563Figure 2: Interactive inheritance tree activity contains (a) an inheritance tree, (b) pseudocode that is color-matched to the inheritance tree, and (c) actual code that is textually-matched to the pseudocode and inheritance tree. (a) (b) (c)a polynomial is impacted by constants for a given x value; the user could click on constants, e.g.,y = _x^2 + _x + _, where each _ is a button whose value is selectable. For a given x (which couldbe modified by the user), the user can vary the values and see the difference in output value.Alternatively, buttons could represent the resistance
methods to: (a) leverage the understanding of complex phe- nomena in science and engineering and (b) support scientific inquiry learning and innovation. Specific efforts focus on studying cyberinfrastructure affordances and identifying how to incorporate advances from the learning sciences into authoring curriculum, assessment, and learning materials to appropriately support learning processes.Dr. David Sederberg, Purdue UniversityDr. Grant P Richards, Purdue University, West Lafayette Dr. Grant P. Richards is a Clinical Assistant Professor in Electrical and Computer Engineering Technology at Purdue University. His research focuses on learning styles and visual learning tools.Dr. M. Gail Jones, NC State University Gail
variables on a singlemeasured dependent variable. This dependent variable can be catalyst productivity, income,blood pressure or any similar quantitative property. DOE (also known as experimental design) isa structured approach used to establish and quantify causality relationships between independentvariables (factors), as well as their interaction effects, and the outcome of an experiment. TheDOE approach can be applied broadly to many fields outside of engineering, including finance,health and social sciences9.To illustrate the DOE method, suppose that you are planning a series of experiments thatinvestigate the effect of three independent variables (A, B and C) on a measured response (Y). Afirst impression may be to vary each of A, B and C one
summer sessions, but not all. In the last two years morethan one section of the course has been offered during fall and spring semesters. Figure 1displays the percentage of grades of A+, A, A-, B+, B, B-, C+, C and C- (ABC rate) assigned bythe instructors for each section during this period. It should be noted that until fall 2011, thegrading scales did not include “+” or “-” letter grades. In Fig. 1, the instructors are identified asInst-1 through Inst-9. An examination of grade distributions shows that there are smallvariations in passing rates for a given instructor from semester to semester. A higher passingrate for an instructor for one semester may be due to an uncommonly good pool of students. Thegrade distributions in Fig.1, however
x B 4 2 Figure 1 A fourth degree polynomial: y = x – 2x + .2x +1 Page 23.815.3The graph indicates: (1) The extent of the curve, horizontally and vertically (2) the
considered in vibrations textbook problems.Vibration System (1)In order to help students understand the meaning of beam vibration mode shapes, a simple Page 23.1289.3aluminum cantilevered beam of rectangular cross-section 0.125” x 0.750” and length 50.5” wasused. The beam was clamped in a vise. The clamped length was chosen simply by trial-and-error, witth the goal being b to prod duce a structu ure that is sttiff enough tto behave succh that lineaarsystem ap pproximatioons are reasonable, but fllexible enouggh that the vvibration respponse ampliitudesin the firsst and secon
may be counterintuitive that an online tool would encourage contact between studentsand faculty. (See first row of Table 1). Nevertheless online methods providing a flippedclassroom environment, can improve provide the effectiveness of available face-to-facetime3. Thus contact between students and faculty can improve by employing a hybridtool. Also if the hybrid can help a student formulate questions or bound uncertainties,then it may foster better students / faculty exchanges.A forum type of venue could provide a useful means to engage students with open-endedtypes of questions. For example, students could be asked, “How might you address agiven situation (method A vs B) and why do you prefer this approach?” or asked, “Whatdid you learn of
common polycrystalline system, viaseveral methods and comparing the results.Question 1. In general, the change in crystal orientation across a grain boundary is: a) less than 10 degrees b) more than 15 degrees (42%) c) 45 degrees d) there is no change in orientationQuestion 2. In general, the change in crystal orientation within a grain is: a) less than 10 degrees (41%) b) more than 15 degrees c) 45 degrees d) there is no change in orientationQuestion 3. After cold-working, a metal's microstructure can best be described as having: a) large equiaxed grains b) strain free grains c) deformed grains (64%)Question 4. After cold working and recrystallization, under optical microscopy, a metal's microstructure
A B C CathodeFigure 3. (Left) A Si wafer containing five electrodeposited Ni80-Fe20 test specimens; and (Right) an actual Ni80-Fe20 test specimen (top) with schematic drawing (bottom) of a reference ASTM dog-bone shape Ni80-Fe20 test specimen depicting dimensions (in millimeters).Mechanical Properties and TestingIn this study, electrodeposited Ni80Fe20 test specimens were fabricated for mechanical, magnetic,and composition testing. Sharpe7 states that tensile tests have the advantage of uniform stress andstrain fields, which is why they are used to determine mechanical properties at larger scales.However, they have disadvantages at smaller scales in that larger forces are required
