A State, local educational agency, or eligible Tribal school that receives a grant under this section shall use the grant funds for the following activities: (A) Training teachers to teach computer science. (B) Expanding access to high-quality learning materials and online learning options. (C) Creating plans for expanding overall access to rigorous STEAM classes, utilizing computer science as a catalyst for increased interest in STEAM more broadly, and reducing course equity gaps for all students, including underrepresented groups such as minorities, girls, and youth from low-income families. (D) Ensuring additional support and resources, which may include mentoring for students traditionally underrepresented in STEAM fields. (2) Permissible activities A State, local educational agency, or eligible Tribal school that receives a grant under this section may use the grant funds for the following activities: (A) Building effective regional collaborations with industry, nonprofit organizations, 2-year and 4-year degree granting institutions of higher education (including community colleges, Historically Black Colleges and Universities, Hispanic-serving institutions, Asian American and Native American Pacific Islander-serving institutions, American Indian Tribally controlled colleges and universities, Alaska Native and Native Hawaiian-serving institutions, Predominantly Black Institutions, Native American-serving, Nontribal institutions, and other minority-serving institutions), and out-of-school providers. (B) Recruiting and hiring instructional personnel as needed, including curriculum specialists. (C) Preparations for effectively sustaining project activities after the grant period ends. (D) Disseminating information about effective practices. (3) Limitation Not more than 15 percent of a grant may be used to purchase equipment. (d) National activities The Secretary may reserve not more than 2.5 percent of funds available for grants under this section for national activities, including technical assistance,