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Here are some articles by Professor Tobbs—some old and some new. More articles will be listed here in future days.
Parrot Math
What's Basic in Mathematics? (with Ann Moss)
Real Math (with Ann Moss)
What's Basic? A Constructivist View
Hold on to Your Hat (with Judy Barnett)
Fasten Your Seat Belts (with Judy Barnett)
Teachers as Researchers: The Bear Problem (with Susie Bargiel, Kathy Feely, Linda Gwyn, David Hoffman, Carol Kaplan, Carolyn Myers, Lee Scissors, Sharon Steinberg, Davi Turman, Jan Wilson and Susan Wise)
The Old and the New
The Goals of Mathematical Education (by George Polya)
Children's Construction of Necessary Inference (with Chris Wallach)
Children’s Complex Thinking (with Chris Wallach)
Children Learning Multiplication, Part 1 (with Shirley Casey)
Children Learning Multiplication, Part 2 (with Shirley Casey)
Interviews to Assess Number Knowledge (with June Richard)
Memories of George Polya (Marion Walter and Tom O’Brien)
More on Basics
New Goals for Mathematics Education
On the Keeping of Several Things in Mind
Some Notes on Multiplication
Three Strikes (with Marianne Smith)
A Look At Triangle Congruence
Why Teach Mathematics?
Credits:
 O'Brien, Thomas C., "PARROT MATH," © Phi Delta Kappan, February 1999.
 O'Brien, Thomas C. and Ann Moss, “What’s Basic in Mathematics?,” ©The Principal, November 2004
 O'Brien, Thomas C., and Ann Moss, “Real Math,” © Phi Delta Kappan, December 2004.
 O'Brien, Thomas C. "What's Basic? A Constructivist View," in Handbook of Basic Issues and Choices, © USOE, National Institute of Education, March 1982.
 O'Brien, Thomas C. and Judy Barnett, "Hold on to your hat," Mathematics Teaching, the journal of the Association of Teachers of Mathematics (UK), June 2004.
 O'Brien, Thomas C. and Judy Barnett, "Fasten Your Seat Belts," © Phi Delta Kappan, November 2003. (Reprinted in Mathematics Teaching, the journal of the Association of Teachers of Mathematics (UK), December 2003, and in Mathematics and Informatics, the journal of the Bulgarian Academy of Science (in press).
 O'Brien, Thomas C., et al., "Teachers as Researchers: The Bear
Problem," Philosophy of Mathematics Education 12, University of Exeter,
November 1999, (c) T.C. O'Brien
 O’Brien, Thomas C., “The Old and the New,” © Phi Delta Kappan, May 2007
 O'Brien, Thomas C. and Chris Wallach, "Children's Construction of Necessary Inference," Primary Mathematics, the Journal of the Mathematics Association (UK), Autumn 2007
 O'Brien, Thomas C. and Chris Wallach, "Children's Complex Thinking,” Alvaro Fernandez’s SharpBrains, http://www.sharpbrains.com/blog/2008/02/10/areschoolscognitivelynutritiveforchildrenscomplexthinking/, February 10, 2008.
 O'Brien, Thomas C. and Shirley A. Casey, “Children Learning Multiplication, Part 1,” School Science and Mathematics, Volume 83 (3) March 1983.
 O'Brien, Thomas C. and Shirley A. Casey, “Children Learning Multiplication, Part 2,” School Science and Mathematics,Volume 83 (5) MayJune 1983.
 O'Brien, Thomas C. and June V. Richard, “Interviews to Assess Number Knowledge,” The Arithmetic Teacher, June 1971.
 Marion I. Walter and Thomas C. O'Brien,”Mathematics Teaching 116", September 1986.
 Thomas C. O’Brien, “More on Basics,” The Genetic Epistemologist, October 1977.
 Thomas C. O’Brien, “New Goals for Mathematics Education,” Childhood Education, February 1974.
 Thomas C. O’Brien, On the Keeping of Several Things in Mind, Childhood Education, October 1999.
 Thomas C. O’Brien, “Some Notes on Multiplication,” Educational Studies in Mathematics, September 1970.
 Thomas C. O’Brien and Marianne Smith, “Three Strikes,” The Montana Mathematics Enthusiast, Vol 5, Nos 2 and 3. [See also Thomas C. O’Brien, “Mathematics and the Pure in Heart,” Education Week, February 28, 2007.]
 Thomas C. O’Brien, “A Look At Triangle Congruence,” The Arithmetic Teacher, February 1967.
 Thomas C. O’Brien, “Why Teach Mathematics?”, The Elementary School Journal, February 1973.
 Photo credit: Dawn Haley (www.dawnly.com)
