macdonaldknolls.mcpsmd.org/ 10611 Tenbrook Dr. Silver Spring, MD 20901 39.029770 -77.027168 MacDonald Knolls Early Childhood Center10611 Tenbrook Dr.Silver Spring,MD 20901 Phone: 240-740-5150 Fax: 301-592-9425 Mrs. Sheri L. Anderson, Coordinator Staff Directory