TY
-
GEN
AU
-
Metz, James
TI
-
Seeing slopes of perpendicular lines
PB
-
National Council of Teachers of Mathematics
SN
-
0025-5769
KW
-
Reader Reflections
PY
-
1998
UR
-
http://slubdd.de/katalog?TN_libero_mab2
ER
-
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