US/World Beginner Combo Classroom Map on Roller The U.S./World Beginner Wall Map Combo is a best seller value. Both wall maps come mounted on one pull-down spring roller for space saving convenience. Colorful maps show the US and World in easy-to-identify land masses and major bodies of water. The US Map shows state names and capitals#44; plus flags for all 50 states#44; while the World edition The maps are designed for pre-K through 1st grade curriculum.