Olson, A. T.
Mathematics through paper folding / Alton T. Olson. - Reston, Va. : National Council of Teachers of Mathematics, 1975. - iv, 60 p. : ill.
0873530764
Mathematics--Study and teaching--Audio-visual aids.
Paper work.
Mathematics through paper folding / Alton T. Olson. - Reston, Va. : National Council of Teachers of Mathematics, 1975. - iv, 60 p. : ill.
0873530764
Mathematics--Study and teaching--Audio-visual aids.
Paper work.