preconception more than students with an alternativepreconception. Meanwhile, students with the alternative preconception are helped more by a secondmode of instruction. Such a situation is illustrated in Figure 1D and will be referred to as a crossover Page 23.1169.2interaction. A. Main Effect of Instruction B. Main Effect of Preconception C. Main Effects of Instruction & D. Crossover Interaction of Preconception Instruction & Preconception Figure 1: Plots showing the possible effects of instruction on differing preconceptions. In
course inventory topics,Figure 7 shows exemplar practical exercises included as part of the pre-reading materials, andFigure 8 shows sample codes as part of the pre-reading materials that express OOP concepts. (b) Summaries of key concepts integrated in the peer-‐to-‐ (a) Underlined important OOP concepts peer pre-‐reading materials (c) Theoretical explanations Figure 6. Exemplar excerpts of pre-reading materials (Sierra, 2005; Weisfeld, 2009
, Page 23.169.6the current study is looking for evidence of standardised representations of the geometricconfigurations, which were originally presented to students in an unconventional format(figure 4).Figures 5 - 8 contain evidence of this issue taken from a sample of student portfolios (n=118)and range from large deviation (figure 5) to a smaller deviation (figure 8) in communicatedorientation. In order to illustrate the degree of variance from the geometric configurationsthat students were asked to visualise and communicate, a superimposed wireframe model ofthe original objects has been placed on top of student solutions in the second part (b) of theimage. The first, second and fifth configurations were chosen to investigate the issue
. Remote ExperimentationThe lead author has been working on remote laboratory development and implementation for Page 23.807.3more than ten years. During this period, he has attracted research and development grants fromthe National Science Foundation and industries. Some of these developments are used to deliverlaboratory courses within an electrical engineering technology program. This section willprovide an outline of those developments.To maximize the benefit of remote laboratories, the facility design philosophy includes a numberof features: a) use of emerging technologies; b) individualized learning; c) knowledge-centeredlearning; d
applying Model Thinking concepts to understand the rise of political factions in PakistanFinancial AidWrong student answersNew Window into Human Learning “These lessons have been muchDan MacFarland harder to focus on (at least for me), because there was no talking face.” Student Group A Student Group B Data: Learn how students learn"The 2 Sigma Problem: The Search for Methods of Group Instruction as Effective asOne-to-One Tutoring." B. Bloom, Educational Researcher (1984). Individual Tutoring Mastery
, andfinally post-processing results. The following laboratory-specific learning objectives weredefined for this lab: “At the end of this lab students should be able to:1. Organize a basic biotransport problem on paper and translate it to be solved in Comsol Multiphysics (CMP) a. Open CMP and select the correct application mode b. Create a geometry and apply boundary conditions and subdomain values c. Create a mesh that leads to a solution d. Solve the problem by selecting the correct solver e. Perform parametric studies2. Post process information from the CMP model using surface and integration techniques that include: a. mesh quality and surface plots (descretization error) b. concentration behavior with time and space
, thorough description of the expectations, clarifying thedifference between the performance levels. The rubrics for oral communication, writtencommunication, and teamwork are included in Appendices A, B, and C, respectively.For the pilot study, the rubrics were used to assess student performance in upper-level courses inComputer Engineering Technology (CET), Electrical Engineering Technology (EET), andMechanical Engineering Technology (MET). Since the goal of this outcomes-assessment was theevaluate students’ performance near the end of their senior year, instructors provided scores inthe three rubrics for each student in the capstone courses. A vital part of an assessment process isto identify areas for improvement,4 and so the results were
Technology Environments, a research consortium of companies representing the Advanced Technology design and construction industry. Dr Chasey is a registered Professional Civil Engineer in Arizona and a member of the American Society of Civil Engineers (ASCE), the Association for the Advancement of Cost Engineering (AACE), the Institute of Environmental Sciences and Technology (IEST), International Society of Pharmaceutical Engineers (ISPE), and the Semiconductor Environmental, Safety, and Health Association (SESHA). He is also a LEED AP B+C. Page 23.618.1 c American Society for
) so that the influence of the braces on the dynamic response ofthe structure could be studied, however, these braces were not engaged in this laboratoryexperiment. The concrete piers support the structure at the four corners (see Figure 1d). Keyconcepts such as resonance, damping, modal participation, natural frequencies and mode shapes (a) (b) (c) (d) Figure 1. Bridge House (a) Exterior; (b) Interior; (c) Removable Brace Connection (N/S Page 23.628.3 Direction); (d) Concrete
a straight line.and Design” b) Determine the speed of a moving object by two different methods. c) Apply the SI and English Engineering systems of units to practical problems. d) Use tables and graphs to summarize and analyze experimental data. e) Become familiar with the NXT Programming Software and LEGO Mindstorms robots. 2. Closed-Loop a) Understand effect of open loop vs. closed loop control on variable Control Systems to be controlled
the function will be graphed. The coordinate pairs(x,y) are then split into two matrices, one that contains only x-values shown in Figure 2(a) , and theother that contains y values shown in Figure 2(b). The position of the number in a matrix mirrors Proceedings of the 2013 American Society for Engineering Education Pacific Southwest Conference Copyright © 2013, American Society for Engineering Education 585the position of the point on the plane, as shown in Figure 2. Arithmetic operations with thesematrices need further clarification. Addition and subtraction of matrices can be used to addmeshgrid-made matrices
