questions heli jon. kind of bending down with my phone on google, looking up which countries are safest and which ones are taking in the most refugees, because this was not a topic i was planning to discuss with a four-year-old. reporter: paisley s curiosity became a call to action. that s the reason for her trip to uganda, where, with the help from some experienced adults, she plans to deliver these do-it-yourself school desks. it s made out of 100% sustainable wood. reporter: interlocking pieces that can be transformed into a pop-up classroom. there s also a toolbox with pencils and learning kits, made for hundreds of kids in a refugee camp. why do you stick with this? if we do not help them because the adults aren t, then who will help them have a better life? i mean, they re just like you and me. reporter: paisley will deliver the first portable classrooms at the end of the month, while teaching a lesson to all of us about caring. omar villafranca, cbs news, grapevine,