MIT’s SPARK offers students in Grades 7 and 8 a variety of short, interesting classes on the MIT campus over one weekend, March 11-12.  The registration lottery is open now through February 28, and until that deadline all course preferences will be treated equally in the lottery.  Starting March 1, any remaining seats will be open first-come/first-served.  Students may choose from 96 STEM courses (plus 100 other courses) and must register on their own.  To ensure a full schedule, rank your top three classes and then star at least 10 classes per time block. A $40 fee covers two days of classes and lunch and lots of walk-in activities.  Generous financial aid is available.  For more information not covered here, email spark@mit.edu.  The STEM courses are listed here.