Nov16

Argumentation in Science

Science and Children cover Subtle differences in words can make a big difference: for example "arguing" and "argumentation." Our students see TV shows where arguing is the most common activity. People shout at and interrupt each other, spout ideas that may have little or no truth to them, and have little tolerance for different points of view or experiences. But structured and respectful argumentation can be a wonderful experience anywhere, especially in a classroom.

The skills involved in argumentation have to be taught and modeled, and the articles in this month's issues have many suggestions and real-life examples of what this kind of activity looks like and sounds like in a real classroom. (I can think of a few talk show hosts who should read these, too!)

Connecting Science and Literacy Through Talk describes the benefits of whole class discussion to debrief, summarize, and reflect on learning. What the authors describe is not a "discussion" that includes interrogation by the teacher in a Q/A format, but active listening and engagement by the students (with their science notebooks). I met a teacher once who boasted that her students were so busy that they didn't have time to think. But the authors of this article would argue that "Although direct experience is crucial to inquiry, students may learn little from the hands-on experiences if they are not given adequate time to make meaning from them." This type of discussion would also be an appropriate time for teachers and students to use wait time. Use SciLinks for suggestions on other Literacy Skills.

The article More Than One Right Answer has "sentence starters' for the language of argumentation and describes a debrief discussion routine. The authors note that using routines or protocols (such as a Think-Pair-Share) can help students to focus their conversations.

If you and your colleagues have been "arguing" over the role of textbooks and trade books in learning science, the article Bringing Back Books will be relevant. Rather than a dichotomy in which students either engage in inquiry OR read books and other materials, the authors suggest that several programs of research have demonstrated how inquiry-based science experiences combined with science text can support students’ scientific understanding. Their research has demonstrated that "students who experience science through a balance of text and hands-on experiences exhibit greater growth in science knowledge than do students who participate in curriculum involving mainly hands-on inquiry experiences or mainly reading science books." It’s nice to hear that research does support the variety of planned and purposeful learning experiences that teachers use. If your students struggle with reading in science, check out some of the Reading and Writing in Science resources in SciLinks.

Reading about scientists of the past and present may inspire the scientists of the future in our classroooms. But reading biographies does not have to be a dull experience. Check out the suggestions for reading and reflecting on biographies of scientists in this month's Teaching Through Trade Books article. For additional ideas and online biographies, use "biographies" or the name of a particular scientists as a SciLinks keyword.

Having survived a few nor'easters on the mid-Atlantic coast, I was interested in How Can Wind Cause a Bridge to Collapse? I did review some background information on bridges and resonance in SciLinks.

You won't get much of an argument (but perhaps lively argumentation) if you focus on the science behind some familiar topics: pizza (Solar Pizza Friday), skateboarding (Speed Kills! Or Does It?), and Digging Soil. For the last topic, check out the selected Scilinks for Explore Soil and use the search term "soil" for even more information and teaching suggestions.
Published: Nov-16-09 | 0 Comments | 0 Links to this post

Nov11

Interdisciplinary/Integrated Science

Science Scope cover I always look forward to the NSTA journal issues that have a theme with the words integrated or interdisciplinary in them. Interdisciplinary is one of those words that is hard to define, but we "know it when we see it." The article Thinking, Teaching, and Learning Science Outside the Boxes in the February 2009 issue of The Science Teacher does provide a definition as well as a discussion of its importance and even a "taxonomy" of levels of disciplinarity (yes, I know that's not a real word!), showing that it's not an either/or dichotomy. The challenge is to make the connections authentic and purposeful, rather than contrived and trivial.

The lessons described in this issue are anything but contrived and trivial! Solving the Mystery of Mock Mummies goes beyond creating "mummies" as a arts-and-crafts activity to fact-finding on the process of mummification, a study of artifacts, observations, and inferencing. A key component is having to interpret the work of others. In addition to the online resources mentioned in the article, SciLinks has websites under the keyword "archaeology." Although they are in the 9-12 group, some of the sites would be appropriate for middle-schoolers, including Animal Mummies in the Cairo Museum, and In Vesuvius' Shadow. It would be interesting to connect these activities with an ancient history class.

My students were fascinated by amber and the insects inside, and the activities in Amber: Using "Tree Tears Turned to Stone" to Teach Biology, Ecology, and More! would certainly capitalize on that interest. (I also saw this topic as a rationale to visit jewelry stores selling amber for pieces to wear to class!). If your students are interested in more information, try Fossil Amber, Amber: Window to the Past (also recommended in the article), and Oldest Gecko Fossil Ever Found, Entombed in Amber. In Search for the Golden Moon Bear, the authors describe a Reader's Theatre project, in which students wrote and performed an original script based on a science-related book. I've seen many elementary classes use this technique to improve fluency and comprehension, but I'm excited by the idea of middle-schoolers writing and performing, especially if they can share what they're learning with a younger audience. The article has step-by-step directions, but if you need more information, check out the resources at Readers' Theater.

