We got Maggie when Ella was 4 years old. Now Maggie is 3 and Ella is 7.
After we had had Maggie a few months, she began learning some tricks. After the usual sit, lay down, and stay, Ella decided Maggie should learn how to "crawl", since she was a baby dog. Never mind that Maggie ran like the wind, fast as Ella. One of their favorite games being Ella running around the backyard yelling "Maggie chase me!", which Maggie gladly obliged.
After many tries and a few days later, Ella had taught Maggie how to crawl. It starts like "lay down" and then the dog crawls. Amazing. She has also taught her "paw" and "other paw" which is pretty self-explanitory.
The most recent accomplishment is called "Find it". Ella tells Maggie to sit and "wait" which Maggie does while Ella goes in the other room and hides a dog treat. After about 5 seconds, Ella comes back and yells "find it!". Then Maggs goes tearing into the other room, and finds the treat. It amazes me that a little kid can "speak dog" so well, but then, she is a remarkable kid!