Lehman offers numerous co-curricular and extracurricular activities that enrich student life, provide opportunity for additional learning in areas of interest, and help to hone gifts beyond the classroom.
Students participate in an inter‑county school quiz competition normally held in the fall.
Science Olympiad tournaments are academic interscholastic competitions, which consist of a series of 23 individual and team events in all areas of science. The competitions are in March and April, and this activity is open to all interested students. Lehman competes at the regional, state, and national levels.
This selective year-long program offers high school students a unique opportunity to blend personal growth with service to others. As a co-curricular, this program is taught in the classroom and includes extra-curricular activities.
Membership is open to all students and teachers who have an interest in learning about investments. Students work with a broker and purchase shares of stock, then track them for the year, and at the end sell the shares. Money is returned at the end of the school year according to the success of the investment. Each student and teacher who participates is expected to invest $50.00.
The Mock Trial Program is an academic competition designed to foster a better understanding of the American legal system and to encourage development of analytical and communication skills. The program is open to all students in grades 9-12.
Student Council is to be a representative body of students providing the administration with input, insight, and taking an active role in the management of student activities. All students have an opportunity to run for these student positions.