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Wind is invisible, but watchful students can see how air in motion be detected by movement around them. This simple book introduces the different intensities of the wind, from gentle breezes that make flags flutter to powerful tornadoes that can lift a house. As the book progresses, readers discover how wind intensities can be measured, and they indirectly become acquainted with the Beaufort Wind Scale used by meteorologists. Throughout the book, the text flows like poetry, moving young readers along as easily as the wind makes little boats sail across the water.
Wind is invisible, but watchful students can see how air in motion be detected by movement around them. This simple book introduces the different intensities of the wind, from gentle breezes that make flags flutter to powerful tornadoes that can lift a house. As the book progresses, readers discover how wind intensities can be measured, and they indirectly become acquainted with the Beaufort Wind Scale used by meteorologists. Throughout the book, the text flows like poetry, moving young readers along as easily as the wind makes little boats sail across the water.
 

Building on prior experience

By Peggy Ashbrook

Posted on 2013-07-13

Child with adultsThis month I was able to spend unstructured time with a 2.5 year old and her family. In my position as an observer, not teacher, care-giver or parent, I could enjoy only observing—observing without a purpose outside my own interest. This open-ended vacation mode of observation may not have sharpened my thinking or provoke deep understanding but it allowed me to think for a long time about how children wonder and ask questions about their environment.
For example, she asked some questions that showed how curious she is about the world. “Momma, why are there numbers on the microwave?” (I was surprised that she knew the symbols were numbers!) And she said this about the staples holding an inexpensive paperback book together: “Why do they have these pins in here?” The answers about the function of the numbers for counting, and the function of the staples (new word for her) for holding, related to familiar concepts.
She was identifying an object or phenomena of interest and expressing her interest in finding out. It reminded me of another child who, at an earlier age, would point at objects and say, “Dhat!”
Children’s early exploration of, and reasoning about, the world is noted in the Framework for K–12 science education: Practices, crosscutting concepts, and core ideas, a document based on research, which was the basis for the structure and content of the Next Generation Science Standards for K-12 (NGSS). In a section titled “Children are Born Investigators” (pg 24), the Framework states, “In fact, the capacity of young children—from all backgrounds and socioeconomic levels—to reason in sophisticated ways is much greater than has long been assumed [1]. Although they may lack deep knowledge and extensive experience, they often engage in a wide range of subtle and complex reasoning about the world [20-23].”
(Reference 1, to the National Research Council’s 2007 publication Taking Science to School: Learning and Teaching Science in Grades K-8, and other references are on pages 35-36.)
That learning about the natural world begins before kindergarten is also recognized in the NGSS where the science and engineering practices used to develop the kindergarten performance expectations all state “builds on prior experiences.”
Parents, other care-givers and preschool teachers are the adults who are able to provide those experiences and answer questions that follow. We all need time to make the most of moments in our daily lives, and to be able to learn about, plan and implement experiences.

Child with adultsThis month I was able to spend unstructured time with a 2.5 year old and her family. In my position as an observer, not teacher, care-giver or parent, I could enjoy only observing—observing without a purpose outside my own interest.

 

Discourse and argumentation

By Mary Bigelow

Posted on 2013-07-13


“Let’s argue” writes the editor in his introduction to this issue. But he is referring to scientific argumentation–the goal of which is to “reach consensus in a collaborative search for truth.” The practice of arguing from evidence (along with the related practice of obtaining, evaluating, and communicating information) is identified as a scientific and engineering practice that is incorporated in the NGSS.
So what does argumentation look like in a real classroom? The featured articles in this issue have many ideas for refocusing our instruction by integrating this practice into science activities.
To show how scientists use this process, Argumentation in Science Education includes a summary of the claim, evidence, and justification in Watson and Crick’s work on the structure of DNA. The article also has a graphic showing the components of an argument and criteria that can be used to evaluate them. The authors note that the biggest challenge for students is in justifying their evidence. They illustrate this with student experiences in studying why some pendulums swing faster than others. Students will need opportunities and guidance to craft arguments successfully. [See SciLinks for more on science content related to Pendulums.]
Making and Defending Scientific Arguments describes four strategies for scaffolding students in the process of argumentation: making an inference from observations, agreeing or disagreeing with a statement (the author includes several starter sentences to guide students), testing another person’s claim, and making your own claim (with organizational lists for argument-based oral reports and lab reports). The author notes that  argumentation is a “higher-level, critical-thinking skill.” But students at any grade level can participate in the process. [See this month’s Science & Children and Science Scope.]

