The concept of “seeing by feeling” as a way to circumvent limitations on sight is universal on the macroscopic scale—reading Braille, feeling one's way around a dark room, etc. The development of the atomic force microscope (AFM) in 1986 extended this concept to imaging in the nanoscale. While there are classroom demonstrations that use a tactile probe to map the topography or some other property of a sample, the rastering of the probe over the sample is manually controlled, which is both tedious and potentially inaccurate. Other groups have used simulation or tele-operation of an AFM probe. In this paper we describe a teaching AFM with complete computer control to map out topographic and magnetic properties of a “crystal” consisting of two-dimensional arrays of spherical marble “atoms.” Our AFM is well suited for lessons on the “Big Ideas of Nanoscale” such as tools and instrumentation, as well as a pre-teaching activity for groups with remote access AFM or mobile AFM. The principle of operation of our classroom AFM is the same as that of a real AFM, excepting the nature of the force between sample and probe.

1.
Gorazd
Planinšič
and
Janez
Kovač
, “
Nano goes to school: A teaching model of the atomic force microscope
,”
Phys. Educ.
43
(
1
),
37
45
(
2008
).
2.
Valerie
Goss
,
Sharon
Brandt
, and
Marya
Lieberman
, “
The analog atomic force microscope: Measuring, modeling, and graphing for middle school
,”
J. Chem. Educ.
90
(
3
),
358
360
(
2013
).
3.
Zdenka
Hajkova
,
Antonin
Fejfar
, and
Petr
Smejkal
, “
Two simple classroom demonstrations for scanning probe microscopy based on a macroscopic analogy
,”
J. Chem. Educ.
90
(
3
),
361
363
(
2013
).
4.
M. Gail
Jones
,
Thomas
Andre
,
Richard
Superfine
, and
Russell
Taylor
, “
Learning at the nanoscale: The impact of students' use of remote microscopy on concepts of viruses, scale, and microscopy
,”
J. Res. Sci. Teach.
40
(
3
),
303
322
(
2003
).
5.
M. Gail
Jones
,
James
Minogue
,
Tom
Oppewal
,
Michelle P.
Cook
, and
Bethany
Broadwell
, “
Visualizing without vision at the microscale: Students with visual impairments explore cells with touch
,”
J. Sci. Educ. Technol.
15
(
5–6
),
345
351
(
2006
).
6.
Shawn Y.
Stevens
,
LeeAnn M.
Sutherland
, and
Joseph S.
Krajcik
,
The Big Ideas of Nanoscale Science and Engineering: A Guidebook for Secondary Teachers
(
NSTA Press
,
2009
).
8.
John D.
Ristvey
, Jr.
and
Kimberly A. O.
Pacheco
, “
Atomic force microscope mobile lab inspires high school teachers participating in NanoTeach workshops
,”
J. Nano Educ.
5
,
148
153
(
2013
).
9.
Bharat
Bhushan
and
Othmar
Marti
, in
Nanotribology and Nanomechanics I
, 3rd ed. (
Springer-Verlag
,
Berlin, Heidelberg
,
2011
), p.
37
.
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