The Newton Schools Foundation is looking for individuals who have made a positive impact on the city’s public schools to be honored at its Celebration of Excellence spring benefit gala May 3. The nominees may include employees and alumni of the school system as well as business or community leaders. The nomination deadline is March 15. Submissions of 150 words or less explaining the nominee’s impact on the schools must include the name and e-mail address of both the person writing and the nominee, and the name and address of any school with which the nominee has been affiliated. Submit nominations by e-mail to email@example.com, or mail them to Newton Schools Foundation, c/o Celebration of Excellence, 246 Dudley Road, Newton Centre, MA 02459 . The fund-raising event will feature a performance by comedian Jimmy Tingle, gourmet food, and music by Loose Change, a band featuring Newton educators. For more information, call 617-559-6120 or visit www.newtonschoolsfoundation.org.