Science of Innovation: anti-counterfeiting devices

Knockoffs. You can buy them anywhere—from a street vendor, a flea market, or the local discount shop. But what if you’ve decided to pay more for the “real thing”? How can you be sure you’re getting the handbag, shoes, device, or even medication you’re paying for?

That’s going to be less of a concern thanks to the innovation resulting from the collaborative effort of Drs. Jeremy Wilson and Evangelyn Alocilja at Michigan State University. Take a look at Science of Innovation: Anti-Counterfeiting Devices to find out how knockoffs might be knocked out of the marketplace.

The series is available cost-free on www.NBCLearn.com, www.science360.gov, and www.uspto.gov/education. Use the link below to download the lesson plans in a format you can edit to customize for your situation. And if you had to make significant changes to a lesson, we’d love to see what you did differently, as well as why you made the changes. Leave a comment, and we’ll get in touch with you with submission information. We look forward to hearing from you!

–Judy Elgin Jensen

Image of fake Chuck Taylors courtesy of Bill Walsh.

Video

SOI: Anti-Counterfeiting Devices highlights how Dr. Evangelyn Alocilja contributed her expertise in nanotechnology, which she had used in her own research to detect bacteria and other contaminants in food, to the problem of counterfeit goods.

Lesson plans

Two versions of the lesson plans help students build background and develop questions they can explore the clues that might identify a product as an authentic name brand or a knockoff and what strategies might they employ to ensure their products are authentic. Both include strategies to support students in their own quest for answers and strategies for a more focused approach that helps all students participate in hands-on inquiry.

SOI: Anti-Counterfeiting Devices, A Science Perspective models how students might investigate how the size of a soluble particle affects its rate of dissolving.
SOI: Anti-Counterfeiting Devices, An Engineering Perspective models how students might design anti-counterfeiting devices.

You can use the following form to e-mail us edited versions of the lesson plans:

Your Name (required)

Your E-mail (required)

Your Message

Attach a file:

Please enter this string of characters in the box below:
captcha

Posted in Videos and Lessons | Tagged , | Leave a comment

The future is here

In addition to NSTA publications, I read many others related to science and education, both in print and online. I usually scan the pages and images, focusing on articles of interest. However, the May 2013 issue of Smithsonian was so compelling, I had to read it cover to cover! The theme was “The Future Is Here.” Here is a sampling of the STEM-related articles featured in this issue:

The Body Eclectic – There’s more to microorganisms that co-exist in the human body than digestion. This article looks at how these organisms affect both physical and emotional health. It could lead to an interesting class discussion on correlation vs causation.

The Printed World – How will 3-D printers change our concept of a “factory” when creating or replicating objects can be done anywhere?

Clear as a Bell – Alexander Graham Bell is credited with inventing the telephone, but what did his voice actually sound like? The article describes the technology used to extract sounds from media that are more than 100 years old. What the article doesn’t have is a link to the actual voice, but here is a related YouTube video with his actual words.

Block Party – Legos are more than toys. Engineering and programmable robots are some of the ways these little blocks can be used as learning tools.

The Road Less Traveled – Here is an infographic on STEM careers. Why do people who have an early interest in STEM topics not follow through in their career choices?

X and the City – A mathematician takes the readers on a tour of a city in this article on quantitative urbanism. “Many aspects of modern cities can be reduced to mathematical formulas.” What are the implications for solving problems or predicting trends in housing, crime rates, or land use?

Posted in SciLinks | Tagged , , | Leave a comment

Science of Innovation: synthetic diamonds

You’re celebrating a romantic little restaurant or some other special place. Your significant other presents you with a small velvet box containing a huge diamond ring or flawless diamond cuff links. Would you like the sparkling gems any less if you knew they came from a lab and not a diamond mine?

This installment of the “Science of Innovation” video series—Synthetic Diamonds—describes an innovative process that might just be the beginning of that dazzling rock on your finger—no mining, no waiting millions of years. Synthetic diamonds (no, not cubic zirconia, but real, 100 percent diamond) are in your immediate future.

Synthesize your STEM efforts with this and other videos in the “Science of Innovation” series from the collaborative team of NBC Learn, United States Patent & Trademark Office, the National Science Foundation, and NSTA. One of the reasons the USPTO got involved in this effort to begin with was to show how the principles of intellectual property and innovation can help further motivate and engage your students in authentic STEM experiences. By learning how people invent new things and applying the creative design and engineering process in your classroom, students begin to understand the essence of the fields of science and engineering. The series is available cost-free on www.NBCLearn.com, www.science360.gov, and www.uspto.gov/education. Take a look, and then let us know what you think!

