Many former algebra students have painful memories of struggling to memorize the quadratic formula. A new way to derive it, overlooked for 4,000 years, is so simple it eliminates the need.

Learn how to read and plot quadratic graphs with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

The coordinates of the turning point and the equation of the line of symmetry can be found by writing the quadratic expression in completed square form.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...