“brainstormingwith yo-yos” can be fully developed not only as a recruiting tool, but also as a robust Page 23.1381.8pedagogical tool to help students develop a deep and better understanding of physics concepts.Bibliography[1] Committee on Highly Successful Schools or Programs in K-12 STEM Education, National Research Council, 2011, Successful K-12 STEM Education: Identifying Effective Approaches in Science, Technology, Engineering, and Mathematics, The National Academies Press, Washington, DC.[2] Machi, E., McNeill, J. B., Marshall, J. A., Lips, D., and Carafano, J. J., 2009, Improving U.S. Competitiveness with K-12 STEM Education and
) Results Seeker) -15 (17, 19) (8, 19) -20 -25 Less Outgoing (A) Figure 2 - Diagram for Assessing Communication Style6 (with example result)The following example illustrates a communication style assessment for one of the senior designcourse instructors. This individual recorded the following total number of responses for columnsA through D of the style survey: A=19; B=8; C=6; and D=17. As a check, the total number
object located in front of the robot (Primitive: Objective distance feedback)4) Sense of whether the robot has reached a goal or not (Primitive: Bump feedback)5) Sense of whether the robot has bumped into an obstacle (Primitive: Goal feedback) a) b) c) d) e) f) Fig. 6. Notes for audio feedback: a) travel forward, b) turn left, c) turn right, d) object detected, e) goal achieved, and f) bump. Page 23.492.7Using these sensory elements, the five feedback primitives were designed to provide in
on the robot’s front, back, or middle asshown in Figure 2. Then the students again perform the aforementioned activity to determine theresponse time of their robot against objects placed at 100cm and 200cm distances from the robot.They analyze their results within each group and share their answers with all the groups. (a) (b) (c)Figure 2: LEGO NXT robots used in the activity with the ultrasonic sensor mounted on the: (a) back, (b) middle, and (c) front of the robot Page 23.329.93.1.6. Evaluation The students obtain qualitative data on their synthesized robot
has an auxiliary role[28].B. Felder and Silverman’s Model of Learning Styles (FSMLS) In 1988, Dr. Richard Felder and Dr. Linda Silverman introduced a model of learningstyles, which we refer to as FSMLS, to explain what factors of the learning process wereimportant to engineers[30]. The model consisted of components of existing learning stylesmodels such as Jung and Kolb as well as their some original additions[17]. Descriptions of thedimensions of the model are listed below. • Visual/Verbal - Visual learners are those who like to receive information through images, diagrams, symbols, etc. Verbal learners prefer verbal explanations and written notes to obtain information. • Sequential/Global – Sequential
induced AC power to the usable DC power) is low[6].The research group in SFSU has proposed a new approach to efficiently convert the receivedlow-voltage AC power to a high-voltage DC power, when the induced voltage of the receivingcoil is low (500mV when the coil is open). The operating principle of the proposed AC-DCboost converter is illustrated by a simplified circuit that handles the half period of the inducedAC power, as depicted in Fig. 1 (a) and (b). In this particular design, the circuit operates thefollowing three consecutive modes during half of the input AC period. First, the switch is turnedon to short the receiving coil by itself, as depicted in the dashed line in Fig. 1(a). During thisperiod, the induced current stores the magnetic
. • Pharmaceutical principles b) The probable oral lethal dose of diethylene glycol is 0.5 g/kg weight. Determine the human weight for which this dose would be fatal. – Unique concern: FDA safeguards and regulation c) Explain why this would be dangerous even if the patient was well above – Institutional memory/history this weight. d) Develop a chronological list showing the wrong steps taken and the • Based on an actual case corrective actions necessary that would have prevented this. Discuss
School School School Minority # of students student setting population population participating population economically of school in study disadvantaged A ~2900 ~15% ~46% 24 B ~1600 ~65% ~83% 18 urban C ~1800 ~43% ~58
’ conceptualunderstanding of basic physics concepts (taken from Laws et al.,1). Page 23.761.4Although the exact definition of inquiry-based instruction varies somewhat between differentinvestigators, we will use the defining features offered by Laws et al.1 and highlighted by Princeand Vigeant17 and summarized in Table 2.Table 2: Elements of Inquiry-Based Activity Modules (a) Use peer instruction and collaborative work (b) Use activity-based guided-inquiry curricular materials (c) Use a learning cycle beginning with predictions (d) Emphasize conceptual understanding (e) Let the physical world be
(MBT) approach 44. Thus, we decided to use the MBT design forthe purposes of this study.The MBT design, depicted as Figure 2, is a series of longitudinal before and after A-B studiesthat is replicated across experimental units (individuals or a group of individuals) within a singlestudy. The intervention is introduced on a staggered basis to each experimental unit. Hence,while one group or subject receives the treatment, the other units perform the role of a controlgroup. Also, the group’s performance in the pre-intervention phase provides an additional controlfor the post-intervention phase and for benchmarking purposes. Hence, if a change is shown tooccur only and if only the intervention is introduces, the researcher can infer causality