When Claudia and Jamie were in the museum, what direction did Claudia give Jamie in Chapter 3 of From the Mixed-up Files of Mrs. Basil E. Frankweiler?
When the children reach the museum, Claudia directs Jamie to check his bags.
Claudia has decided to run away in style. She carefully packed her violin case and backpack, and chose her little brother Jamie to accompany her because he had money. They ran away to the Metropolitan Museum of Art, where they could blend in with thousands of visitors, including many children.
When they arrived at the museum, the guards did not seem surprised to see children there. They did require the kids to check their bags.
The guard at the entrance merely stopped them and told them to check their cases and book bags. A museum rule: no bags, food, or umbrellas. None that the guards can see. Rule or no rule, Claudia decided it was a good idea. (Ch. 3)
Jamie does not want to leave his things behind, because he worries that they won’t be able to go back and get it. Claudia thinks it is smart, however, because it gives them a chance to blend in with everyone else. They can go get their bags before the museum closes, and then sneak back in. In the meantime, they won’t have to lug them around. Claudia checks her coat, but Jamie keeps his to “muffle his twenty-four-dollar rattle” from the coins he carries around with him.
The incident with the coat-check demonstrates how Jamie regards himself as an equal, willing to argue with Claudia, but she still can overrule him. After all, she is in charge of this running away endeavor, and although he is treasurer, she is the president. She will make the decisions.