For over 15 years John Matthews has taught advanced ceramics, including wheel throwing, large sculptural clay work, and a variety of hand built techniques, at Conestoga High School in Berwyn PA. Ceramic classes are taught 8 periods a day, 5 days a week with about 22 students each with two other teachers. They fire all of this work in an L&L Jupiter JD230 and an L&L DaVinci X3227. Conestoga has always used L&L kilns – going back over 30 years. Why? They hold up to the heavy use of this ambitious program.