id: 06560934
dt: j
an: 2016c.00736
au: Mejía Colindres, Carlos A.
ti: Thunder and lightning: understanding equidistance.
so: Math. Teach. (Reston) 108, No. 6, 454-460 (2015).
py: 2015
pu: National Council of Teachers of Mathematics (NCTM), Reston, VA
la: EN
cc: G43 U73 M93
ut: elementary geometry; plane geometry; geometric constructions; equidistance
from points; student activities; mathematical applications; circles;
perpendicular bisectors; triangles; circumcenters; congruent figures;
geometry software; computer as educational medium; group work;
worksheets
ci:
li: http://www.nctm.org/Publications/mathematics-teacher/2015/Vol108/Issue6/Thunder-and-Lightning_-Understanding-Equidistance/
ab: From the text: Lightning strikes, and two people hear thunder
simultaneously. Where might the lightning have struck? Now consider a
slightly different scenario: Lightning strikes, and three people hear
thunder simultaneously. Where might the lightning have struck? These
scenarios set the stage for an exploration of equidistance and lead
students to develop properties of the perpendicular bisector.
rv: