MT: February 2010, Volume 103, Issue 6

	Mathematics Teacher February 2010, Volume 103, Issue 6
	Articles

	Common Errors in Counting Problems Scott A. Annin and Kevin S. Lai
	Proof-Related Reasoning in High School Textbooks Gwendolyn J. Johnson, Denisse R. Thompson and Sharon L. Senk
	What Mathematics Do High School Teachers Need to Know? Michael J. Gilbert and Jacqueline Coomes
	Investigating the Fundamental Theorem of Calculus Heather L. Johnson
	How Technology Can Motivate the Learning of Proof Kimberly O. Muller

	Departments
	Calls for Manuscripts: 2011 Focus Issue: Teaching Geometry
	Reader Reflections
	Sound Off!: Can We Make High School More Relevant? Henry Kranendonk
	Media Clips: Walking the Equator; Leap-Year Births Lucie Paquette Serratore
	Mathematical Lens: Mathematical License
	February 2010 Calendar and Solutions to Calendar
	Calls for Manuscripts: Lesson Study
	Contemporary Curriculum Issues: High School to Postsecondary Education: Challenges of Transition Susan Hudson Hull and Cathy L. Seeley
	Activities for Students: Moving a Wall: Using Geometry to Measure an Imperceptible Distance Adam R. Poetzel, Matthew C. Hopkins and Joseph J. Muskin
	Technology Tips: Scrambling Data with Fathom to Simulate the Null Hypothesis Kathryn Shafer
	Delving Deeper: Growth Rates and the Marvelous Geometric Sequence Maurice J. Burke and Ted R. Hodgson
	For Your Information: Publications
	The Back Page: My Favorite Lesson: Making Connections and Communicating Ideas Rick McNamee