"Harvard Education Letter" is published bimonthly at the Harvard Graduate School of Education. This issue of "Harvard Education Letter" contains the following articles: (1) Taking Care of Novice Teachers: Researchers Suggest How Administrators Can Keep Their Newer Teachers Teaching and Maintain a First-Rate Faculty (Reino Makkonen); (2) Assessing Young Immigrant Students: Are We Finding Their Strengths? How All Kindergarten Students Are Assessed--and Why We Should Be Concerned about It (Evangeline Harris Stefanakis); and (3) A Core Curriculum for All Students (Patte Barth and Kati Haycock). (Contains 1 figure.)