Four keys cover PACEs 1037-1039, 1040-1042, 1043-1045, and 1046-1048. Keys are three-hole-punched, and have each page and question number clearly labeled; answers are line-listed, though when part of a graphic (e.g. a map diagram or crossword), that portion is reproduced with the correct answers overlaid. Test and workbook exercises included. 4 Booklets. Grade 4.