This paper is from Session 2F: Making connections between educational research and teaching statistics at the school level

which comes under Topic 2: Statistics education at the school level

Other papers under session 2F ... 2F1: Teacher knowledge and confidence in grade 8 and 9 data handling and... 2F2: Helping teachers to make effective use of real-world examples in... 2F4: Researchers cultivating a long-term relationship with schools

(Tuesday 13th, 14:00-16:00)

Exploring relations of Vitruvian Man to develop students’ reasoning about variation

Presenter

• Cláudia Borim da Silva (University of São Judas Tadeu, Brazil)

Co-authors

• Irene Cazorla (State University of Santa Cruz, Brazil)
• Verônica Yumi Kataoka (University of Bandeirante São Paulo, Brazil)
• Sandra Magina (Catholic University of São Paulo, Brazil)

Abstract

This paper aims to explore reasoning about variation with twenty-five seventh and eighth graders. Anthropometric measures were collected and tasks developed, supported by dotplots. Coding schemes were used to classify students’ answers. Higher reasoning about variation levels in the posttest were observed in questions that asked for analyzing a situation by dotplot and by interpretation of mean, both concepts discussed during activities. Before the teaching session, students were asked to describe the size of shoes and the height of the person. We observed that they realized variation before expectation. Some students said that distributions were spread or grouped, used minimum and maximum values and chose to compare groups of male and female in an intuitive way. After the teaching session, students were more engaged in statistics tasks to analyze other variables, showing the importance of teaching statistics in school

Other papers under session 2F ... 2F1: Teacher knowledge and confidence in grade 8 and 9 data handling and... 2F2: Helping teachers to make effective use of real-world examples in... 2F4: Researchers cultivating a long-term relationship with schools