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Welcome to the Science 2.0 Blog

By Martin Horejsi

Posted on 2010-12-17

Although blogs (web logs) were once only a reverse chronological diary of thoughts and observations, today’s blogs are so much more. First of all, the vast amount of aggregatible content has brightened a once text-heavy presentation. Images, videos, graphics, links and audio tracks have made the once static blog a living document chronicling a point in time.
Second, the current blogging tools allow for a fairly rich exchange of ideas and feedback. Although we do not have the time to monitor the blog on a daily basis, we will be adding posts throughout the month, answering questions, and engaging in dialog with readers as time permits.
It is our hope that the Science 2.0 blog will expand and enrich the topics of the print article in The Science Teacher as well as provide a venue to link into the worlds of our readers. This is a two-way street and so we encourage the sharing of your wisdom by posting comments.

Although blogs (web logs) were once only a reverse chronological diary of thoughts and observations, today’s blogs are so much more. First of all, the vast amount of aggregatible content has brightened a once text-heavy presentation. Images, videos, graphics, links and audio tracks have made the once static blog a living document chronicling a point in time.

 

NSTA's Book Beat wins 2010 MarCom Award

By Claire Reinburg

Posted on 2010-12-17

NSTA’s Book Beat was honored in November 2010 with a Gold MarCom award for e-newsletters. The MarCom Awards is an international creative competition that recognizes outstanding achievement by marketing and communications professionals. Each month’s issue of Book Beat brings science teachers news of special offers in the online Science Store, the month’s list of top sellers, and free science lessons drawn from NSTA Press books.  Click here to read archived issues of Book Beat and sign up to receive your own copy in the coming months.

NSTA’s Book Beat was honored in November 2010 with a Gold MarCom award for e-newsletters. The MarCom Awards is an international creative competition that recognizes outstanding achievement by marketing and communications professionals.

 

Elements, compounds, and mixtures

By Mary Bigelow

Posted on 2010-12-17

Click here for the Table of Contents


Many students can probably recite or at least recognize definitions of elements, compounds, and mixtures. But the articles in this issue go beyond definitions and examples to show students the application of this knowledge. These activities also engage students with interesting and creative activities in a variety of formats.
One of the misconceptions my students had was that chemicals were things that you mixed together to create explosions, with vapors and odors as byproducts. But several articles in this issue demonstrate how chemical compounds are present in everyday substances that we use and take for granted. Green Beauty has descriptions of ingredients often found in cosmetics and other personal care products and potential risks they pose. At an age where students are interested in these products, examining the list of ingredients could be a relevant activity. The article also has a list of references. Thermal Paper Exposed describes an investigation of materials we take for granted. Literacy for the Digital Generation: Enabling Students to Develop 21st-Century Skills Through Real-World Chemistry also looks at common household substances as students create a blog about poisons. The author includes suggestions for blogging and a rubric. As you consider other activities involving chemicals, be sure to consider safety issues (NSTA’s SciLinks has several collections of websites related to safety, such as Chemical Handling and Safety.

It’s ELEMENTary, My Dear Watson combines a forensic investigation to show characteristics of materials such as pH, conductivity, and density. The activity also includes Google maps and science notebooks. Check out other resources for forensic science in SciLinks. (As a fan of Sherlock Holmes, I don’t think he ever used this phrase in the original stories, but the title is a clever play on words.)
No study of elements would be complete without the Periodic Table. Deal Me In: Using Playing Cards to Model the Period Table of Elements has some ideas (using the 5E model to help students to understand patterns and infer the properties of “missing” elements. The Romance of the Atoms: Animated Atomic Attractions has a new twist on the element reports that many teachers assign: cartoons created with the computer animation software Scratch from MIT, which is free and downloadable. The article has screen shots of some of the projects. (I tinkered with Scratch, and it looks like fun! And I suspect that students will catch on quickly.) SciLinks has more on the periodic table as well as collections of sites on individual elements (see Manganese, for example).
SciLinks has resources on these topics related to articles in this issue:

NSTA Recommends has a review of the book Exploratorium Science Snackbook: Cook Up Over 100 Hands-On Science Exhibits from Everyday Materials. The Exploratorium in San Francisco is a wonderful, hands-on place to explore science (if you’re going to the NSTA convention in March, put it on your list of places to visit). In addition to the book, the “snacks” are also available on Exploratorium’s Snack website.

