“strand: A group of related themes or concepts within an overall curricular area. For example, a social studies curriculum might be divided into such strands as citizenship, history, economics, geography, legal systems, political systems, and so on.”
Excerpted from: Ravitch, Diane. EdSpeak: A Glossary of Education Terms, Phrases, Buzzwords, and Jargon. Alexandria, VA: ASCD, 2007.