As we forge ahead into the new year, let’s take some time to thank the intrepid researchers, volunteers, and even the occasional dog who came before us, made sure our food and drugs are free from poison, and built the devices that make...

The DNA inside our cells almost exclusively twists in one direction, but the reason for this might be out of this world!

Howcast - Learn how to make an origami ninja weapon with this origami video from Howcast.

Optical isomerism occurs in molecules that are chiral, meaning they cannot be superimposed on their mirror images. These isomers, known as enantiomers, differ in their optical activity—they rotate plane-polarized light in opposite...

Mr. Addit defines the terms: congruent figures and lines of symmetry. He then models how to determine if figures are congruent and where lines of symmetry can be drawn.

Symmetry defines symmetry and lines of symmetry and separates a group of shapes into two categories: symmetrical and nonsymmetrical.

A video entitled “Congruent Figures and Symmetry” which models how to determine if figures are congruent and where lines of symmetry can be drawn.

How are the contents of animals organized? How does this differ from animal to animal? Are all animals symmetrical, and in the same ways? Just a bit more information to get through before diving into all the animal phyla, I promise!

Looking at interesting molecules in virtual reality that possess no chiral centers.

Defining stereochemistry and enantiomeric relationships.

In this lesson, students will learn about reflections in linear equations. They will explore how the functions F of X and G of X are alike and different, focusing on the slope and Y-intercept. Through examples and a table of values,...