Science (273 programs)

Pros: 4 different levels. Many different types of fractions. 90 different examples.

Cons: Not enough examples if you use it regularly.

Pros: Uses 6 governmental sources to precisely display the world. Look for famous landmarks. Take a closer look at the moon. Follow the Lewis & Clark trail across America. Highly usable.

Cons: Sluggish when it comes to image resolution. The closer you zoom in the more information overcrowds your screen. Search function can be erratic.