Click here for the Table of Contents

 

Online communities

By Teshia Birts, CAE

Posted on 2010-12-16

As NSTA expands its efforts to develop Communities of Practice—particularly with its web presence—I thought I would share a few tips on how chapter or associated group leaders can engage and foster communication online.
If your chapter or associated group has an online community (using public networks like Facebook or Twitter or custom built systems) all of your work will be in vain unless your members and other constituents join the community and contribute to the discussion.
Here are a few tips from one of my fellow association executive colleagues, Paul Schneider:

  1. Use expert bloggers.  Someone in the industry who may be willing to post blogs weekly or monthly (maybe with some incentive like free membership or a small stipend).
  2. Ask a question about a hot topic. Everyone likes to offer their opinion and that generates conversation!
  3. Post a survey… And have the results available to participants in the community.
  4. What’s on the horizon? Send regular reminders about activities coming up soon.
  5. Feature a “Member of the Week.” Highlight that person’s accomplishments in science education.
  6. Staff blogs. If your organization has an executive staff person, have them provide a weekly blog highlighting their activities.

Above all else, the most important factor is that there is a full commitment to building these communities from your association’s leadership and those running the day-to-day operations.
Does your chapter or associated group have an online community?  Leave a comment and let us know how it’s going!

As NSTA expands its efforts to develop Communities of Practice—particularly with its web presence—I thought I would share a few tips on how chapter or associated group leaders can engage and foster communication online.
If your chapter or associated group has an online community (using public networks like Facebook or Twitter or custom built systems) all of your work will be in vain unless your members and other constituents join the community and contribute to the discussion.

 

Exploring sound and music as part of science learning

By Peggy Ashbrook

Posted on 2010-12-15

Children feeling the vibration made by a music triangle when struck.Exploring how sound is made is one way music is used in early childhood classrooms. I like to use a triangle to focus children’s attention on the tiny movement that generates the sound. They touch the still triangle and then remove their hand. I strike the triangle to make the sound and they touch it again (and shiver or giggle as the vibration tickles their fingers).

Next we pass the triangle and striker around the circle and one child holds the triangle while the other uses the striker. This way no one person can monopolize the equipment and we all get to feel the vibrations again. Sometimes in passing the triangle a child will hold the side of the instrument rather than the string and the resulting “thunk” (rather than a musical note) opens a discussion of how to change sounds.
Early childhood advocate and musician Miss Jackie lists many other reasons for using music in her November 11, 2010, blog posting, Music belongs in early childhood classrooms:

  • Encourages taking turns. Partner songs and playing instruments teach sharing and respect for others.
  • Builds self confidence. Singing songs and doing actions give children a feeling of power and control. These feelings of self esteem transfer to other aspects of life.
  • Builds friendships. Group interaction is a positive way to develop relationships.
  • Develops coordination. Actions with songs and movement are important for large and small muscle growth.
  • Develops rhythm. Rhythm is necessary for understanding ourselves and the world.
  • Inspires imagination. Music encourages children to use their imagination.
  • Develops concentration and ability to focus. Memorizing words, listening for certain sounds are all part of this experience.

The skills of taking turns, building friendships, and ability to focus all contribute to learning science concepts. I use songs passed on to me by other teachers for transitions—to clean up or to gather the children in a circle for group time. “Take a seat on the floor, take a seat on the floor, all my friends come and take a seat on the floor. Not on the ceiling, not on the door, all my friends come and take a seat on the floor.” After a few weeks I do not sing the words “ceiling” and “door” but just point to them while the children sing. This transition song is effective because the humor and small act of participating helps them disengage from their previous activities. (In the best tradition of folk music, the tune I learned is not “Shortening Bread” as most online sites report, but has changed a bit.) See online versions of this song at:  www.songsforteaching.com/b/everybodyhaveaseat.htm and
http://www.preschooleducation.com/stransition.shtml
Where does music fit into your science teaching?
Peggy

Children feeling the vibration made by a music triangle when struck.Exploring how sound is made is one way music is used in early childhood classrooms. I like to use a triangle to focus children’s attention on the tiny movement that generates the sound. They touch the still triangle and then remove their hand.

