Let's keep in mind that Burning Tree's scores are quite high--not as high as Somerset's, but still very, very high compared to other MCPS public elementary schools. I did not realize that Somerset has such an international population, but when I looked at the MCPS web site, I saw that it does have a very high ESOL population--nearly 14 percent. Another factor to consider--Somerset does not have a specialized learning program for kids with special needs--as a result, while only 7.5% of the kids have special needs at Somerset, 14.4% of the population at BT is in special ed--this affects test scores as well. If I can make one point, though, it's that choosing schools based on test scores is short-sighted. Scores say much more about the wealth and education of the families in the neighborhood than the quality of the teaching at the school. Just look at the link below--if you are familiar at all with the neighborhoods in Montgomery County, you will note that the schools with the highest scores are, generally speaking, in the wealthiest areas. In fact, the County allocates the most resources to the most struggling schools. For small class sizes and other "extras," you may be better off at one of the schools with high FARMS rates and low test scores. The County also often sends its strongest teachers and principals to the low-performing schools to help them turn things around. If you are unsure about a school, visit it and talk to families there, and get their reactions. All schools have pros and cons...
http://www.montgomeryschoolsmd.org/departments/regulatoryaccountability/glance/currentyear/schools/02419.pdf