
06571526
j
2016c.00827
Ca\~nadas, Mar\'{\i}a C.
Brizuela, B\'arbara M.
Blanton, Maria
Second graders articulating ideas about linear functional relationships.
J. Math. Behav. 41, 87103 (2016).
2016
Elsevier, New York, NY
EN
I22
C52
quantities
functional thinking
early algebra
elementary students
doi:10.1016/j.jmathb.2015.10.004
Summary: In this paper, we explore the ideas that second grade students articulate about functional relationships. We adopt a functionbased approach to introduce elementary school children to algebraic content. We present results from a designbased research study carried out with 21 secondgrade students (approximately 7 years of age). We focus on a lesson from our classroom teaching experiment in which the students were working on a problem that involved a linear functional relationship ($y=2x$). From the analysis of students' written work and classroom video, we illustrate two different approaches that students adopt to express the relationship between two quantities. Students show fluency recontextualizing the problem posed, moving between extramathematical and intramathematical contexts.