I Can’t Take the Pressure!
Students develop an understanding of air pressure by using candy or cookie wafers to model how it changes with altitude, by comparing its magnitude to gravitational force per unit area, and by observing its magnitude with an aluminum can crushing experiment.
What’s Hiding in the Air?
Students develop an understanding of the effects of invisible air pollutants with a rubber band and hanger air test and a bean plant experiment. They also learn about methods of reducing invisible air pollutants.
For Your Eyes Only
Students develop their understanding of visible air pollutants with an incomplete combustion demonstration, a “smog in a jar” demonstration, and by building simple particulate matter collectors.
Air - Is It Really There?
By watching and performing several simple experiments, students develop an understanding of the properties of air: it has mass, it takes up space, it can move, it exerts pressure, it can do work.
A Recipe for Air
Why do we care about air? Breathe in, breathe out, breathe in... most, if not all, humans do this automatically. Do we really know what is in the air we breathe? In this activity, students use M&Ms® to create a pie graph that expresses their understanding of the composition of air. The students discuss why knowing this information is important to engineers and how they use this information to improve technology to improve our planet.
Applying Hooke's Law to Cancer Detection
In this activity, students will explore Hooke’s Law in small groups at their lab bench. They will collect displacement data for a spring with an unknown spring constant, k, by adding various masses of known weight. After exploring Hooke’s law and answering a series of application questions, students are asked to apply their understanding to explore a tissue of known surface area. Students will then use the necessary relationships to depict a cancerous tumor amidst normal tissue by creating a
Detecting Breast Cancer
This lesson introduces students to their task of developing a painless means of identifying cancerous tumors. Solving the challenge will depend on an understanding of the properties of stress and strain. After being introduced to the challenge question, students will generate ideas and consider the knowledge required to solve the challenge question. After which, students will read an expert’s opinion on ultrasound imaging and the potentials for detecting cancerous tumors. This interview will h
Solid State Physics
In the electrical engineering, solid-state materials and the properties play an essential role. A thorough understanding of the physics of metals, insulators and semiconductor materials is essential for designing new electronic devices and circuits. After short introduction of the IC fabrication process, the course starts with the crystallography. This will be followed by the basic principle of the quantum mechanics, the sold-state physics, band-structure and the relation with electrical propert
Superspace: One Thousand and One Lessons in Supersymmetry
We introduce superfields in chapter 2 for the simpler world of three spacetime dimensions, where superfields are very similar to ordinary fields. We skip the discussion of nonsuperspace topics (background fields, gravity, etc.) which are covered in following chapters, and concentrate on a pedagogical treatment of superspace. We return to four dimensions in chapter 3, where we describe how supersymmetry is represented on superfields, and discuss all general properties of free superfields (and the
Reducing Racial/Ethnic Disparities in Female Breast Cancer: Screening Rates and Stage at Diagnosis
Objectives. We assessed whether population rates of mammography screening, and their changes over time, were associated with improvements in breast cancer stage at diagnosis and whether the strength of this association varied by race/ethnicity. Methods. We analyzed state cancer registry data linked to socioeconomic characteristics of patients’ areas of residence for 1990–1998 time trends in the likelihood of early stage diagnosis. We appended each cancer registry record with matching subgro
Fasti Ecclesiae Anglicanae 1066-1300: Volume 6 York
Traces the chronology and careers of the archbishops and the senior clergy of York Minster (deans, precentors, chancellors, treasurers, subdeans, succentors, archdeacons and canons), plus the estates and values of the individual dignities and prebends.
1940s House: Making a Connection between WWII and Rationing
Through viewing and discussion of the video and investigation of the Web resources, students will develop a deeper understanding of rationing and the mathematics needed in a WWII household.
Bulletin of the Institute for Antiquity and Christianity, Volume XVI, Issue 4
CONTENTS: Cover Illustration Description, Calender of Events, Coptic Pope Visits Claremont, Scholar in Residence--Risto Uro, Endowment to Fund New Chair, The Spring Public Lecture Series of the Institute for Antiquity and Christianity: "Images of Egypt: Ancient and Modern," "The Chreia in the Classroom," "Gnosticism as Social Criticism," "Knowledge in Qumran is Da'at but not Gnosis," "From A to Z: The Birth of the Alphabet" and "The Dromedary Revolution", Institute Scholars Active at Convention,
Lecture 23 - 11/15/2010
Mother and Teacher Interaction in Preschools during Parent-Teacher Conferences
The education of children has been a long-standing issue for stakeholders over numerous years. Various literatures recommend that formal learning should begin during the preschool years of a child’s life, and must include home-school partnerships. Empirical data has shown that parents and teachers who work together can positively impact a child’s success in school. This study sought to gain insight into the phenomenon of parent-teacher interactions in preschools, via the lens of symbolic int
The Impact of Retention on Student Educational Outcomes: A Five Year Study of a Group of Retained an
Accountability has become a major focus in educational reform and an increasing number of states and school districts are adopting policies to end social promotion. These policies generally include mandatory retention for students who fail to meet cut-off scores on high-stakes tests. Despite compelling evidence to the contrary, educators believe that underachieving students need, or deserve, to be retained and will benefit from repeating a grade. Using archival data from a large urban school dis
The United States Postal Service: A Case Study of Large Scale Government Transformation
The challenge of replacing the baby-boomer generation of employees is beginning in government agencies as they face a “tsunami” of retirements. This generation forms the core of middle managers or supervisors who are essential to providing the continuity in government organizations that serve the needs of citizens on a daily basis, or most critically in times of crisis. This same generation of government employees worked through decades of change in public administration. The 1980s privat
A Study of a Specific Language Arts and Mathematics Software Program: Is There a Correlation Between
The purpose of this study was to compare usage levels of CompassLearning Odyssey mathematics and language arts software among fifth grade students in order to determine the relationship between usage and achievement. While educational software designed by various companies is a regular part of daily instruction in most public schools across the United States, there remains a need for research-based evidence of the efficacy of specific programs. This study used a quantitative design to compare ac
Combing the Evidence for Support of Lab-based Screening Tests: An Update From the US Preventive Serv
The use of evidence-based guidelines is gaining renewed interest as an approach toward the rational use of health care dollars in Europe and the US. This lecture will focus on how the US Preventive Services Task force, a national independent body of primary experts sponsored by the Agency for Healthcare Quality and Research, uses evidence-based approaches in making its recommendations regarding screening tests for the US population. We will focus on the recent controversies around recommendation
EMBODYING RESEARCH: A STUDY OF STUDENT ENGAGEMENT IN RESEARCH WRITING
College students often perceive the university as alienating; reading and writing impersonal research texts can intensify this sense of disconnect. College professors often feel passion and enthusiasm toward their own research yet find it difficult to create this excitement in their research writing classrooms. This qualitative study explored student and teacher perceptions and instructional approaches in a university research writing course, seeking clues to student engagement. Data collecti