
05157611
j
2007a.00461
Brown, S.L.
Rizzardi, M.A.
Averaging rates: deciding when to use the harmonic or arithmetic mean.
Math. Teach. (Reston) 98, No. 9, 626630 (2005).
2005
National Council of Teachers of Mathematics (NCTM), Reston, VA
EN
K44
K45
means
arithmetic means
harmonic means
Summary: The article describes the harmonic mean and explores situations for using it. Activities that involve handson practice for students are provided. Students learn to recognize which mean, harmonic or arithmetic, is appropriate.