1770-1838 1786-1884 4acceleratedreadingpoints 8acceleratedreadingpoints babies behavior brothersandsisters changesandnewexperiences children'sfiction children'sstories children:grades3-4 clark familias families family familylife ficciónjuvenil fiction hermanos humorousfiction humorousstories indiansofnorthamerica juvenilefiction largetypebooks lewisandclarkexpedition(1804-1806) moving newschool sacagawea shoshoniindians siblings unitedstates william