; and (2) measuring progress by State educational agencies receiving grants under this section. 6. National evaluation (a) In general Not earlier than 4 years after the date of the enactment of this Act, the Secretary shall contract with an independent organization for a comprehensive, scientifically valid, and quantitative evaluation of the performance and effectiveness of the activities funded by grants received under this Act in improving the availability and quality of computer science education, the overall participation rate of students in computer science courses, and the participation rate of students underrepresented in computing in computer science courses. (b) Reporting requirements (1) Initial report Not later than 5 years after the date of the enactment of this Act, the Secretary shall submit to Congress a report on the results of the evaluation described in subsection (a). (2) Report updates Not later than 2 years after the date on which the Secretary submits the report required under paragraph (1), and biennially thereafter, the Secretary shall submit to Congress an update of such report. 7. Expanding teacher preparation programs for computer science teachers (a) Computer science model teacher preparation program Part B of title II of the Elementary and Secondary Education Act of 1965 ( 20 U.S.C. 6661 et seq.) is amended by adding at the end the following: 2204. Computer science model teacher preparation program (a) Establishment The Secretary is authorized to award grants to institutions of higher education to improve training for elementary school and secondary school computer science teachers. (b) Eligibility The Secretary shall award a grant under this section to an institution of higher education that— (1) has, at minimum— (A) a program in teacher education; and (B) a program in computer science or informatics