I’m going to share a copy of Arguing History with a social studies colleague. The authors highlight several controversies in the history of science that students can investigate through a “case study”: an overview of the controversy, group investigations into the details, argumentation in which the groups defend a position, and resolution. The case study incorporates cooperative group methods and a historical perspective.
The author of The Language of Argumentation compares argumentation (a position based on evidence) and debate (a formal setting in which two teams present their arguments using a specific format). She describes an activity to introduce students to debating (a forum that most students have never seen or participated in). Based on the topic “Does the world need nuclear energy?” the article has examples of discussion questions, a writing prompt template, a peer observation form, and examples of the claims, data, and warrants for the students’ debate. [See SciLinks for more on science content related to Nuclear Energy, Nuclear Reactors.]
What’s the Alternative? has suggestions for helping students make the connections between evidences and alternative models. Using MEL diagrams (Model-Evidence Link) students can graphically see and evaluate the connections. The authors provide examples and templates used during an investigation of climate change. [See SciLinks for more on science content related to Climate Change.]
Another strategy to help students learn about and use the practice of argumentation is through role-playing activities. The authors of Hook, Line, and Sinker note that although these activities may take several class periods, they provide a context for students to learn about and understand core science content, such as (in this case of the population decline of bluefish tuna) species interdependence, life cycles, limiting factors, carrying capacity, population dynamics, and predation. By giving students a role to play and an audience, they make a more personal connection beyond definitions. The article has links to role cards, record sheets, discussion questions, and other materials. [See SciLinks for more on science content related to Ocean Fisheries.]
 
 

 

Science of golf: handicap

By admin

Posted on 2013-07-12

Although golf is a game that is often thought of as elitist, it has many egalitarian aspects, such as the handicapping system! Find out more about it in Science of Golf: Handicap Index. Haven’t been golfing long? Or, like me, enjoy walking the course but don’t take time to practice? No problem in this sport. The handicapping system allows me to still fare somewhat reasonably in competition with my senior-tour-wanna-be golfer husband and college golfer daughter. And it allows us all to feel good about our game when we play on more challenging courses than our skills might be ready for.

The video is just one of the Science of Golf series produced by NBC Learn in partnership with the United States Golf Association (USGA) and Chevron. This one gave NSTA a chance to develop a math inquiry-based lesson plan that will help fortify your STEM efforts. The lesson plan provides you with ideas and guidance on how to highlight NGSS Science and Engineering Practices as well as address Common Core Standards for Mathematics.

The videos are available cost-free on www.NBCLearn.com. Spend some time with them now as your thoughts about how to spice up your fall lesson plans begin to take shape. And leave us a comment about how you see these working in your classrooms!

–Judy Elgin Jensen

Image of Valhalla Golf Club courtesy of Dan Perry.

Video

SOG: Handicap Index a good example of how mathematical procedures can evolve as new needs are discovered and people create solutions to address these needs.

STEM Lesson Plan—Adaptable for Grades 7–12

The lesson plan provides ideas for STEM exploration plus strategies to support students in their own quest for answers and as well as a more focused approach that helps all students participate in hands-on inquiry.

The SOG: Handicap Index lesson plan describes how students might explore math applications and investigate a question the handicap index and its role in golf competition.

You can use the following form to e-mail us edited versions of the lesson plans: [contact-form 2 “ChemNow]

 

Although golf is a game that is often thought of as elitist, it has many egalitarian aspects, such as the handicapping system! Find out more about it in Science of Golf: Handicap Index. Haven’t been golfing long? Or, like me, enjoy walking the course but don’t take time to practice? No problem in this sport.

Named an Outstanding Science Trade Book for Students K-12!
Named an Outstanding Science Trade Book for Students K-12!
Named an Outstanding Science Trade Book for Students K-12!
Named an Outstanding Science Trade Book for Students K-12!
 

Science of golf: evolution of golf club

By admin

Posted on 2013-07-09

The United States Golf Association (USGA) took the 2013 U.S. Open to the Merion Golf Club in Ardmore, Pennsylvania, just outside Philly. It was the fifth Open Championship to be held there in the 101 years since the East Course opened. Here, on this tight walking course, fairway accuracy was more important than driving distance. Yet, over the years, the driver has become the iconic tool of the game, and the distance of the drive a statistic that defines one’s golfing ability. Find out how evolving technology and engineering practices have changed the club over time in Science of Golf: Evolution of the Golf Club.

This installment of the Science of Golf series, produced by NBC Learn in partnership with the United States Golf Association (USGA) and Chevron, is one of ten that highlights the science, technology, engineering, and math behind the sport. And the companion NSTA-developed lesson plans give you myriad ideas for building lessons around them or incorporating them into your daily routine.

The videos are available cost-free on www.NBCLearn.com. Leave a comment and us know how you like them!

–Judy Elgin Jensen

Image of vintage driver courtesy of Craig Miles.

