If this cant work, I was thinking I could instead just scrap the clock function.
As in, when power source is activated, buzzer starts chirping. Then the LCD displays a math problem, and using the keypad you have to answer the problem. When its right, it shuts off the buzzer. When wrong it keeps buzzing. The difficult part with this would be to have Arduino code that generates 2 random numbers, adds them together and displays on LCD without the answer. Then inputted answer has to match the one that was calculated.
What do you think??????