Illustrating the angles subtended at the eye by one lamp and the image of the other as seen in the mirror.
A simple practical activity that uses various methods to help students understand the idea of the expanding universe.
Using a Predict-Observe-Explain cycle in fostering college students' scientific explanation on concepts of velocity and acceleration in a small-gro
Learn how to set up a hydrogen fuel cell by extending an activity most schools already do – the electrolysis of ‘water’.
A progression leading to understanding falling towards Earth is presented.
Well, of course you know that a battery is made of cells in series, but I have just discovered a great way to show this to a class.
Practical approaches to teaching about energy and developing understanding.