Helping students see the connections between science and "real life" is the theme of several articles. In Cell Towers and Songbirds, students look at the possible consequences of the technology that seems to be indispensible these days. The Global Warming Project could be adapted for high school students with the question: What is the impact of most students driving to school rather than carpooling or using the bus? And Time's Up, Turkey: Pop-up Thermometers takes a look at a technology that will be in use later this month in many homes.

Regardless of what grade level you teacher, two articles would make excellent discussion starters at faculty meetings: The Great Divide: How Mathematics Is Perceived by Students in Math and Science Classrooms shows how there may be confusion between how common concepts (such as data collecting and analysis, graphing, measurement, and unit analysis) are taught and used in science and math classes. And Physics or Stamp Collecting? Pitfalls of the Hierarchy of Disciplines is a thought-provoking article that discusses how we communicate the importance of science to students and some of the misconceptions that students may develop.
Published: Nov-11-09 | 0 Comments | 0 Links to this post

Nov05

How do you use SciLinks?

At the NSTA conference in Minneapolis, last week, I asked a number of teachers how they use SciLinks. Here's Fran Weber's response via Teacher Tube.
 

How do you use SciLinks? What could we do to make it better? Please let us know via comment to this post, or zip me a note -- tbrown@nsta.org.

--Tyson Brown

Published: Nov-05-09 | 0 Comments | 0 Links to this post

Oct28

SciLinks and Cooperative Learning

Earlier this month, I was asked to search for and upload resources on cooperative learning for SciLinks (use the keyword "community collaborations"). There were many good sites, although some were published in the 1990s (interesting but a bit outdated) and were therefore not added to SciLinks. However, I found some newer sites that would be useful as a refresher, to find some new ideas, or to get started with this effective instructional strategy

Powerful Learning: Studies Show Deep Understanding Derives from Collaborative Methods was recently published on the Edutopia website. The authors (Brigid Barron and Linda Darling-Hammond) summarize research findings and provide examples of student collaborative projects. Download their expanded article Teaching for Meaningful Learning for more information (including links to video resources) and for a list of research studies and other professional writing on the topic.

The Science Education Resource Center (SERC) at Carleton College has an excellent resource "Teaching Entry Level Geoscience." Although it's designed for teachers of undergraduate courses, the teaching strategies are applicable to younger students as well (and include descriptions of gallery walks, field labs, role-playing, teaching with Google Earth, and others). The section on Cooperative Learning has lots of suggestions on this topic.

Cooperative and Collaborative Learning is a resource from WNET Thirteen Ed Online in its Concept to Classroom project. The four parts of the site guide the user through background information and suggestions for implementation: Explanation, Demonstration, Exploration, Implementation. Throughout this site, the emphasis is on real classrooms and includes ideas for assessment and a discussion of some challenges that might be encountered. There are video clips of actual classrooms (including science classes) using cooperative learning, too.
Published: Oct-28-09 | 0 Comments | 0 Links to this post

Oct21

Science in Society

Science Teacher cover The editor makes a good point - helping students connect science to real issues can help to dispel the "why are we doing this" question.

For example, every part of the country has its real challenges from storms and other disasters (both natural and human-enhanced). Use "severe weather" as a keyword in SciLinks for some additional information and teaching suggestions. The author of Hurricane Katrina: A Teachable Moment suggests Bernoulli's Principle and Storms and Storm Surge: A "Rising" Concern Among Coastal Residents.

Students who watch a lot of "reality" television may not see many examples of constructive conversations. The authors of Socratic Seminars in Science Class show how students can discuss open-ended questions about a text--not as a free-for-all shouting match, but with a structured format for higher-level thinking and sharing of points of view. (I wonder if this could work at a faculty workshop or school board meeting?) They suggest resources such as National Paideia Center and the Ethics Primer.

Most students see the relevance of learning about the environment. Since languages other than English is the reality in many schools, look for resources such as EcoTipping Points that have a Spanish version Los Puntos de Inflexión Ecológica.

Using Issues-Based Science in the Classroom has an "inquiry continuum." Also consider the article EQUIPping Teachers in the April 2009 edition of TST for another discussion of an inquiry continuum (pre-inquiry, developing, proficient, and exemplary.

Check out the Connections for this issue. Even if the article does not quite fit with your lesson agenda, this resource has ideas for handouts, background information sheets, data sheets, rubrics, and other teaching suggestions.

