21st Century High-Performing Public School Facilities Act of 2006

21st Century High-Performing Public School Facilities Act of 2006 - Requires the Secretary of Education to make grants in each fiscal year to local educational agencies (LEAs) in each state for the construction, modernization, or repair of kindergarten, elementary, or secondary schools to make them safe, healthy, high-performing, and technologically up-to-date. Gives priority to LEAs serving a high number or percentage of disadvantaged children and those whose public schools are in relatively poor condition. Requires LEAs to contribute funds toward the costs of the program, but uses a sliding scale that factors in the relative poverty of an LEA's service area.

Requires the Secretary to make low-interest loans to LEAs in each fiscal year for the same purposes and with the same priorities given in the distribution of the grants.

Establishes the School Construction, Modernization, and Repair Revolving Fund consisting of amounts derived from the low-interest loans and appropriations made to the Fund by this Act.

Amends part D of title II of the Elementary and Secondary Education Act of 1965 to authorize and make appropriations for educational technology.