At its core, science is about making sense of the world around us. Therefore, science education should engage students in that sense-making process. Helping students make sense of disciplinary core ideas and crosscutting concepts by engaging in scientific practices is the key innovation of the "Next Generation Science Standards"…

Modeling is one of the scientific practices featured in the "Next Generation Science Standards" ("NGSS") (Achieve Inc. 2013). This practice is central to the work of science because modeling activities can prompt new questions for investigation, which, in turn, can lead to evidence and information that can be incorporated into…

Students often have difficulty grasping the principles of dimensional tolerances and frequently fail to recognize that dimensioning practice has a significant impact on the tolerance of part features. This observation may be attributed to several factors, not the least of which are changes in prior student education and life experiences and…

As a chemistry teacher, Rosemary Davidson has found "infographics" (information graphics) successfully engage her students in science--not only in carrying out the research for classroom projects but also in presenting the results of their research to their peers. This article will help teachers integrate student-created infographics…

Design and drafting are subjects long taught in technology education, and subjects that retain high status in the profession. Admittedly, since the initial publication of Standards for Technological Literacy in 2000, design has taken on a larger role and meaning in the technology education profession. However, design continues to be delivered…

Information graphics, or "infographics," are widely used to convey complex science and its importance to society. To be educated consumers and citizens, students need to understand and be critical of information presented in graphical form. Researchers, accordingly, have called for fostering the "representational competence" of…

Teaching "Engineering Graphics" to freshman engineering students poses challenges to instructors as well as to students. While the instructors are confronted with a lack of material / text book that covers the broad scope of the subject matter, the students struggle to correlate newly developed skills to real-world engineering design problems…

In recent years major changes have been introduced into the system of higher education in the common European Higher Educational Area (EHEA). On account of the Bologna Process the EHEA is leading to greater compatibility and comparability of the systems of higher education and is making it easier for learners to be mobile and for institutions to…

Of the eight practices of science identified in "A Framework for K-12 Science Education" (NRC 2012), helping students develop and use models has been identified by many as an anchor (Schwarz and Passmore 2012; Windschitl 2012). In instruction, disciplinary core ideas, crosscutting concepts, and scientific practices can be meaningfully…

This paper describes the development and implementation of an online working drawing review video and online assessment tool. Particular attention was paid to dimensioning and ASME ANSI Y14 standards with the goal of improving the quality of the working drawings required in final design project reports. All members of freshmen design teams in the…

Students sometimes find introductory drafting and design a boring subject. They must learn the basic skills necessary for drafting and architecture and this may require repetition in order to reinforce those skills. One way to keep students interested is to have them draw objects they encounter in their own lives instead of abstract machine parts…

The objective of this paper is to present applications of solid modeling aimed at modeling of complex geometries such as splines and blended surfaces in advanced CAD courses. These projects, in CAD-based Mechanical Engineering courses, are focused on the use of the CAD system to solve design problems for applications in machine design, namely the…

Three-dimensional computer-aided drafting (CAD) software, sometimes referred to as "solid modeling" software, is easy to learn, fun to use, and becoming the standard in industry. However, many users have difficulty creating complex geometry with the solid modeling software. And the problem is not entirely a student problem. Even some teachers and…

The paper presents a unique approach in associating perspective projection with the image beheld by the eye and demonstrates that all graphical and photographic perspective projections must contain distortion when compared to the image beheld by the eye. (Contains 8 figures.)

The prevalence of feature-based 3D modeling in industry has necessitated the accumulation and maintenance of standard feature libraries. Currently, firms who use standard features to design parts are storing and utilizing these libraries through their existing product data management (PDM) systems. Standard features have enabled companies to…