STEM Master Teacher Corps Act

STEM Master Teacher Corps Act - Amends the Elementary and Secondary Education Act of 1965 to direct the Secretary of Education to award competitive, matching five-year grants to consortia of local educational agencies (LEAs) or states, acting in partnership with institutions of higher education or nonprofit organizations to establish a STEM (science, technology, engineering, and mathematics) Master Teacher Corps program.

Requires grantees to: (1) select exemplary elementary and secondary school STEM teachers for membership in the STEM Master Teacher Corps; (2) provide those teachers with compensation that supplements their base salaries; (3) provide, and track the effectiveness of, research-based training for Corps members; (4) provide discretionary resources for Corps members at high-need schools to use; (5) help coordinate instructional leadership and mentoring roles for Corps members; and (6) facilitate efforts by Corps members to inform STEM education policy at the national, state, and local levels.

Gives grant priority to applicants that intend to include: (1) large numbers of teachers in the STEM Master Teacher Corps; and (2) rural schools, particularly high-need rural schools, in the area they serve.

Requires grantees to ensure that at least 75% of their STEM Master Teacher Corps are teachers at high-need schools.

Directs the Secretary, acting through the Director of the Institute of Education Sciences, to: (1) evaluate the STEM Master Teacher Corps program; (2) identify optimal strategies for designing and advancing such program; and (3) identify best practices for developing, supporting, and retaining STEM teachers based on lessons learned from the program.