A Free Online Toolkit for Math and Science Courses

Desmos Calculator, courtesy of Desmos.com.

Desmos Calculator, courtesy of Desmos.com.

We’ve assembled an online set of tools for use by a teacher or tutor looking for high quality free resources, or by a student who needs a little math, physics, or chemistry homework help. The following resources have been selected by our editors as representing the best of what is offered freely on the Internet. Continue reading

Lewis Dot Learning Resources

Lewis structure for Water

Whether you are a student, trying to master the drawing of Lewis Dot (aka electron dot or electron structure) diagrams for the first time, or a teacher, trying to find some resources to spice up or reinforce your classroom lectures, a lack of Google search results is likely not your problem!  Depending on your search terms, you may get 1,000,000 hits.  With so much information, how do you filter through the results (or even the first page or two) and find exactly what you are looking for without wasting all of your study or class prep-time trying to narrow them down?

That is where we come in. The purpose of this page is to give you a helping hand in finding the best Lewis Dot resources. We’ve identified what we believe are some of the best examples of written, video and learning activities for learning Lewis structures. Each resource type has the potential to improve learning about Lewis dot diagrams in a different way depending on your teaching or learning style and/or students’ needs. Your reactions may be different — so if you disagree with our assessments or think we’ve missed a hidden gem, please leave a comment and share the Lewis dot love, so to speak. Continue reading