Enrichment Clusters Students learning art techniques from a parent Cluster leader.. The first Randolph Heights Enrichment Cluster classes met on October 29. All Kindergarten through sixth grade students participate in the Enrichment Clusters. These are small classes taught by teachers, parents, and community volunteers. The cluster classes meet for an hour once in October, once in December and again in April on the Students engaged in making their own wooden pinball machine. Early Release days. Most students attend two classes each day while some classes are two hours long. Topics for these classes range from sewing to science to world languages to chess to performing arts, and much more. Students and their families are able to select from a menu of choices the classes they are interested in taking. The Worms - Icky or Essential? These students are finding out which it is! format of small groups of students teamed with a caring adult studying about a mutual interest makes for exciting learning! In the spring, at the Student Showcase, all students will have an opportunity to present what they learned during their cluster classes. There will be displays, performances, and projects to admire.