–Judy Elgin Jensen

Image of the largest model of diamond in the world created as a Summer Exhibition for the Royal Society of Chemistry. It contains 31,395 crystal clear balls representing the carbon atoms. A real diamond containing 31,395 atoms would be less than one billionth of a carat, invisible to the eye, and worth less than a penny. Courtesy of Bruce Stokes.

Video

SOI: Synthetic Diamonds highlights the research and innovation related to the production of synthetic diamonds.

Lesson plans

Two versions of the lesson plans help students build background and develop questions they can explore how the physical properties of diamonds, both synthetic and natural, make them useful not only as jewelry, but also as industrial abrasives and engraving tools, in medicine to deliver cancer-fighting drugs to affected parts of the body and to cover openings in X-ray chambers and other types of imagining devices, in high-end audio equipment, and as semiconductor coatings for computer chips, among many other uses. Both include strategies to support students in their own quest for answers and strategies for a more focused approach that helps all students participate in hands-on inquiry.

SOI: Synthetic Diamonds, A Science Perspective models how students might investigate a question using media resources.

SOI: Synthetic Diamonds, An Engineering Perspective shows how students might investigate structure and its relationship to strength.

You can use the following form to e-mail us edited versions of the lesson plans:

Your Name (required)

Your E-mail (required)

Your Message

Attach a file:

Please enter this string of characters in the box below:
captcha

Posted in Videos and Lessons | Tagged , | Leave a comment

Keeping Science Safe

Guest Post by LaMoine L. Motz, PhD, Sandra West Moody, PhD, and James T. Biehle, AIA

The cover article “Science on Wheels” in the April 2013 issue of NSTA Reports raises a number of issues which, in our opinion, fly in the face of good judgment. While we recognize there are many schools with inadequate science teaching facilities, using unsafe practices to provide science spaces can be a lawsuit waiting to happen. Recent research reveals how widespread the problem of “floating” science teachers is with more than 1,000 Texas science teachers reporting they have to teach off of a cart (Kennedy, L. and West, S., 2013).

In the NSTA Guide to Planning School Science Facilities, 2nd Edition (hereinafter NSTA Guide), we discuss a number of safety issues which, if not corrected, can lead to accidents and lawsuits. A particularly egregious example of such a safety issue is described in “Science on Wheels” where a teacher states that “mostly what we had to move on a cart were just solutions.” The NSTA Guide mentions just such an activity on page 42 in describing some of the impacts of Occupational Safety and Health Administration (OSHA) on science facilities and instruction. There are numerous reports of cart accidents including cart wheels sticking in a shallow doorway threshold resulting in the cart stopping and a glass jug of acid falling off which produced toxic fumes and students running around corners into and knocking the cart over, subsequently breaking jars of chemicals and equipment. (Laboratory Safety Institute, 2013)

On pages 41 and 42 of the NSTA Guide, under a discussion of tort law, the situation in the schools mentioned in “Science on Wheels” could readily be defined as “misfeasance” (a principal assigning a science class to a non-science classroom), “nonfeasance” (failure to provide an adequate number of science laboratory/classrooms, and “malfeasance” (forcing an employee to assume an unnecessary risk or use unsafe methods.

ISueBig

Billboard near Detroit

As often emphasized in our “Planning and Designing School Science Facilities“ workshops and seminars at NSTA regional and national conferences, and also numerous state conferences, the person who will know about this article (“Science on Wheels”) in the case of a lawsuit resulting from such patently unsafe practices is the plaintiff’s attorney.  NSTA President–Elect Juliana Texley, a former superintendent, describes working with an architect who had no idea of what it was like during class changes in a middle school. The architect was instructed to stand on one tile in the middle of the corridor as classes changed and nearly got swept away. We believe it is a mistake for the NSTA Reports to suggest that it would be safe to move “solutions” around the halls from room to room on a cart.

Science teachers and students are at risk whether the teacher moves from one science room to another science room or is required to teach in non-science rooms. The greater risk is, of course, for science students to have to do science activities in a non-science room lacking required safety equipment such as eyewashes. When a room is used for laboratory activities, it becomes a “science laboratory” and is subject to fire code occupancy load requirements.