Video

SOG: Evolution of the Golf Club discusses the history and physics of golf clubs, along with ongoing research and development aimed at producing progressively better clubs.

STEM Lesson Plan—Adaptable for Grades 7–12

The lesson plan provides ideas for STEM exploration plus strategies to support students in their own quest for answers and as well as a more focused approach that helps all students participate in hands-on inquiry.

SOG: Evolution of the Golf Club describes how students might investigate a question about the design of golf clubs and how the design is related to its functionality.

You can use the following form to e-mail us edited versions of the lesson plans: [contact-form 2 “ChemNow]

 

The United States Golf Association (USGA) took the 2013 U.S. Open to the Merion Golf Club in Ardmore, Pennsylvania, just outside Philly. It was the fifth Open Championship to be held there in the 101 years since the East Course opened. Here, on this tight walking course, fairway accuracy was more important than driving distance.

 

Discourse and argumentation

By Mary Bigelow

Posted on 2013-07-07

“Engaging in argument from evidence” is one of eight practices described in A Framework for K-12 Science Education and the NGSS. Teachers may be wondering what this might look like in a middle school classroom, where students seem to have a lot of experience in arguing over events in their social lives but not much in argumentation in science.
If you’re new to this type of activity in class, see how the editor of Science Scope (in the Editor’s Roundtable) describes her experiences in implementing argumentation. She suggests learning more about the practice, being patient and persistent with students (and yourself), helping and encouraging all students (not just the more vocal ones) to participate, providing frequent opportunities and modeling, and establishing a positive environment for students to learn. The featured articles address these with examples of real classroom activities as well as in-depth discussions of the process of argumentation.
Many of us provide opportunities for students to learn the difference between observations, opinions, and inferences. The article Helping Students Evaluate the Strength of Evidence in Scientific Arguments describes how to use the concept of inferential distance to examine the strength of an argument. The authors define this as the “size of the conceptual leap made in going from evidence to conclusion.” They use an example of an afterschool project in which students studied pond ecosystems to illustrate three types of inferential distances, and they include some instructional activities to teach about inferences. [See SciLinks for more on science content related to Aquatic Plants and Animals, Aquatic Ecosystems, Lakes and Ponds]
If you’re concerned about how to connect argumentation with the development of core ideas, A Negotiation Cycle to Promote Argumentation in Science Classrooms has some suggestions. The authors describe six phases of the cycle: identifying a research question, small group investigation, presenting group arguments, comparing arguments with published information, presenting revised arguments, and individual reflection. Using the human respiratory system as the content, the article describes and illustrates each phase with handouts and examples of student work. Guidelines and a rubric are included. [See SciLinks for more on science content related to the Respiratory System]

Assessing Students’ Arguments has tools for teachers and students to use to assess the strength of student arguments. The checklist is student-friendly and includes places to annotate the presence (or absence) of a claim, the appropriateness of the justifications, and the type of rebuttal. The authors include examples of what the use of the checklist looks like in a class in which students read about the construction of a dam in a remote part of the Amazon basin. They also provide examples of student work and a brief look at how the process was applied to an investigation of density. [See SciLinks for more on science content related to the Rainforest and Density]
Growing plants from seeds is a common activity in science classrooms. Let’s Talk Science shows how to kick this up a notch and incorporate argumentation about cells and plant growth. Three activities are described that focus on the question “Are seeds alive?” The author also provides a rubric, activity sheets with directions, and samples of student work. For assistance in modeling the process of argumentation, the author also includes some scenarios for role-playing and a list of prompts to scaffold the process. [See SciLinks for more on science content related to Seed Germination, Plant Growth]
The authors of Turning the Science Classroom Into a Courtroom describe a courtroom metaphor to help students understand argumentation. Most students are familiar with courtrooms through popular television programs, so this seems to be a good way to scaffold their understanding. The next step might be to “debate” topics that are more complex or controversial or about which students have misconceptions. A sample list of topics is provided, and they illustrate how scientific argumentation aligns with literacy standards in reading, writing, speaking, and listening.
In many classrooms, discussions consist of the teacher asking questions and providing the structures for student interactions. The authors of The Practice of Critical Discourse in Science Classrooms differentiate between higher levels of communication, including conversation (“the dynamic exchange of ideas and reflection”), critical discourse (“accentuating connections between ideas and evidence”), and argumentation (“use of evidence to process and learn about ideas)”). The authors use a demonstration of the sublimation of dry ice in beakers of hot and cold water to illustrate what this could look like in a classroom. They then describe six elements to foster this level of thinking and communicating. The article also has suggestions for applying argumentation in a class in which the students have a diversity of background experiences. Students learn that science is not merely a set of established facts, but a process involving critical thinking and processing new ideas.
Show Me the Evidence describes several strategies that can be use to support teachers as they incorporate more evidence-based discourse in the classroom: analyzing the teacher-student and student-student conversations in video clips, role-playing, peer coaching, the use of wait time, and fostering a “safe” environment in the classroom for argumentation.
 

