February 8, 2008
Volume 13 No. 6

In This Issue

NSDL Online Teacher Workshop

Peter J. Lu

ICME 11 Plenary Session 2 Survey


Free Online

For teachers of students in grades 3-5:
Tools for Building Math Concepts

For teachers of students in grades 5-9:
Using Technology and Problem Solving to Build Algebraic Reasoning

For all students:

For students in grades 9-10:
the MathMentor


NSDL Online Teacher Workshop


Applications are open until February 25 for our online workshop "Using Technology and Problem Solving to Build Algebraic Reasoning."


Peter J. Lu


The mathematical and historical research by this PhD student in Harvard University's Department of Physics has revealed new insights in medieval Islamic quasicrystalline tilings and the earliest machines.

Lu claims, for example, that only a precision compound machine could have interconverted the linear and rotational motion responsible for the distinctive spiral grooves carved on ritual jade rings buried in tombs dating from China's Spring and Autumn period (771-475 BC) -- carvings that follow a precise mathematical form described by the spiral of Archimedes, 300 years before he lived.

ICME 11 Plenary Session 2 Survey


Organizers of the 11th International Congress on Mathematical Education (ICME 11) hope that you can make an important contribution by letting them know how research can help you. They hope to have responses from all countries, all school types, and all levels of the school system, including teachers, policy makers, and curriculum developers. The online survey will only remain open until the end of February.


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