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April 23, 2010 Zooming in on number lines: connecting whole numbers, decimals, and fractions
NCTM Annual Conference


January 16, 2014 "Puzzling through problems” as a habit of mind
32nd Panama conference

We often think of puzzles as special-purpose artifacts crafted solely for the purpose of entertainment.

April 14, 2011 Algebra: Grades K-12: a perspective from three programs
NCTM Annual Meeting
April 14, 2011 Algebra: Grades K-12: a perspective from three programs
NCTM annual national conference
January 3, 2005 Alphabet Number Soup: Mmmm, Mmmm, Good: Integrating Math and Language Arts Using Headline Stories
Annual Hawaii International Conference on Education

"Tell a story with number 4 in it."” In responding, a child develops number sense and language skills. This session offers ideas for infusing language into...

April, 2006 Building Standard Algorithms: From Buttons to Algebra

An excerpt from the teacher's materials that describes how Think Math! uses children's own natural ideas about sorting objects as a foundation for...

April 19, 2002 Classical Mathematics for the Modern Classroom: A Comprehensive K-5 Elementary Curriculum
NCSM Annual Meeting
March 23, 2007 Counting on Curiosity
NCTM Annual Meeting

What makes students curious? How does their curiosity drive learning and understanding?

March 23, 2011 Cross Number Puzzles
ATMIM/ATMNYS 2011 Conference

Sorting to Algebra

April 15, 2011 Deep thinking and real fun with vertices, edges, and faces
NCTM Annual Meeting

Ever wonder what there is to do with this vocabulary other than know it?

April 23, 2010 Drill and thrill: mindful practice that connects skill with understanding
NCTM Annual Conference



One of the reasons why fractions are often considered difficult to teach and learn is that they are often introduced with more complexity than makes sense...

October 1, 2007 From Buttons to Algebra: Learning the ideas and language of algebra, K-12

What could mathematics be like? It could spark curiosity! (How can addition and subtraction sentences ever do that?!) And it could be fascinating!

April 14, 2011 Geometry and early algebra: attributes, function machines, and sorting
NCTM Annual Meeting

By sorting non-standard as well as garden-variety geometric shapes, children see enough contrast to recognize what features make particular shapes special...

January 12, 2006 Geometry Field Trip: From 2D to 3D
ATMIM Winter Conference

Come along on a journey of transformation from 2D nets to 3D shapes. Uncover surprises about the relationships between vertices and faces in different...

April, 2006 Headline Stories: A Developmental Approach to Word Problems

An excerpt from the teacher's materials that describes a unique feature of Think Math! that prepares children to be creative problem solvers and...

April 4, 2005 Helping Teachers See an Algebraic Story Line in Elementary School Math, and Learn the Algebraic Ideas as They Teach Them to their Children
NCSM Annual Meeting

Number "tricks" that make children feel brilliant can teach them their facts and the basic patterns they'll relearn in algebra.

January 10, 2008 How the ideas and language of algebra K-5 set the stage for algebra 6–12
April 23, 2010 Keeping up, not catching up: differentiating instruction without differentiating children
NCTM Annual Conference

Abstract: For strugglers, timing matters. A little help before a lesson gives a child two chances to learn: the help session, and the lesson for which the...

April, 2011 Mathematical Habits of Mind for Young Children

Elementary school teachers are in the unique and difficult position of managing just about everything, and often try to integrate their activities, finding...