• Arithmetic and Algebra in Early Mathematics Education

    David W. Carraher, Analúcia D. Schliemann, Barbara M. Brizuela, Darrell Earnest
    Arithmetic and Algebra in Early Mathematics Education David W. Carraher TERC Analcia D. Schliemann and Brbara M. Brizuela Tufts University Darrell Earnest TERC Algebra instruction has traditionally been postponed until adolescence because of historical reasons (algebra emerged relatively recently), assumptions about ps