for "teen kids news," i'm jaime colby, "fox news channel in the classroom." >> ever take a close look at your state flag? you should, because you might be surprised at how much you can learn from it. here's scott with this week's lesson. >> in 1803, president jefferson made one of the greatest land deals in history. the louisiana purchase doubled the size of the united states. eventually, the area would make up all or part of 15 new states, including kansas. >> kansas is a flag meant to represent "manifest destiny." there are three separate images of people on the flag, all moving westward. >> manifest destiny was the belief that the american expansion across the continent was both inevitable and justifiable. >> in the foreground, you see a farmer plowing his land. just beyond the farmer, you see a wagon train, also heading west. in the background, you see native americans hunting bison. there's also a steamboat on the kansas river, meant to represent commerce. life for the pioneers was not easy, and the state motto is "ad astra per aspera," which means "to the stars through difficult