Technology Tips: October 2003

2003 ◽  
Vol 96 (7) ◽  
pp. 516-519
Keyword(s):  
Linear Function ◽  
Mathematics Teacher ◽  
Web Site ◽  
Lesson Plans ◽  
Linear Functions ◽  
Web Pages ◽  
Geometer's Sketchpad ◽  
Similar Investigation ◽  
Link Type

“TECHNOLOGY TIPS” in the September 2003 issue of the Mathematics Teacher demonstrated how to create a table of values and graph of a function in Excel where the function rule is based on parameters that can be changed. It showed how to use Excel to create an exploration of the parameters of a linear function with rule f (x) = ax + b. This month, we demonstrate how to add interactivity to parameter explorations of linear functions with Excel and The Geometer's Sketchpad (Jackiw 2001). We show how to insert sliders in Excel to control the values of the parameters and show how to create a similar investigation using Version 4 of The Geometer's Sketchpad. The “Surfing Note” this month is www.ExploreMath.com. This Web site includes a variety of interactive activities, lesson plans, and free course Web pages for teachers.

Technology Tips: May 2003

2003 ◽  
Vol 96 (5) ◽  
pp. 372-376
Keyword(s):  
Web Site ◽  
Web Pages ◽  
Link Type ◽  
School Year ◽  
The Web

This final column for the 2002–2003 SCHOOL year completes the “Mapping Diagrams” tip from April 2003. I hope that this treatment, as well as the Web pages mentioned, spurs some fresh interest in this fascinating parallel-axes alternative for graphing functions. Readers should note that the programs Maplite and Mapper are available from Henri Picciotto's Web site at http//:www.picciotto.org/math-ed/func-diag/software. Picciotto's site was highlighted in last month's “Surfing Note.”

Technology Tips: October 2004

2004 ◽  
Vol 98 (3) ◽  
pp. 200-204
Keyword(s):  
Mathematics Teachers ◽  
Web Site ◽  
Web Pages ◽  
Software Application ◽  
Course Materials ◽  
Link Type ◽  
Work Done

Have you ever been working on your computer and wanted to capture an image of the screen so that you could show your work to someone else, perhaps your students? When mathematics teachers create technologybased lessons, they often need to create professional-looking documents—such as handouts, tests, Web pages, distanceeducation course materials, and “Technology Tips” manuscripts—that include images from work done on a computer. In this month's “Technology Tips,” we share some inexpensive or free ways that enable you to capture and use images in your work. The techniques that we describe can capture images of anything that is displayed on your computer monitor. In this example, the screen captures that we demonstrate are of a statistical exploration of SAT data in the software application Fathom (available from Key Curriculum Press at www.keypress.com/ fathom). The SAT data used can be found at the College Board's Web site (www.collegeboard.com/about/news_ info/cbsenior/yr2003/html/links.html).

scholarly journals Cache-Aided General Linear Function Retrieval

Entropy ◽  
2020 ◽  
Vol 23 (1) ◽  
pp. 25
Author(s):  
Kai Wan ◽  
Hua Sun ◽  
Mingyue Ji ◽  
Daniela Tuninetti ◽  
Giuseppe Caire
Keyword(s):  
Linear Function ◽  
Linear Functions ◽  
General Linear ◽  
Linear Combinations ◽  
Past Work ◽  
Single File ◽  
Caching Scheme ◽  
Retrieval Scheme ◽  
Data Points ◽  
Coded Caching

Coded Caching, proposed by Maddah-Ali and Niesen (MAN), has the potential to reduce network traffic by pre-storing content in the users’ local memories when the network is underutilized and transmitting coded multicast messages that simultaneously benefit many users at once during peak-hour times. This paper considers the linear function retrieval version of the original coded caching setting, where users are interested in retrieving a number of linear combinations of the data points stored at the server, as opposed to a single file. This extends the scope of the authors’ past work that only considered the class of linear functions that operate element-wise over the files. On observing that the existing cache-aided scalar linear function retrieval scheme does not work in the proposed setting, this paper designs a novel coded caching scheme that outperforms uncoded caching schemes that either use unicast transmissions or let each user recover all files in the library.

scholarly journals Investigation of eighth-grade students' understanding of the slope of the linear function

2012 ◽  
Vol 26 (42a) ◽  
pp. 139-162 ◽  
Author(s):  
Osman Birgin
Keyword(s):  
Linear Function ◽  
Analytical Techniques ◽  
Structured Interview ◽  
Linear Functions ◽  
Eighth Grade ◽  
The Black Sea ◽  
Algebraic Representation ◽  
Black Sea Region ◽  
Eighth Grade Students ◽  
Written Questions

This study aimed to investigate eighth-grade students' difficulties and misconceptions and their performance of translation between the different representation modes related to the slope of linear functions. The participants were 115 Turkish eighth-grade students in a city in the eastern part of the Black Sea region of Turkey. Data was collected with an instrument consisting of seven written questions and a semi-structured interview protocol conducted with six students. Students' responses to questions were categorized and scored. Quantitative data was analyzed using the SPSS 17.0 statistical packet program with cross tables and one-way ANOVA. Qualitative data obtained from interviews was analyzed using descriptive analytical techniques. It was found that students' performance in articulating the slope of the linear function using its algebraic representation form was higher than their performance in using transformation between graphical and algebraic representation forms. It was also determined that some of them had difficulties and misunderstood linear function equations, graphs, and slopes and could not comprehend the connection between slope and the x- and y-intercepts.

