Mathematical Lens: The Moving Ladder

2009 ◽  
Vol 102 (7) ◽  
pp. 492-496

For many years, Ron Lancaster's middle school students have interacted with the public art shown in photographs 1 and 2 during a math trail. Selections from the Synopsis of Categories (1992), by Micah Lexier, consists of a large collection of aluminum ladders fixed to the walls of Metro Hall, a building in downtown Toronto. Hundreds of words appear on the rungs of the ladders (see photographs 3 and 4). While standing in front of these ladders, students were asked to think about question 1. After discussing this question, students used metersticks and the Pythagorean theorem to try to resolve it.

2016 ◽  
Vol 26 (5) ◽  
pp. 596-611 ◽  
Author(s):  
Evan Szu ◽  
Jonathan Osborne ◽  
Alexis D. Patterson

Popular media influences ideas about science constructed by the public. To sway media productions, public policy organizations have increasingly promoted use of science consultants. This study contributes to understanding the connection from science consultants to popular media to public outcomes. A science-based television series was examined for intended messages of the creator and consulting scientist, and received messages among middle school and non-science university students. The results suggest the consulting scientist missed an opportunity to influence the portrayal of the cultural contexts of science and that middle school students may be reading these aspects uncritically—a deficiency educators could potentially address. In contrast, all groups discussed the science content and practices of the show, indicating that scientific facts were salient to both media makers and audiences. This suggests popular media may influence the public knowledge of science, supporting concerns of scientists about the accuracy of fictional television and film.


1994 ◽  
Vol 13 (4) ◽  
pp. 314-320
Author(s):  
Michael J. Derelanko

Toxicologists are being called upon to educate the public about the value of toxicity testing and the important role animals play in this regard. This article discusses the importance of toxicologists educating students in the middle school about the science of toxicology and suggests various ways to convey basic concepts of toxicity, dose response, and animal research to students in these grades. The methods described in this article have been developed and used successfully by the author in making presentations to middle school students.


2012 ◽  
Vol 7 (1) ◽  
pp. 108
Author(s):  
Jason Martin

Abstract Objective – To discover the attitudes of twelve to fifteen year-olds toward the public library. Design – Mixed methodology consisting of a survey and focus groups. Setting – An Eastern Canadian regional municipality. Subjects – Twelve to fifteen year-old middle school students. Methods – Using a disproportionate stratified sample and multistage clustering, the author mailed 900 surveys to middle school students; 249 surveys were completed and usable. Those students who completed the survey and who also indicated they would be willing to participate in a focus group were randomly selected to participate in nine focus groups with between 7 to 12 students in each group. Main Results – Discrepancies exist between the teens’ level of satisfaction with the library indicated on the survey (high) and expressed in the focus groups (low). Teens seldom use the public library due to: their non-existent relationship with library staff, although teens who were “active readers” used the library more; lack of appealing programs and program promotion; no teen-focused website; poor teen facilities within the library; and an overall failure of the public libraries to include teenagers. Conclusion – Public libraries need to be more responsive to teen needs to attract teens to use the library. To uncover these needs, libraries should use mixed methods of discovery.


1996 ◽  
Vol 2 (2) ◽  
pp. 112-115
Author(s):  
John C. Uccellini

Ask a group of middle school students what the average (mean) of 2, 8, 4, 6, 3, and 7 is; they will probably give the answer 5. Ask these same students what the number 5 represents in relationship to the six numbers given and the response usually heard is an explanation of the algorithm, “Add them up and divide by the number of them that you have.” The response is no different if the problem is given in a real-life context. For example, the foregoing six numbers could represent the number of pencils that six students have in their desks. In either situation, the almost universal response of students when questioned about the meaning of 5 from the “add and divide” algorithm demonstrates that students have not gained a conceptual understanding of this basic statistic. This same phenomenon exists throughout mathematics and is demonstrated whenever students try to explain subtraction by describing the vertical algorithm or the Pythagorean theorem by stating that c2 = a2 + b2. Through the use of simple manipulative activities and graphing, however, middle school students can be taught the mean meaningfully.


2017 ◽  
Vol 8 (3) ◽  
pp. 209-223
Author(s):  
Elizabeth Davies-Mercier ◽  
Michelle W. Woodbridge ◽  
W. Carl Sumi ◽  
S. Patrick Thornton ◽  
Katrina D. Roundfield ◽  
...  

2014 ◽  
Author(s):  
Jennifer L. Engelland ◽  
Renee M. Tobin ◽  
Adena B. Meyers ◽  
Brenda J. Huber ◽  
W. Joel Schneider ◽  
...  

2009 ◽  
Author(s):  
Ji-Geun Kim ◽  
Yejin Lee ◽  
Bo-Ra Song ◽  
Hyunah Lee ◽  
Jung Eun Hwang

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