Abstract
How does teacher-guided whole-class interaction contribute to expanding students’ potential for making and exchanging mathematical meanings? We address this question through an interpretative analysis of a whole-group conversation in a sixth grade class taught by an experienced teacher in a school in Southern Argentina. The extended interaction (circa 160 speaker turns) concerned a problem involving remainders that calls for building a direct formula and expressing it in symbolic algebraic language. Our functional-grammatical analysis of the selected conversation revealed that, in synch with the deployment and use of the function table, the manner in which the teacher worded her questions was instrumental to the simultaneous accomplishment of three goals. First, her use of the personal pronouns “I” and “we” with generalized referents helped shape a collective zone of proximal development for the class to think aloud together about the algebraizing task at hand. Second, her verb choices supported students in moving among material, mental, operative, and relational processes on the road toward the targeted formula. Finally, by means of repetition, conjunction, demonstrative pronouns, and pointing gestures, the teacher molded the conversation as a coherent and cohesive multi-semiotic text.
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Notes
Examples of texts are everyday conversations, email exchanges, recipes, instructional manuals, geometric proofs, lab reports, novels, poems, political speeches, etc.
“It appears that we can recognize a generalized interpersonal gateway whereby new meanings are first construed in interpersonal contexts and only later transferred to ideational ones, experiential and/or logical” (Halliday 1993, p. 103).
Worth highlighting here is, also, the shift in verb tense from “I” + Past to “You” + Present.
Declaratives are clauses with subject-verb order, imperatives are clauses with no subject, and interrogatives are those in which the auxiliary verb comes before the subject.
Our analysis attended also to Theme (i.e. what the clause is about and what the speaker chooses as the point of departure for the message) and Rheme (the part of the clause which develops the Theme). We do not include that analysis in here given that, in Spanish, Theme marked-ness functions differently than in English (Taboada 2004) thus requiring a lengthy discussion of the translation effect.
Given the non-obligatory status of personal pronouns in Spanish, we identified instances where the teacher did use personal pronouns. We view those instances as further evidence that the teacher’s use of first person singular and plural supported students in appropriating a generalized mathematizing other.
Nominalizing, turning processes and actions (verbs) into objects (nouns), allows mathematical objects to appear as subjects in the clause thereby suggesting they carry causality and agency (cf. Halliday and Martin 1993).
We noted two reference shifts in the teacher person choices: (1) from “you” referring to and addressing either an individual student or a group—Some of you seem to have some trouble with…; Joaquin, how did you understand….—to “we” referring to and addressing the whole class herself included—How can we understand….; (2) from “they” and” them” referring to the ants, to “you” referring to the students: when/if they march, if they go…, if it were you, 25 kids, …., if they go by 2 s, how many rows can I make?, If the 25 ants, I make them march--a personification aimed at helping students place themselves in the situation.
Implicit in Teo's reasoning is that, since the length of the repeating pattern in the last two digits is 5 (25, 85, 45, 05, 65), the 10th term ends in the same two digits as the 5th one. Requesting him to make this reasoning explicit was perhaps a missed ‘teachable moment’.
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Acknowledgments
The authors are grateful to Mary Schleppegrell as well as to the three anonymous reviewers for their comments and suggestions. An earlier version of this paper was presented at the 2014 Annual Meetings of the American Education Research Association (Philadelphia).
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Zolkower, B., Shreyar, S. & Pérez, S. Teacher guidance of algebraic formula building: functional grammatical analysis of a whole-class conversation. ZDM Mathematics Education 47, 1323–1336 (2015). https://doi.org/10.1007/s11858-015-0701-8
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DOI: https://doi.org/10.1007/s11858-015-0701-8