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Bonding and Interactions

Ionic Covalent Compounds and Card Sorts

Chad Husting | Thu, 02/02/2017 - 19:10

Card sorts are a great way to achieve a number of classroom objectives.  They can be used as a review activity or they can be done during the middle of a lesson as a type of formative assessment. Sorts can encourage students to work with other students or can even be used as a type of exit ticket. I decided to use the strategy about two thirds of the way through a unit on covalent and ionic compounds and lewis structures. I knew there were items we did not cover in the sort but I was curious to see how they would approach these unknown topics.  

Kool-aid, Cotton, and Intermolecular Forces

Tom Kuntzleman | Tue, 10/04/2016 - 19:59

Red dye #40 found in strawberry Kool-Aid and various cloth fibers can be used in a very simple experiment that can teach students about intermolecular forces. A video is included that describes the experiment and analysis of results. 

Interactive Bonding Resources from PBS

Erica Posthuma | Sun, 04/17/2016 - 09:14

One of the resources we have vetted is an interactive slideshow from PBS on both ionic and covalent bonds.  Teachers using Modeling Instruction will find these resources elucidate a model of electron behavior which adds to the particle story of matter we have been telling throughout the year.