State law recommends that time for PE in elementary school meets National Standards (150 min/week).
Interagency Obesity Council Report
This document addresses provision of amount of time provided for PE
Texas Education Code Sec. 28.002. REQUIRED CURRICULUM
(l) A school district shall require a student enrolled in full-day prekindergarten, in kindergarten, or in a grade level below grade six to participate in moderate or vigorous daily physical activity for at least 30 minutes throughout the school year as part of the district’s physical education curriculum or through structured activity during a school campus’s daily recess.