
06597693
j
2016d.00558
Pratt, Sarah S.
Lupton, Tina M.
Richardson, Kerri
Division quilts: a measurement model.
Teach. Child. Math. 22, No. 2, 102109 (2015).
2015
National Council of Teachers of Mathematics (NCTM), Reston, VA
EN
F33
division
division quilts
visualization
division algorithm
ME 1985x.00293
http://www.nctm.org/Publications/TeachingChildrenMathematics/2015/Vol22/Issue2/DivisionQuilts_AMeasurementModel/
Summary: As teachers seek activities to assist students in understanding division as more than just the algorithm, they find many examples of division as fair sharing. However, teachers have few activities to engage students in a quotative (measurement) model of division. {\it E. Fischbein} et al. [J. Res. Math. Educ. 16, No. 1, 317 (1985; ME 1985x.00293)] defined two types of wholenumber division: partitive (fair sharing) and quotative (measurement). It is this second type of division that the authors present in ``Division Quilts.'' This activity will allow students to connect to their understandings of quotative division, thereby enhancing their understandings of the operation of division. The authors present a model that teachers can use to assist students in connection with everyday experiences; that demonstrates using manipulatives; and relates to their understanding that each group must receive the same amount. The model also shows division as repeated subtraction, which connects as an inverse operation to multiplication as a recursive process. Engaging in both forms of division models gives students opportunities to connect in rich ways when presented with the division algorithm. (ERIC)