Published: Oct-21-09 | 0 Comments | 0 Links to this post

Oct16

Asking Questions and Solving Problems

Science and Children cover
In the article CSI for Trees there a quote that sums up the theme of this issue: "An ordinary activity can be transformed into a lesson that includes nature of science themes simply by adding a few key statements and questions throughout a lesson." But the word simply is a little misleading. Asking the right questions (and encouraging students to ask questions) can be challenging. And the authors of the articles in this issue share many insights into how to accomplish this in elementary science.

The article How Do You Ask Effective Questions? has some suggestions. The author mentions "wait time" as a component of questioning and discussion. This strategy is often overlooked or dismissed in a quest to "cover" material, but the published research (and my own action research), indicates that it is a powerful way to increase participation and higher-level thinking. If you need a review of wait time, refer to Using Think-Time and Wait-Time Skillfully in the Classroom. (I love how the cover of this issue illustrates what happens during wait time!) More problem-finding prompts are featured in the article Problem Solving by Design

Dioramas often get a bad reputation as a project, but look at how the teacher in the article Deer Tracks in the City uses them to get young students to act out their predictions. This article also shows the value of asking questions but not necessarily following a lockstep investigation.

Check out the Connections for each issue. Even if the article does not quite fit with your lesson agenda, this resource has ideas for handouts, background information sheets, data sheets, rubrics, etc.

And remember that SciLinks can provide more ideas and background information on the topics in this issue. For example, the keyword "dendrochronology" as mentioned in CSI for Trees has several sites targeted for grades 9-12. These sites may be OK for more advanced or interested students - or for your own information.

Use the keyword "wind" for grades 5-8 for other lessons and information related to the topics in Wind Solvers. Even traditional classroom distractions such as paper airplanes can turn into opportunities for questioning, as noted in Use the keyword "wind" for grades 5-8 for other lessons and information related to the topics in Secrets of Flight.

Another aspect of problem solving is collecting and Making Sense of Data. Guiding students through this process is (to me) one of the most interesting parts of problem solving. One of my favorite websites is Create a Graph. There is also a tutorial to help you and your students match your data with an appropriate type of graph. The graphs can be saved and printed to attach into a science notebook, too.
Published: Oct-16-09 | 0 Comments | 0 Links to this post

Oct05

Chemistry

Science Scope cover What a bonanza for chemistry/physical science teachers this fall--first, the September issue of The Science Teacher (with the theme of Chemistry for a Changing World), and now the October issue of Science Scope (with the theme of Chemistry). No matter which grade level you teach, there will be ideas in both issues for advanced students and those who are novices at learning about chemistry.

Physical and chemical changes are difficult concepts for younger or less-experienced students. Check out activities with real-world applications: No More Leaks in which students explore super-absorbent polymers through an inquiry-based investigation, Korean Kimchi Chemistry which looks a chemical reactions such as fermentation, Watching the Pot to Improve Inquiry Skills (who knew that watching water boil could be so interesting!), Chemistry in Action: Triple Delight which looks at the chemistry concepts in making ice cream (but not in the lab - try the FCS kitchens), and Enhancing and Student Understanding of Physical and Chemical Changes with lots of examples for demonstrations. And if you ever wondered what inquiry-based science looks like in a classroom, the authors of Inquiry-Based Dissolving give you a peek into their classroom investigation, complete with a step-by-step description of the activity, questions, student discussions, photos and examples of student work.

How many of our students have been assigned the traditional "element report"? In the BI times (Before Internet), the main goal of this activity was to get students to find information about a particular element. This was usually accomplished in the library, using text resources. But today, with a few clicks in a browser (or better yet, a search in SciLinks with the keyword "periodic table") students can get pictures and lots of information about the characteristics and properties of any element. So finding the information is not the exercise it used to be. Why would we ask students to copy facts about an element when the information is already and readily available? Consider the activities in That Is Not Where That Element Goes or The Element Walk as alternatives. If you go to SciLinks and search for "Periodic Table," you'll get many versions of the periodic table with information on each element (which could be used to make the cards for the above activity. Some of them are downright fun. The Poetic Table of the Elements has a traditional-looking periodic table, and for each element there are poems about it But it's really fun to see what people came up with. In the Periodic Table Printmaking Project, artists created blocks for each of the elements. The descriptions of each element include some of its physical properties, but the interesting part is how and why the artists chose their designs. And I really enjoy the Periodic Table of Videos with a short video segment for each element.

Go to SciLinks for more resources to Explore Chemistry. Two of my favorites are Metals in Aqueous Solutions - a simulation that would be great if you have an interactive white board or other projection device and Biochemistry - Carbohydrates, which is part of a larger site on biochemistry with descriptions of other compounds, such as lipids, nucleic acids, proteins, and enzymes, in simple language.

