- Coefficient Guess and Check: A GeoGebra sketch to help students connect symbolic and graphical forms. Took me a while to figure out the number right feature, but it was worth it. This sketch lets students guess whether coefficients are positive, negative or zero, given the graph of an equation. The sketch tells them how many are correct, but not which ones, allowing for further reasoning.
- 10 Ways to Solve a Quadratic Equation: http://www.mathman.biz/html/10waystosolveaquadraticeq.html
- Interactive Factoring of Quadratic Equations: http://coolcatteacher.visibli.com/share/ZP4O19 A worksheet generating and factorising expressions randomly. The randomly derived questions can be selected using an Option Box x2 + bx + c (grade B) ax2+ bx + c (grade A) The method employed for factorising into brackets utilises sums and products to split the x coefficient term and grid
Quadratic equations are hard for students to grasp, let alone teach. Here are three resources you can use that are interactive and let the students try problems on their own. The second one are just more ways of solving quadratic equations, by example.