Need advice- 3.5 DS is not behaving at nap. He doesn’t need to take one but should be quiet. He has options to do different things but has been screaming and making loud noises instead. No changes in class. He has been picking up bad behaviors from other kids because i noticed this the last 2 weeks. He says I want to be bad I want to do this and that and not listen to you....

Don’t know what to do. Have an appointment with pediatrician for suggestions.

Any ideas to stop this? TIA