As a former chemistry major, I'm really excited by these two issues!
Published: Oct-05-09 | 0 Comments | 0 Links to this post

Sep28

Bits and Pieces for September

Rather than competing with the commercial hoopla around Halloween, perhaps we science teachers could do our own special celebrations that relate to science concepts. For example, it's not too early to plan events for Mole Day, celebrated on October 23 (10/23) from 6:02 a.m. to 6:02 p.m. The timing of this event celebrates Avogadro’s number -- 6.02 * 10^23 For more information on the concept of a “mole," enter Avogadro into the SciLinks keyword search. You’ll get a list of websites related to moles and to the work of this scientist.

This day is also used to celebrate the science of chemistry and its applications. The National Mole Day Foundation’s website has background information, themes, and some suggested activities. The American Chemical Society has embedded Mole Day in its National Chemistry Week events. The ACS site has many resources for students and teachers of all grade levels.

The September issue of Learning and Leading with Technology has a product review of handheld digital field recorders to create high quality sound files.

I've read of some websites that are worth a look: Biovisions from Harvard University has video clips and animations related to biology. Learn Bird Songs includes recordings to help you identify common bird by their songs. And Tech How-To: Podcasts has suggestions for creating and hosting original podcasts.

An online conference sponsored by the Smithsonian Institution focuses on the evidence, impact, and response to climate change. It features Smithsonian scientists, curators, and collections examining the issues surrounding climate change from a variety of perspectives. The conference is scheduled for 9/29/2009-10/1/2009 and it will be archived for later use.
Published: Sep-28-09 | 0 Comments | 0 Links to this post

Sep23

Exploring Habitats

Science and Children cover What an appropriate theme for the September issue! I've often wondered why field trips are usually scheduled in the spring when the fall is such a great time to be outdoors. And activities involving plants and animals are good ways to introduce students to scientific investigation and observation at the beginning of the year. These activities range from growing plants in the classroom or the schoolyard to studying bird habitats.

If you're tired of the same old "scavenger hunt" activity, the article Forest or Field? has some good suggestions for how to make your field trip more meaningful by formulating questions to investigate, using activities prior to the trip to build background knowledge and experiences, conducting actual investigations during the trip, and analyzing data back in the classroom. I can imagine that this takes a lot of work, but I'm sure the experience is much more of a learning process than simply giving students a checklist. And your field trip can be part of your instruction, not just a social event!

When studying habitats, it's easy to focus on the plants and animals, but we can't forget the nonliving (abiotic) factors that influence the kinds of organisms that live there: elevation, types of soil, climate, rock formations, water sources, the terrain. Use SciLinks to find information on these abiotic factors to complement what students learn about the living things in a habitat.

How many of your schools are decorated with real pumpkins for the fall? The article Gourd-ous Decomposition shows you how to turn these decorations into a learning experience on plant life cycles, especially the process of decomposition.

I was excited to see so many references to SciLinks in the articles. As a summary, here are the links directly to the topics:
I always learn from each issue. For example, I had never heard of the term "thigmotropism" before reading the article How Plants Move. It's a cool-sounding word that I'll think of when I plant my tomatoes and beans next spring!
Published: Sep-23-09 | 0 Comments | 0 Links to this post

Sep16

Critical Thinking

Science Scope cover
Two items titled "Critical Thinking" are on my desktop right now: the September issue of Science Scope and an op-ed piece in the Boston Globe Critical thinking? You need knowledge. In this article, the author Diane Ravitch discusses "21st century skills" such as critical thinking and cooperative learning and suggests these are being emphasized to the exclusion of "knowledge." It's an interesting article, and the comments that have been submitted are diverse and thought-provoking, too.

One thing I looked for in the article was a definition of "critical thinking." It seems like a phrase we all use but may have different interpretations. Does the term refer to questioning, synthesizing, problem-solving, creating, reflecting, judging, evaluating? Something else? We also should consider what we mean by "knowledge" Is knowledge information from the outside that gets absorbed (memorized?) or does it also involve a deeper level of understanding that comes from making internal connections? How do we determine what information and experiences should be internalized as knowledge? Just some rambling thoughts.

I'm sure we've all had experiences in classrooms where the teacher emphasized the acquisition of facts and definitions, with few opportunities to use the information in any context. On the other hand, there are classrooms that focus on projects and activities but the students don't really understand why they are doing them. We often hear "They are having so much fun, they don't know they're learning." Maybe we should help students know that they are learning, how the activity is helping them learn, what content is important, and that learning can be enjoyable (and challenging).

But as I read the articles in Science Scope, I have the impression that these teachers use critical thinking and cooperative learning, not as isolated skills, but as ways of helping students learn science through investigations, discussion, readings, and writing. The activities they describe integrate essential content with experiences that help the students internalize and apply what they are learning in creative ways

The Internet is changing the way we locate and share information, so I'll put in a plug for SciLinks as a tool for finding relevant science content!
Published: Sep-16-09 | 0 Comments | 0 Links to this post

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