The Simons Foundation Powering Autism Research for Knowledge (SPARK) is hosting a free online webinar this Thursday (July 7th) from 1:00pm to 2:30pm EST, which will discuss why challenging behaviors occur in children with autism and ways for parents and teachers to prevent them. The webinar will include a 15-minute Q & A session at the end. Click here to register. You may also submit questions before or during the seminar to Alexandra Stephens, webinar host, at astephens@simonsfoundation.org.