Panel 1: The mom is trying to make sure the kid has everything for his field trip. He is in a hurry to just leave.
Panel 2: The boy has forgotten the most important thing to bring... his permission slip to go on the field trip. He is calling his mom to try to get her to bring it to him at school.
Panel 1: Mom: You sure you're ready for your field trip?
Boy: Yeah, I got it!
Mom: You have everything? Lunch? Sweater? Money?
Boy: Yeah! I got everything. See you tonight!
Panel 2: Boy: Hi Mom! Will you bring me my permission slip?