“Engaging in argument from evidence” is one of eight practices described in A Framework for K-12 Science Education and the NGSS. Teachers may be wondering what this might look like in a middle school classroom, where students seem to have a lot of experience in arguing over events in their social lives but not much in argumentation in science.

 

Science of golf: volume and displacement

By admin

Posted on 2013-07-05

Further your STEM efforts with the Science of Golf video series from the partnership of NBC Learn, the United States Golf Association (USGA), Chevron, and NSTA. As the governing body for the sport, one aspect of the USGA’s role is to regulate and test all golf equipment for conformance to the Rules of Golf. In this installment, Science of Golf: Volume, Displacement & Buoyancy, students get a glimpse of how science practices transfer over to the working world of sports.

Try out the NSTA-developed lesson plan that provides you with ideas and guidance on how students might investigate associated questions. Worried about getting clubs for students to use as lab equipment? Look no further than a garage sale or your local used sporting goods resale shop. Used clubs and balls can be had for very low cost. Or check in with a nearby golf course. People leave behind clubs and balls on the course all the time and they might just have some unclaimed ones to give you. And, your students will likely have ideas of their own about how to build them!

Find the series—available cost-free—on www.NBCLearn.com. Check back often over the coming weeks as NSTA highlights each video in the series in this blog. We look forward to hearing from you about how you expect to use the videos as well as how the lesson plan works out in practice with your students. Once you try it out, please leave comments below each posting!

–Judy Elgin Jensen

Image of driver at the tee courtesy of Cliff Muller.

Video

SOG: Volume, Displacement & Buoyancy describes Archimedes’ principle and how it is applied to the problem of finding the volume of irregularly shaped club heads via the buoyancy force on them when submerged in water.

STEM Lesson Plan—Adaptable for Grades 7–12

The lesson plan—adaptable for grades 7 to 12—provides ideas for STEM exploration plus strategies to support students in their own quest for answers and as well as a more focused approach that helps all students participate in hands-on inquiry.

The SOG: Volume, Displacement & Buoyancy lesson plan guides students in the design an apparatus that determines the volume of a golf club or other irregularly-shaped object.

You can use the following form to e-mail us edited versions of the lesson plans: [contact-form 2 “ChemNow]

 

Further your STEM efforts with the Science of Golf video series from the partnership of NBC Learn, the United States Golf Association (USGA), Chevron, and NSTA. As the governing body for the sport, one aspect of the USGA’s role is to regulate and test all golf equipment for conformance to the Rules of Golf.

 

Science of golf: work, energy, power

By admin

Posted on 2013-07-02

Welcome to the Science of Golf! NBC Learn has partnered with the United States Golf Association (USGA) and Chevron to bring you this video series highlighting the science, technology, engineering, and math behind the sport. And once again, NSTA has developed lesson plans to help you build on the videos as you carry out STEM initiatives in your middle- and high-school science courses.

Whether you’re a fan who follows Rory, Phil, Paula, and Suzann, a player yourself, or someone like my farmer father who says that hitting a little white ball around a pasture just doesn’t make much sense, the sport can bring STEM concepts to life for your students. Use the video Science of Golf: Work, Power, and Energy as a springboard for student investigations into these concepts. The lesson plan provides you with ideas and guidance on how to get started.

The videos are available cost-free on www.NBCLearn.com. NSTA will also highlight each video in the series in this blog over the next weeks, within the Videos and Lessons category, and we hope you will try them out in the classroom. When you do, please leave comments below each posting about how well the information worked in real-world classrooms. 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.

–Judy Elgin Jensen

Image of putt courtesy of Michelle Hofstrand.

Video

SOG: Work, Power, and Energy features professional golfer Suzann Pettersen and her putting prowess to show how work done on the ball changes energy from its potential to kinetic form.

STEM Lesson Plan—Adaptable for Grades 7–12

The lesson plan provides ideas for STEM exploration plus strategies to support students in their own quest for answers and as well as a more focused approach that helps all students participate in hands-on inquiry.

SOG: Work, Energy, and Power describes how students might investigate a question about how one might putt a golf ball and calculate energy gain or less and power delivered.

You can use the following form to e-mail us edited versions of the lesson plans: [contact-form 2 “ChemNow]

Welcome to the Science of Golf! NBC Learn has partnered with the United States Golf Association (USGA) and Chevron to bring you this video series highlighting the science, technology, engineering, and math behind the sport. And once again, NSTA has developed lesson plans to help you build on the videos as you carry out STEM initiatives in your middle- and high-school science courses.

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