From the publisher:* new edition of John Mighton's revolutionary math workbook gives every child the tools to master math. The key to the enormous success of Mighton's JUMP Math Program is a step-by-step teaching method that isolates and describes concepts so clearly that anyone can understand them. Students move from one success to the next and soon are solving problems well above their grade level. The new editions feature: suggested activities and sample lessons for parentsimproved layout and organization of worksheetssimpler language and clearer instructionsmore activity-based and problem-based lessonsupdated answer keys