Dr. Sarah Armstrong is president of Leading and Learning Solutions, LLC, an educational consulting company. A consultant on instructional improvement, including the application of brain research and effective differentiation in the classroom, Dr. Armstrong conducts workshops at national and state conferences and works regularly with administrators and teachers in school districts throughout the country. Her book, Teaching Smarter with the Brain in Focus, published by Scholastic is being used in many schools as a faculty book study. A second book entitled, A Practical Guide to Tiering Instruction in the Differentiated Classroom became available October, 2010. Dr. Armstrong also works with educational leaders using the Myers-Briggs and StrengthsFinders assessment tools.