WFSRollingDemoTableCropped

Movable teacher’s demo table

Further, leaving science materials in a non-science classroom, supervised primarily by a teacher not trained in safe science instruction, is an invitation to further lawsuits due to students and, possibly, teachers being injured as they move, or otherwise deal with science equipment and materials left in, say, an English classroom. Leaving science materials in a room with a non-science trained teacher is extremely unsafe.

The prep room concept described at St. Stephen’s Episcopal School sounds like a further invitation to a lawsuit if there is not a door which can be locked. Prep rooms must be off limits to students, protected by lockable doors. It is possible to design lockable mobile tables that will fit through a standard 36” wide door but having a large opening into the classroom will invite curious students to explore an area they should not enter.

Some suggest we should recognize that many science teachers are in the same predicament discussed in the NSTA Reports article and we should propose ways to teach science more safely when adequate science teaching facilities are not available. However, we strongly believe that it is not possible to safely teach an effective science program in a general purpose classroom as virtually all such classrooms are unequipped with even the basic safety equipment such as a fire blanket and fire extinguisher. In visiting more than 450 schools, nationally, almost none have a sink, and we have yet to see a safety shower or even portable eyewash in a general purpose classroom. We believe it is our responsibility to emphasize that safe science can only be taught in a properly equipped science classroom and that the practice of using general purpose classrooms for science and transporting chemicals and equipment from room to room, as described in “Science on Wheels,” should be strongly discouraged to district patrons, school boards, administrators, architects and facilities directors.

Constructing an adequate number of safe, spacious and well-equipped science lab/classrooms and appropriately located and designed science storage facilities should be seen as an investment in the future. The alternative is to take the approach discussed in “Science on Wheels” which can result in spending a significant amount of money defending unnecessary lawsuits instead of providing a safe science learning environment.

 

References:

Motz, L., Biehle, J., and West, S. (2007). NSTA Guide to Planning School Science Facilities, 2nd Edition. Arlington, VA: NSTA Press.

Kennedy, L & West, S. 2013.  Safety in Texas secondary science classrooms: 1990-2007.Proceedings of the 116th. Annual Meeting of the Texas Academy of Science, Kerrville, TX p .42

Laboratory Safety Institute, 2003. Learning by Accident, www.labsafety.org/ Natick, MA

Posted in NSTA Reports | 2 Responses

Soil erosion in miniature

Soil on a slope being eroded by water and foot traffic.With the heavy spring rains in my neighborhood there has been some erosion of soil on a slope in the park and soil from the baseball field has been washed across the sidewalk. There are not many fiction or non-fiction books for young children that include a discussion about soil erosion, or erosion in general. If your class becomes interested in learning about erosion, they can write their own story, and illustrate it with photos or drawings of places where they saw soil washed away by water or blown away by wind. See the resources on “dialogic reading,” listed at the bottom, to learn how this interactive shared reading experience with an adult and a few children supports gains in reading.

Children build a hill of sand and add model houses.Children can make a model of a neighborhood in sand in a plastic tub or in the sandbox and then make it “rain” to demonstrate erosion.

Children make it If indoors, use a tray or baking pan with sides 6-9cm tall, and make a layer of damp sand that halfway fills the pan. Have children shape the sand into a landscape with hills, mesas, valleys, river channels and depressions for ponds. Because sand allows water to flow between the grains, their rivers and ponds will not hold water, but water will flow down towards the low points in their landscape before sinking into the sand. Provide many small objects for children to use to create a scene to represent their community—small blocks for buildings, pieces of bias tape or strips of cardboard for roads, twigs for people, pebbles for animals, and small leaves for trees.

Water has eroded the landscape.When their set-up is complete, have them draw or photograph it. Change the setting on the spray bottle to a single stream, or provide an empty condiment bottle with a single hole. The children can now spray or pour more water to move the sand and observe how moving (eroding) the sand affects their community. Have them stop and draw or photograph the set-up as it changes. When the children are finished eroding their landscape, pour the water off outside because wet sand can clog a sink.

Have the children use their drawings and photographs as illustrations for a book. Ask them to write or dictate what they saw happening, and add any comments that you wrote down during the activity. This is your class’s book about erosion!

Here are two resources about “dialogic reading,” a way for children to get the most out of storytime.

“Getting the Most Out of Picture Books,” a video series on dialogic reading from the Getting Ready to Read pages of the National Center for Learning Disabilities, Inc.

“Lap Reading with Kindergarteners” by Herman T. Knoph and H. Mac Brown in Young Children September 2009.

