I thought that this book was well written by Claudia Mills. Although I thought that Mrs O'Neill talked too much to the class leaving little room for student learning, I can understand why this was the case for the purpose of keeping the reader interested. I admire Crystal Harding's determination and enthusiasm. She became very passionate about Pluto especially, in why it shouldn't have been unclassed as a planet when it had been for so long. Classes need to have more students like her, showing a passion for learning, thinking critically and being enthusiastic about asking higher level questions. I felt so sorry for Oliver Olson throughout the story. His parents are very "helicopter parents". He wasn't allowed to watch cartoons, go to sleepovers, do his homework, even tie his shoelaces. I am so grateful that in the end, his parents allowed him to go to the space sleepover. This event was an essential part of the unit of work on space, providing the class with an authentic learning experience. I admire Oliver's bravery for standing up to his parents, telling them that they no longer had to do everything for him and he could actually do things himself. It turns out he could come up with some pretty good ideas without his parents' input - having Pluto hold a "Let me in!" sign on the diorama and coming up with a world-changing idea that parents shouldn't be allowed to help with homework. I completely agree with his idea, as students do not learn anything at home when they can get their parents to "help" them with homework. The only other criticism of this book is that I didn't think that Oliver's idea was "world-changing", as he didn't really change the world as a result of his idea. But I get that the title of the book is to do with the class sending world-changing ideas to Senator Levitt.