What does Melody learn about friendship during the trip to the aquarium in out of my mind?

During the trip to the aquarium in "Out of My Mind," Melody learns that true friendship involves understanding and support, regardless of differences. She realizes that her classmates, despite their initial reluctance, can be kind and inclusive when they see her for who she truly is. This experience helps her appreciate the value of genuine connections and deepens her desire for acceptance and companionship. Ultimately, Melody discovers that friendship can flourish when others embrace her strengths and unique perspective.