; (C) ambitious but achievable goals to increase diversity over the course of the grant period; (D) collection and analysis of data to provide transparency and support continuous improvement throughout the grant period; and (E) a rigorous evaluation of the effectiveness of the proposed project. (2) Implementation grants activities Each eligible entity that receives an implementation grant under this part may use the grant funds to carry out one or more of the following activities: (A) Recruiting, hiring, or training additional teachers, administrators, and other instructional and support staff in new, expanded, or restructured publicly funded early childhood education programs or public elementary schools or secondary schools, or other professional development activities for staff and administrators. (B) Investing in specialized academic programs or facilities designed to encourage inter-district school attendance patterns. (C) Pursue or initiate a transportation plan for bringing students to and from publicly funded early childhood education programs and public elementary schools and secondary schools, if such transportation is sustainable beyond the grant period and does not represent a significant portion of the grant funds received by an eligible entity under this part. (c) Rule regarding use Nothing in this section shall be construed to authorize an eligible entity to carry out activities authorized under this section in a manner that violates Federal law. 4556. Performance measures The Secretary shall establish performance measures for the programs and activities carried out through a grant under this part. These measures, at a minimum, shall track the progress of each eligible entity in— (1) improving academic and other developmental or noncognitive outcomes for each subgroup described in section 1111(b)(2)(B)(xi) that is served by the eligible entity on measures, including, as applicable, by— (A) increasing school readiness; (B) increasing student achievement and decreasing achievement gaps