Science teachers

"This particular algal species, commonly found in polluted water, is often referred to as "pond scum". As the movie switches to a 20x lens and then the 40x, watch closely, toward the center of each cell in the strand, for the cell nucleus. It's right near the middle and shows as a round object that is near transparent, but once you see it, you will see others. "

Step by step comparison interactive guide between mitosis and meiosis

NOVA animation comparing mitosis and meiosis.  Also includes brief explanations of what happens in developing egg cells versus sperm.

"Most of the time, when a cell in our bodies divides, each new cell carries a complete set of chromosomes. The cells involved with human reproduction, however, carry only half after division occurs. In this step-by-step explanation, learn about mitosis and meiosis, the two types of cell division."

"The challenge for science teacher educators is to develop pedagogies and employ technologies which embrace "communities of practice" as core to both science practice and teacher learning."

Great animations

"The longer-term effects of Moylan's hoax on Whitehaven Coal and the fossil fuel industry more broadly have yet to be seen. It may prove to be no more than a cri de coeur, but it does raise afresh the question of the use of civil disobedience in climate campaigns."

animation of neuron action potentials showing changes in charge

Contracting a muscle--animations showing the steps of contraction and useful rope analogies

Microsoft resources & tutorials

"ASTRONOMERS have discovered what may be five planets orbiting Tau Ceti, the closest single star beyond our solar system, the temperature and luminosity of which nearly match the sun's. If they are planets, one is about the right distance from the star to feature mild temperatures, oceans of water, and even life. Don't pack your bags just yet, though: the discovery still needs to be confirmed."

"This demonstration shows pupils how the seasons on Earth are due to the Earths angular tilt and its orbit around the Sun. It also shows how you can demonstrate the seasons with easy experiments in the class room."

"So, the Earth pulls on the moon because of gravity? Why doesn't the moon get pulled into the Earth and crash? What a great question."

"Here's how to build a straw rocket from paper, sticky notes, and tape using just a pencil and scissors. The sticky notes allow students to easily change the tail fins to see what works best. Fifth grade students constructed straw rockets like this during engineering week talks at elementary schools. "

Science song that illustrates the difference between a control, dependent and independent variable.

"Had fun today at #stav2012  showing junior science videos, including this one I made a few years ago for +BlipTV where I used glove puppets to teach multicelular organisms."