It was a toast to teaching at the White House Thursday night as more than 50 of the nation's top educators gathered for the first-ever Teachers of the Year State Dinner. "How can we be the most powerful country in the world without having the best education system in the world?" President Joe Biden -- who made a surprise appearance -- said, drawing applause during the dinner event honoring America's Teacher of the Year. In prior years, the teacher would be awarded a golden apple at a less formal White House ceremony.