of the Journal of Chemical Education is now available online to subscribers.  This issue includes articles on modeling instruction; Lewis dot structure model; molecular models; using models to teach crystal symmetry; introductory activities and labs; organic chemistry investigations and tools for engagement; enabling chemistry training for low vision or blind students; chemical education research in the literature; celebrating the work of Melanie Cooper; forensic chemistry articles from past issues.

Addressing Student Misconceptions Using Modeling Instruction

Modeling Instruction

As school districts across the country approach the implementation of the Next Generation Science Standards, students will be required to develop models to illustrate what occurs at an atomic level as well as apply various mathematical representations in order to explain a science-based concept. However, what opportunities are we providing our students to allow them to explain what they know about a concept? Students should be provided with regular opportunities to develop and explain concepts, which in turn will allow teachers to formatively assess and address misconceptions.   

Rust

Rust

A great book for summer reading is "Rust: the longest war".

Cars rusting! Bridges collapsing! Rust, and corrosion in general, is probably the most important topic that is not on most people's radar. This is definitely something people should be paying more attention to.

Chem Ed 2015 ~ Conversations at Kennesaw State University

Chem Ed 2015 at KSU

What a mole-riffic time we are having here in Kennesaw, Georgia!  Some highlights from my time here include:

~ The very appropriate cooling towels (Chill-its) we (ChemEd X) handed out to folks who stopped by our table, ran the Mole Run, or we saw between sessions. Several teachers have been diving in to research how they work.  Chemistry in action!