 

Posted in Early Years | Tagged , , , , | Leave a comment

Rodger Bybee Makes The Case for STEM Education

The Case for STEM EducationWhat do we mean when we say “STEM education”? For years now, we’ve recited that STEM means “science, technology, engineering, and mathematics.” We’re often somewhat less precise when it comes to defining what STEM education is. Rodger Bybee’s latest book, The Case for Education: Challenges and Opportunities, takes a critical look at the many diverse explanations that exist in education today and provides a direction to STEM education, if not a definition.

Bybee states that, in his experience, discussions regarding STEM education fall into three separate but related goals.

“Education should contribute to:

  • a STEM-literate society
  • a general workforce with 21st-century competencies, and
  • an advanced research and development workforce focused on innovation.

The broader category, which applies to everyone, is STEM literacy,  which refers to an individual’s

  • knowledge, attitudes, and skills to identify questions and problems in life situations, explain the natural and designed world, and draw evidence-based conclusions about STEM-related issues;
  • understanding of the characteristic features of STEM disciplines as forms of human knowledge, inquiry, and design;
  • awareness of how STEM disciplines shape our material, intellectual, and cultural environments; and
  • willingness to engage in STEM-related issues and with the ideas of science, technology, engineering, and mathematics as a constructive, concerned, and reflective citizen.”

Throughout the book, Bybee provides practical guidance and suggestions for STEM reforms that are appropriate for varied contexts. Thought-provoking questions, such as STEM Education Seems to Be the Answer—What Was the Question?; If STEM Is an Opportunity, What is the Federal Government’s Role?; How Can a State, District, or School Develop a Coherent Strategy for STEM Education?; and What Is Your Action Plan for STEM Education? are addressed in the chapters to provide individuals in leadership roles with a better understanding of how to take action on STEM initiatives.

Read a sample chapter:  How Is STEM Education Reform Different From Other Education Reforms?

This book is also available as an e-book.

Posted in NSTA Press Books | Tagged , , | Leave a comment

Classroom Science: Finding the Right Balance Between Supervision and Curious Experimentation

A recent Huffington Post article (Kiera Wilmot, 16, Arrested And Expelled For Explosive ‘Science Experiment’) has drawn quite a bit of attention from our readers. And it certainly got our attention as well. The National Science Teachers Association promotes excellence and innovation in science teaching for all, and we value the need for supervision and safety. But we also want to encourage curiosity and experimentation. Bloggers have been weighing, for example http://bit.ly/104LjsX. We would like to hear from science teachers—is this an isolated incident or do you worry about students being criminally charged, and does it put a damper on your science program? Do your students express concern about exploring for themselves? Please join the conversation! And please use the safety resources below should you need guidance in this area.

Science Safety Resources

  • The Integral Role of Laboratory Investigations in Science Instruction (NSTA Position Statement)
  • NSTA’s Safety Portal, with guidelines and links to a wealth of safety resources, including guidelines from NSTA’s safety advisory board and safety resource lists by grade level. These links are collated from NSTA’s safety advisory board, various states’ departments of education, NSTA affiliates, news publications, and industry leaders. Please note that this resource compilation DOES NOT SUPERCEDE SCHOOL, SCHOOL SYSTEMS, LOCAL, STATE, OR FEDERAL LAWS, REGULATIONS, CODES, AND PROFESSIONAL STANDARDS. Ultimately it is the responsibility of the science teachers and school administrators to use appropriate legal standards and best professional practices under duty of care to make it safer in the science laboratory.
  • Farewell MSDSs; Welcome SDSs! (NSTA Reports; November 2012)
    Revisions to the Hazard Communication Standard by Occupational Safety & Health Administration published in May 2012 impact teachers, schools, and their chemical suppliers. The author notes the changes under the revisions and the training educators will be required to have.

Should your district require in-depth training in the subject, please contact Zipporah Miller (zmiller@nsta.org).

The NSTA Learning Center contains a wealth of resources, which can be searched by grade level, discipline,and so forth. A sampling is below. Continue reading …

Posted in NSTA Reports | Tagged , , , , , , , | Leave a comment

NSTA Press: 2013 AEP Distinguished Achievement Awards Finalists

NSTA Recommends catalog coverThe National Science Teachers Association (NSTA) is pleased to share the news that several of our publications have been named finalists for the 2013 Association of Educational Publishers Distinguished Achievement Awards. We would like to thank our staff. And more importantly, we’d like to thank the authors, reviewers, and field editors who collaborate with us daily to publish quality materials upon which teachers can rely. We could not bring our award-winning resources to the science education community without their years of experience and willingness to share their Career of the Month article covertime and effort!

