Hal Harris

If you are teacher of chemistry, you probably already know something about graphene, the first and only two-dimensional material.  As you probably know, graphene consists of a single layer of the familiar graphite carbon hexagons that we teach about in introductory courses.

For those of us who think that public schools are best kept free of religion, the Supreme Court dealt a severe blow with the 2001 decision in the case of Good News Clubs versus Milford Central School.

What would happen if you collected samples of each of the elements starting with hydrogen, then helium, then lithium, and so on, stacking cubic samples of each element one on another, to build a tangible Periodic Table Wall. How far could you go before you died of explosion or poisoning, and what would get you first?

As the world population grows toward seven billion, it remains unclear whether food production can be increased sufficiently to feed all of those people, even at levels well below what developed countries consume now.

Parents are rebelling against the Common Core, even though its approach - fostering intuition through real-world examples - is the best way to teach math to kids. The real problem: No one has shown the teachers how to teach it.