id: 06428422
dt: j
an: 2015c.00938
au: Vui, Tran
ti: Investigating arithmetic mean, harmonic mean, and average speed through
dynamic visual representations.
so: J. Korean Soc. Math. Educ., Ser. D, Res. Math. Educ. 18, No. 1, 31-40
(2014).
py: 2014
pu: Korean Society of Mathematical Education (KSME), Seoul
la: EN
cc: M53 G43 D43 F83
ut: dynamic representations; arithmetic mean; harmonic mean; average speed;
visualization
ci:
li:
ab: Summary: Working with dynamic visual representations can help
students-with-computer discover new mathematical ideas. Students
translate among multiple representations as a strategy to investigate
non-routine problems to explore possible solutions in mathematics
classrooms. In this paper, we use the area models as new
representations for our secondary students to investigate three
problems related to the average speed of a particle. Students show
their ideas in the process of investigating arithmetic mean, harmonic
mean, and average speed through their created dynamic figures. These
figures really utilize dynamic geometry software.
rv: