Why were some episodes out of order?
"Pool Party" was the pilot that introduced all the characters but "Rumors" was the first aired episode.
"Just Like Lizzie" was the start of them beginning their 8th grade year. But "First Kiss" was the first episode of season 2.
"Bye Bye Hillerage Jr. High" marked the ending of middle school and Lizzie preparing for high school. But "The Magic Train" was the last episode aired.