I am Johann Sebastian Bach Xavier is pumped to once again rock the school talent show with his rendition of Hot Cross Buns on the recorder. Only problem is, he hasn't exactly improved since last year's performance. In fact, he may have gotten worse! How could this happen? And what can he do about it? To the Secret Museum! Xavier and the gang go back in time to meet someone who knew exactly how to rock out to the max: Johann Sebastian Bach. Joining Bach as he works on his song over and over again, learns all he can about his instrument, and travels miles by foot to watch other musicians play helps Xavier to see there's only one way he can get better on the recorder: he'll have to work hard and practice. Curriculum: "If you want to get better at something, you have to work hard and practice." I am Marie Curie Brad is crestfallen when he shows up for his first meeting of the Butterfly Club, only to find out it's for kids 7 and up. And he's only 6! Does this mean he'll never get to learn more about his beloved butterflies? To the Secret Museum! Brad and the gang travel back in time to meet someone who never let anything stand in her way: Marie Curie. Marie dreams of one day being a scientist, but those dreams seem to shatter when she finds out girls aren't allowed to go to university. How silly! But, Marie doesn't let that stop her; she finds her own secret university where she can learn, then starts up her very own lab and makes an amazing scientific discovery! Marie Curie inspires Brad to follow his dreams no matter what. Curriculum: "Follow your dreams, no matter what."