To complete the renovation, modernization and expansion of its schools, including replacement of aging roofs, inefficient heating, energy, and ventilation systems, windows, plumbing and restrooms, to create a performing arts center to serve all students and the community, a science center at each elementary school, and restore fields and reconfigure dropoff areas to improve student safety, shall the Castro Valley Unified School District issue $16,800,000 in bonds at interest rates within the legal limit?