Sec. 3. The general management, supervision, and control of the public schools and of the educational interests of each county adopting the provisions of this law shall be vested in the County Board of School Trustees for such county-wide district. Any such county-wide school equalization district formed in the manner hereinabove provided may levy and collect annually on all taxable property in the county an equalization tax not to exceed twenty (20) cents on the one hundred dollars valuation of property situated in said county and the money derived from such tax shall be known as an Equalization Fund for the support of the public schools of the county, which Fund shall be distributed to the school districts of the county as provided herein.