North Suburban Math League (NSM)
North Suburban Math League (NSML) was founded in 1977 by a group of high school teachers from the Chicago area with the hope of encouraging students to work on interesting mathematics problems by engaging in competition. Today, over 2,000 students from 50 schools participate in NSML and the league has gained national attention as one of the foremost regional mathematics competitions in the U.S.
The NSML hosts five meets a year in which four competition levels are offered (freshman, sophomore, junior and senior). Each level contains 5 free-response problems involving a certain topic (e.g. factoring, vectors, similarity, modular arithmetic, limits, etc.).
The NSM database contains more than 1875 problems that have appeared in previous competitions, and is updated yearly. All of the problems have been rearranged by topic and are fully indexed, in case you want to recreate a particular competition. This type of structure makes the NSM database an excellent resource for your math team and for regular classroom instruction.