The Center for Gifted Education at The College of William and Mary, a research and development center, was established in 1988 under the direction of Dr. Joyce VanTassel-Baska. The center provides services to educators, policy makers, graduate students, researchers, parents, and students in support of the needs of gifted and talented individuals. Located in Williamsburg, VA, the center has established a national reputation for excellence in research, curriculum development, and service. Several major grants, including funding from the Jacob K. Javits Gifted and Talented Students Education Act, have provided significant support for the work of the Center.Margaret Jess McKowen Patti is a third- and fourth-grade teacher of gifted students at Zachary Elementary School in Louisiana, where she recently received the Zachary Community School District Teacher of the Year.

• Section I: Operations and Algebraic Thinking Lesson 1.1: Writing and Interpreting Numerical Expressions Lesson 1.1: Activity Lesson 1.1: Practice Lesson 1.1: Assessment Practice Lesson 1.2: Analyzing Patterns and Relationships Lesson 1.2: Activity Lesson 1.2: Practice Lesson 1.2: Assessment Practice Section II: Number and Operations in Base Ten Lesson 2.1: Placing Value Lesson 2.1: Activity Lesson 2.1: Practice Lesson 2.1: Assessment Practice Lesson 2.2: Patterns in Number of Zeros and Whole-Number Exponents Lesson 2.2: Activity Lesson 2.2: Practice Lesson 2.2: Assessment Practice Lesson 2.3: Read, Write, and Compare Decimals Lesson 2.3: Activity Lesson 2.3: Practice Lesson 2.3: Assessment Practice Lesson 2.4: Modeling Whole-Number Multiplication and Division Lesson 2.4: Activity Lesson 2.4: Practice Lesson 2.4: Assessment Practice Lesson 2.5: Modeling Decimals Through Operations Lesson 2.5: Activity Lesson 2.5: Practice Lesson 2.5: Assessment Practice