Mathematics Teacher (1922) Vol. 15, No. 6
THE MATHEMATICS TEACHER OCTOBER, 1922 N l , ~lBETt (j THE STRE~GTH OF THE l\1E~TAL CONNECTIO>JS FORMED IN ALGEBRA1 13y EDW.\RD L. TROR:!'DIKl~ Tn!ttltute of E:ducr.Uonal Resea1ch, T eachers College, Columbia l'niverslty As things are now, pupils lack mastery of the elements of algebra. '!'he extent to which this is the
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