Montgomery Township School District has one Elementary, one Middle and on High School. Elementary is split K-2 in Orchard Hill, 3-4 in Village Elementary. Similarly, 5-6 is at Lower Middle School (LMS) and 7-8 is at Upper Middle School (UMS) and then the High School.
All Montgomery Township students attend Orchard Hill for K-2 (and pre-K if you choose).
All Montgomery students then attend Village Elementary for grades 3&4.
All Montgomery students then attend Lower Middle School for grades 5&6 and the Upper Middle School for grades 7&8. All Montgomery students then attend the High School for grades 9-12.
This is the way they have set it up in our town. We have excellent schools with stellar teachers.
You can research it more on GreatSchools: http://www.greatschools.org/new-jersey/skillman/Montgomery-T