Ziele und Wege des Unterrichts in Mathematik und exakten Naturwissenschaften; I. Mathematik; Wissen und Wirken, 35. Band
Karlsruhe: G. Braun, 1926. First printing. Paperback. First edition, 1926. Softcover, 97 pp., Very Good copy, a few erasable pencil-marks to the text, soil/discoloration to the covers, light wear to the covers including creasing and a bit of loss at the spine-ends. Text in German. Uncommon...