Beacon Award Finalist

NSTA Recommends Catalog
NSTA Press
(Catalogs)

PerDrawing Out... article coveriodicals/Editorial Finalists

Career of the Month
By Luba Vangelova
The Science Teacher
(Department/Column, Adult)

Drawing Out the Artist in Science Students
SweetGrass... article coverBy Al Camacho, Gary Benenson, and Carmen Patricia Rosas-Colin
Science and Children
(Feature Article, Adult)

Sweetgrass Science
By William Veal and Steven Nagy
Science and Children
(Feature Article, Adult)

Structure article coverThe Structure and Assessment of a Unique and Popular Interdisciplinary Science Course for Nonmajors
By Tonya Laakko Train and David E. Gammon
Journal of College Science Teaching
(Learned Article, Adult)

Professional Development Finalist

Rise and Shine book coverRise and Shine: A Practical Guide for the Beginning Science Teacher
By Linda Froschauer and Mary L. Bigelow
NSTA Press
(Methodology)

Posted in NSTA Press Books | Tagged , , | Leave a comment

Science and families

Communicating with parents and other caregivers is important for student success. The topic of parental involvement has been addressed in NSTA blogs and publications, with ideas for parent conferences, back-to-school nights or open houses, summer activities, and family science events. Here’s a quick look  at some of these ideas:

From the Ms. Mentor blog

  • Facilitating Parental Support: My school wants to encourage more parental involvement. Any suggestions?
  • Meet the Parents: I’m a new middle school science teacher, and the thought of back-to-school night is already making menervous. What should I expect? What should I do?
  • Intergenerational Science Activities: My school is planning an Intergenerational Day, in which students invite grandparents or other guests to attend school for part of the day. We’re also inviting residents of a local retirement community. I’d like to participate with my fifth grade science classes, but I want our guests to be more than spectators. Do you have any suggestions for appropriate activities?
  • Take-home projects: I’m thinking of requiring some “take-home” projects for students this year. (I teach at the elementary level). I think these would provide a good opportunity for students and parents to work together on science topics. Do you have any suggestions or guidelines?
  • Vacation Activities for Students: How do you get families and students to participate in science in the summer? I’m looking for ideas to engage upper elementary students.

From the Early Years blog

From other NSTA publications

Posted in Ms. Mentor | Tagged , | 2 Responses

Flatten the Classroom with the iGo Microscope

Although many handheld technologies of Star Trek seem antiquated, or perhaps even steam punkish in todays world, there are still a few pieces of Treknata that we dream of. But that list just got one item shorter with the iGo wireless microscope. While not quite a Medical Tricorder, the iGo does capture the essence of Trekian magic with its scope in the right hand while the microscope image appearing on a tablet in the left hand (or vice-versa of course).

iGo scope

The iGo scope talks wirelessly to the iPad

A medical tricorder would, in theory, allow the placement of a probe upon various parts of an injured subject in order to collect the data necessary for a proper diagnosis. Of course later iterations of the Enterprise’s wanderings utilized scanning tools that completely circumvented both the need for probes, and the interpretation of data. But that is a topic for another blog-perhaps one about the Standoff Patient Triage Tool.

The SmartScope iGo wireless microscope is a substantial push forward flattening the access to the microscopic world in the classroom. iPads and other tablets are rapidly becoming the digital hubs of powerful portable science laboratories that operate independent of power outlets, the greater internet, and often wires in general. SmartSchool’s iGo microscope opens many new inquiry avenues previously barred by wired network connections, power requirements, prohibitive costs, and complex user interfaces.

iGo scope

The iGo scope is easy to use, and quickly generates highly magnified images on a tablet screen where they can be captured into the tablet’s photo database.

Priced about the same as one base model iPad Mini, the iGo Microscope boasts an intuitive interface complete with large focus wheel, adjustable LED lighting, and picture button all running on three rechargeable AA batteries (included). But the real thrill of iGo is found in combination with the free App named Wi-Viewer. The iOS Wi-Viewer app / Android app to shows, captures, and plays back the visual magic of the microscopic world. Continue reading …

Posted in Science 2.0 | Tagged , , , , , , , , , , , , | 2 Responses