How sperm swim near surfaces
Using high-speed microscopic imaging, Professor Raymond Goldstein's group in the Department of Applied Mathematics and Theoretical Physics has demonstrated how the interactions of microbes such as sperm cells and algae with solid surfaces are considerably more complex than previously thought. Interactions between swimming cells and surfaces feature prominently in a wide range of microbiological processes, most importantly in the formation of bacterial films and during the fertilisation of the h
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Met deze app kunnen peuters en kleuters puzzels maken op een smartphone of tablet. De puzzels richten zich meer naar jongens. Eerst krijgen kinderen de volledige puzzel te zien en daarna verspreiden de stukjes zich over het scherm. De tekening …

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First briefing of the 'crisis compendium' - Part three, Professor Lucrezia Reichlin
Lucrezia Reichlin, Professor of Economics interprets the latest economic statistics in relation to other recent recessions and suggests a second dip in 2009 is possible

Introduction to Minitab
This laboratory introduces students to the basics of the Minitab software. Students make use of a basic example (water consumption and temperature) to introduce students to manipulation of data, calculation of descriptive statistics, and creation of histograms.
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Star Library: Rectangularity
This article describes an interactive activity illustrating sampling distributions for means, properties of confidence intervals, properties of hypothesis testing, confidence intervals for means, and hypothesis tests for means. Students generate and analyze data and through simulation explore these concepts. The activity is completed in three parts. The three parts of the activity can be used in sequence or they can be used individually as “stand alone” activities. This allows the educator f
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Star Library: Which Paper Towel is More Absorbent?
This group activity focuses on conducting an experiment to determine which of two brands of paper towels are more absorbent by measuring the amount of water absorbed. A two-sample t-test can be used to analyze the data, or simple graphics and descriptive statistics can be used as an exploratory analysis. Students are asked to think about design issues, and to write a short report stating their results and conclusions, along with an evaluation of the experimental design.
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Star Library: Random Rendezvous
This activity leads students to appreciate the usefulness of simulations for approximating probabilities. It also provides them with experience calculating probabilities based on geometric arguments and using the bivariate normal distribution. We have used it in courses in probability and mathematical statistics, as well as in an introductory statistics course at the post-calculus level.
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Statistical Java
This is a collection of applets regarding various topics in statistics. Topics include Central Limit Theorem, Probability Distributions, Hypothesis Testing, Power, Confidence Intervals, Correlation, Control Charts, Experimental Design, and Data Analysis.
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Evaluate the interactive and reusable service in adaptive on demand applications
In this paper, the researcher based on the open platforms and tools for personalized learning idea, with the  Interactive & reusable function in UI design model, directly dealing with Knowledge on demand (KOD) service from the aspect-oriented and object-oriented issue. Moreover, to propose the KOD combine with VOD (Video on Demand); AOD (Audio on Demand); COD (Course on Demand) and IOD (Information on Demand in Global index searching) in diversity of hypermedia metadata.
Author(s): Hwang Chyi-Wen

Adaptive and context-aware scenarios for technology-enhanced learning system based on a didactical t
Among the main issues of future technology-enhanced learning systems, we can mention the following ones: the ability to reuse learning resources (learning objects, tools and services) from large repositories, to take into account the context and to allow dynamic adaptation to different learners based on substantial advances in pedagogical theories and knowledge models. In our framework, the goal of scenarios is to describe the learning and tutoring activities to acquire some knowledge domain (fo
Author(s): Tetchueng Jean Louis,Garlatti Serge,LaubÃ© Sylvain

Enabling Students to Construct Theories of Collaborative Inquiry and Reflective Learning: Computer S
To develop lifelong learning skills, we argue that students need to learn how to learn via inquiry and understand the sociocognitive and metacognitive processes that are involved. We illustrate how software could play a central role in enabling students to develop such expertise. Our hypothesis is that sociocognitive systems, such as those needed for collaborative inquiry and reflective learning, can best be understood as a community of interacting agents, who each have expertise in accomplishin
Author(s): White Barbara Y.,Shimoda Todd A.,Frederiksen John

Discovering Important Statistical Concepts Using Spreadsheets
The Discovering Important Statistical Concepts Using Spread Sheets (DISCUSS) project is a modified and supplemented web-based implementation of the initial DISCUS materials for teaching elementary statistics at the introductory level. The site aims to integrate the powerful interactive capabilities of Microsoft Excel with the convenience of web-based resource materials using Microsoft Internet Explorer. There are several modules within the project. Modules include, [no comma] charts and graphs,
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Star Library: What Makes the Standard Deviation Larger or Smaller?
The activity is designed to help students develop a better intuitive understanding of what is meant by variability in statistics. Emphasis is placed on the standard deviation as a measure of variability. As they learn about the standard deviation, many students focus on the variability of bar heights in a histogram when asked to compare the variability of two distributions. For these students, variability refers to the “variation” in bar heights. Other students may focus only on the range of
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Measuring Health Disparities
Measuring Health Disparities is designed to be accessible to a broad audience of practitioners across all sectors of the public health workforce. In contains audio and interactive elements and focuses on some basic issues for public health practice - how to understand, define, and measure health disparity. The material is divided into four parts. Parts One and Two review what health disparities are, how they are defined, and provide and overview of common issues faced in measuring health dispar
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AlgTop7: The Klein bottle and projective plane
The Klein bottle and the projective plane are the basic non-orientable surfaces. The Klein bottle, obtained by gluing together two Mobius bands, is similar in some ways to the torus, and is something of a curiosity. The projective plane, obtained by gluing a disk to a Mobius band, is one of the most fundamental of all mathematical objects. Of all the surfaces, it most closely resembles the sphere. This is the seventh lecture in this beginner's course on Algebraic Topology, given by Assoc Prof N
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AlgTop3: Two-dimensional surfaces: the sphere
After the plane, the two-dimensional sphere is the most important surface, and in this lecture we give a number of ways in which it appears. As a Euclidean sphere, we relate it to stereographic projection and the inversive plane. This is the third lecture in this beginner's course on Algebraic Topology. The lecturer is Assoc Prof N J Wildberger of the School of Mathematics and Statistics at UNSW.
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Essential Science for Teachers: Physical Science Session 3. Physical Changes and Conservation of Mat
What happens when sugar is dissolved in a glass of water or when a pot of water on the stove boils away? Do things ever really "disappear"? In everyday life, observations that things "disappear" or "appear" seem to contradict one of the fundamental laws of nature: matter can be neither created nor destroyed. In this session, participants learn how the principles of the particle model are consistent with conservation of matter.,The segment shows the interviewer trying to find out the student's id
Author(s): Harvard-Smithsonian Center for Astrophysics

Space Time Travel
Black holes and travel at nearly the speed of light: Visualization of the theory of relativity. This site offers online papers, images, movies and paper models. The website presents computer simulations that provide "virtual experiences."The images and movies are correctly computed within the framework of the theory of relativity. They are carefully explained in an intuitive, non-mathematical way.
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Uncertainty in Engineering Analysis
This course on uncertainty in engineering analysis can also be referred to as probability and statistics for engineers. In particular, we will deal with the applications of probability and statistics to problems related to civil and environmental engineering.
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Helping Your Child Learn Mathematics and Statistics
This site features dozens of fun activities parents can use to help children (K-5th grade) have fun learning geometry, algebra, measurement, statistics, probability and other important mathematical concepts. Activities relate math to everyday life and can be done at home, at the grocery store, or while traveling. It includes sections for parents on what math is like in schools today and a parents' booklist for helping children learn math.
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