Temple Sinai - With nearly 1000 member families, Temple Sinai has a vibrant program of religious, spiritual, educational, social and social action initiatives. Temple Sinai is affiliated with the Union for Reform Judaism, which represents the liberal tradition of Judaism. Our vision is to create and sustain an engaged community that welcomes and connects people from all walks of Reform Jewish life. We strive to nurture the spiritual, educational, and emotional lives of the families and children in our community. Temple Sinai Preschool is a play-based, Jewish preschool in Oakland.