AnalĂșcia D. Schliemann worked for 20 years at the Federal University of Pernambuco, in Recife, Brazil and was a Fulbright Scholar at LRDC-University of Pittsburgh (1986). Her work on everyday mathematics has been published in English, Portuguese, Spanish, and Japanese. Some of her studies appear in Street Mathematics and School Mathematics (with T. Nunes and D. Carraher, New York: Cambridge University Press, 1993). At Tufts since 1994, her research focus has been children's early algebraic reasoning and on classroom activities designed to explore the algebraic character of arithmetic in elementary school. She is equally at home in Mathematics Education, Developmental Psychology, and Cross-Cultural Psychology.