Tennessee Investment in Student Achievement (TISA) - As introduced, expands the category of students who are considered economically disadvantaged for purposes of generating a weighted allocation through the TISA funding formula to include students who are enrolled in the state's medicaid program. - Amends TCA Title 49.

HB 2300 expands Tennessee's TISA funding formula to include students enrolled in the state's Medicaid program as "economically disadvantaged," directly affecting those students by making them eligible for additional state funding. The bill amends the definition of "economically disadvantaged" in education law to add Medicaid enrollment (subdivision C) alongside existing categories like homeless students or those qualifying for free school meals. This change ensures schools receive extra weighted funding for these students starting with the 2026-2027 school year. The policy shift aims to align state funding with federal eligibility criteria under the ESSA plan.