Some teachers from Cook County school district in Illinois requested some enhancements for my site. The test version debuts on this lesson:
The old quadratic lesson showed you the answer and math work. The new quadratic lesson shows you how to plug back in the answers you got to prove the answer you got was correct, as well as a random quadratic problem generating button that generates random quadratic problems.
Let me know if you find errors or want enhancements.
2 more enhancements:
1) There is another button to give you hints, 1 at a time. Each time you press the button, the next applicable section of math will be revealed to you. When the last hint is given and the answer is shown, a message will pop up letting you know the problem is complete.
2) The answer and math work will now show irrational answers as well instead of "No Solution" with i representing