This teacher's guide is intended to inform the education community of the design of the Louisiana Educational Assessment Program for the 21st Century (LEAP 21) criterion-referenced tests (CRTs). The guide includes the following: an overview of the design of the state tests in English Language Arts (ELA) for grades 4, 8, and 10; sample test items; scoring rubrics; and ELA standards and benchmarks. Teachers may use the guide to familiarize their students with the test format; to ensure that their instruction and classroom assessments also include these types of formats; to serve as a source for rubrics models for classroom assessment; and to ensure that their instruction and assessment are aligned with the state content standards. The teacher's guide is divided into these parts: Summary; Preface; Test Design; LEAP 21 Scoring Information; Assessment Framework: Grade 4; Assessment Framework: Grade 8; and Assessment Framework: Grade 10. Appendix A contains test administration schedule; Appendix B contains standards and benchmark statements, across grades. (NKA)