Web Usage Mining through Associative Models

2011 ◽  
pp. 1231-1234 ◽  
Author(s):  
Paolo Giudici ◽  
Paola Cerchiello
Keyword(s):  
Web Site ◽  
Web Usage Mining ◽  
Web Pages ◽  
Web Page ◽  
User Session ◽  
Web Usage ◽  
Associative Models ◽  
The Web

The aim of this contribution is to show how the information, concerning the order in which the pages of a Web site are visited, can be profitably used to predict the visit behaviour at the site. Usually every click corresponds to the visualization of a Web page. Thus, a Web clickstream defines the sequence of the Web pages requested by a user. Such a sequence identifies a user session.

scholarly journals Distributed and collaborative Web Change Detection system

2015 ◽  
Vol 12 (1) ◽  
pp. 91-114 ◽  
Author(s):  
Víctor Prieto ◽  
Manuel Álvarez ◽  
Víctor Carneiro ◽  
Fidel Cacheda
Keyword(s):  
Change Detection ◽  
Search Engines ◽  
Web Site ◽  
Detection System ◽  
Computational Cost ◽  
Web Pages ◽  
Web Page ◽  
Case Scenario ◽  
Worst Case ◽  
The Web

Search engines use crawlers to traverse the Web in order to download web pages and build their indexes. Maintaining these indexes up-to-date is an essential task to ensure the quality of search results. However, changes in web pages are unpredictable. Identifying the moment when a web page changes as soon as possible and with minimal computational cost is a major challenge. In this article we present the Web Change Detection system that, in a best case scenario, is capable to detect, almost in real time, when a web page changes. In a worst case scenario, it will require, on average, 12 minutes to detect a change on a low PageRank web site and about one minute on a web site with high PageRank. Meanwhile, current search engines require more than a day, on average, to detect a modification in a web page (in both cases).

Delving Deeper – Cyclical Products: The Last Shall Be First

2011 ◽  
Vol 104 (8) ◽  
pp. 630-635
Author(s):  
Mark A. Hugen ◽  
Gerald E. Gannon ◽  
Harris S. Shultz
Keyword(s):  
Mathematics Teacher ◽  
Background Information ◽  
Classroom Teachers ◽  
Link Type

“Delving Deeper” offers a forum for classroom teachers to share the mathematics from their own work with the journal's readership; it appears in every issue of Mathematics Teacher. Manuscripts for the department should be submitted via http://mt.msubmit.net. For more background information on the department and guidelines for submitting a manuscript, visit http://www.nctm.org/publications/content.aspx?id=10440#delving.

Media Clips: Health Literacy

2011 ◽  
Vol 104 (8) ◽  
pp. 572-575
Keyword(s):  
Health Literacy ◽  
Mathematics Teacher ◽  
Electronic Media ◽  
Quantitative Reasoning ◽  
Link Type

“Media Clips” appears in every issue of the Mathematics Teacher, offering readers contemporary, authentic applications of quantitative reasoning based on print or electronic media. All submissions should be sent to the editor. For information on the department and guidelines for submitting a clip, visit http://www.nctm.org/publications/content.aspx?id=10440#media.

Media Clips: Fence Percentages; Welcome to the Jungle

2011 ◽  
Vol 104 (6) ◽  
pp. 408-410
Author(s):  
David Ebert ◽  
Jana LePage-Kljajic
Keyword(s):  
Mathematics Teacher ◽  
Electronic Media ◽  
Quantitative Reasoning ◽  
Link Type

“Media Clips” appears in every issue of the Mathematics Teacher, offering readers contemporary, authentic applications of quantitative reasoning based on print or electronic media. All submissions should be sent to the editor. For information on the department and guidelines for submitting a clip, visit http://www.nctm.org/publications/content.aspx?id=10440#media.

Technology Tips: Curve Fit Challenge

2005 ◽  
Vol 99 (4) ◽  
pp. 288-291
Keyword(s):  
Geometer's Sketchpad ◽  
Instructor Evaluation ◽  
Link Type ◽  
Curve Fit ◽  
Software Download

You may recall that the Technology Tip in the September 2004 issue introduced some of the graphing capabilities of The Geometer's Sketchpad (GSP version 4.05, KCP Technologies, 2001). In this month–s tip, Tod Shockey and Charles Pollington share some additional graphing tips using GSP. You can download a free upgrade from v.4.0, an instructor evaluation edition (sixty-day trial), or purchase a licensed copy from www.keypress.com/sketchpad/. If you would like an overview of the software, download the workshop guide from www.keypress.com/sketchpad/workshop_guide.html.

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