The board of education for any district shall cause the school construction program authorized under any school construction bond authorization act and this chapter for such school district to be carried out. Such board of education, with consent of the Department of Education or its designated representatives, shall have power to make and enter into all contracts for school construction and for labor, materials, supplies, instrumentalities, furniture and equipment required to accomplish any such school construction program (including purchase of all educational supplies necessary for the initial operation of school so built, altered or added to), provided that all contracts involving expenditure shall be subject to Chapter 69 of this title.