In Andrew Clements's Frindle, even though he is not really a troublemaker, Nick most loves to disrupt class by doing things out of the ordinary. He is extremely creative, far more creative than the average person. As a creative person, he is bored easily and feels the need to, as the narrator phrases it, "liven things up," or to give Lincoln Elementary School a "good jolt once in a while" (7).
We first learn Nick is a far more creative person than average in the opening chapter, when the narrator describes Nick as having "plenty of ideas" and knowing just "what to do with them" (5). We see examples of Nick acting upon his creative ideas throughout the story. The first passage describing Nick's love of disrupting class through acting upon creative ideas is the one in which we are told Nick once turned his third-grade classroom into a tropical island paradise during February in New Hampshire. The tropical paradise was complete with paper palm trees, paper flowers, and even "ten cups of fine white sand" (6).
The second passage depicting Nick's creative means of disrupting class describes Nick as tricking his fourth-grade teacher by imitating the high-pitched chirp of a red-winged blackbird. He learned on TV that red-wing blackbirds trick hawks by letting out high-pitched chirps; due to the nature of how sound travels, the hawks are unable to tell where the sound is coming from and hunt in the wrong direction. Upon seeing his teacher resembles a hawk, Nick gets the idea to test out the sound theory he learned, and sure enough, his teacher is unable to tell he is making the noise and cannot put a stop to it.
The third passage describing Nick's love of interrupting class by carrying out creative ideas explains he frequently interrupts class by asking what he calls a "delaying question," or "thought-grenade," that gets the teacher off topic, distracting the teacher from doing things like assign homework. In Mrs. Granger's class, Nick asks where words come from, a "thought-grenade" that drives Nick to invent his own word, leading to the story's conflict and resolution.