 

What can a new teacher contribute?

By Mary Bigelow

Posted on 2010-12-14

My principal recently invited me to serve on the school improvement committee; both my mentor and the high school science department chair have urged me to accept. I’m just in my second year of teaching, so I’m not sure I would have anything to offer.
—Joseph, Columbia, South Carolina
Participating in a school-wide committee could be great opportunity for you to grow as a professional and develop as a teacher-leader. You can learn more about how science education fits into larger issues such as initiatives in other departments, school district policies, or state mandates. You’ll also have opportunities to work with administrators and teachers in different departments. In some schools, committee members and other teacher-leaders have priority for professional development opportunities including seminars and conferences.
What you can offer is a fresh view of situations and issues, as well as the perspective of newer teachers. You may have useful skills in technology, writing, or presenting. You can also be a voice for science teaching and learning.

You most likely would have to commit to after-school meetings, so you should consider other demands on your time (lesson planning, extracurricular activities, graduate classes, and other personal responsibilities) as you make your decision.
Assuming you accept, as the “newbie” on the committee, you would be wise to begin by observing the personal dynamics and listening to the conversations. How do the members interact with each other and with the committee chairperson? Do certain members (or the principal) dominate the conversations while others stay in the background? Are the conversations positive, focusing on identifying problems and solutions, or do the meetings become gripe sessions? How do the members react to different ideas or suggestions? Who are the thoughtful, reflective members? Who seems most resistant to change?
You can also use your status as new kid on the block to ask questions during the meetings: Why do we…? What would happen if…? Have we ever tried…? What is the purpose of …? If you get responses such as “We’ve always done things this way” or “We tried that years ago, and it didn’t work,” ask for clarification if necessary. I’ve been in meetings where these questions have lead to interesting discussions. Sometimes the discussions lead to changes in school practices; other times, the discussions centered on valid reasons for keeping a practice. Asking the right questions can be just as much of a contribution as having the answers.
It’s also important for science to be represented during discussions on curriculum development, scheduling, assessments, grading, professional development, budgeting, and strategic planning. You can provide background information on the importance of inquiry, safety concerns, laboratory space and storage requirements, technology issues, or problems faced by “floating” science teachers and their students.
Some veteran teachers may question your presence based on your experience level. I suspect, though, that others may be delighted that a newer member of the faculty is willing to become involved. Your principal, mentor, and department chair apparently see your potential for leadership.
Photo: http://www.flickr.com/photos/dsbrennan/4222955364/

My principal recently invited me to serve on the school improvement committee; both my mentor and the high school science department chair have urged me to accept. I’m just in my second year of teaching, so I’m not sure I would have anything to offer.
—Joseph, Columbia, South Carolina

 

Posing investigable questions

By Mary Bigelow

Posted on 2010-12-12

S&C Cover

Click here for the Table of Contents


In the classroom, we are often so focused on answers that we forget to ask the right questions. The teacher is often the one asking questions, but in this issue the theme is on helping students to ask questions that can be the basis for inquiry-based investigations.
In many workshops that I’ve done, I’ve given teachers a brief, relevant article and asked them to highlight 3-4 sentences that resonate with them—that are worth remembering or discussing. In the guest editorial Sparks That Ignite Inquiry, I would have highlighted these (which ones work for you?):

  • Teachers are powerful models if they demonstrate what they ask students to do.
  • Teachers can increase the likelihood that students will ask investigable questions by providing hands-on experiences using provocative materials.
  • It is sometimes difficult for teachers to enable students to think for themselves because a pervasive philosophy underpinning much of American education is that school experiences should pass on knowledge that has already been learned.
  • Learning is a lifelong set of experiences—throughout most of our lives we do not have a teacher to guide us. Successful adults have confidence in their own ability to ask questions and to further their knowledge through various means of inquiry.

I heard a teacher say once that her ninth-grade students weren’t mature enough for inquiry learning. I hope she looks at the articles in this issue that show how younger students are indeed capable of asking investigable questions, given guidance and scaffolding by the teacher. Thought-Provoking Questions has sample lessons (for K-3 and 4-6) on generating questions. Ready…Set…Go has a lesson idea in which 4th graders learned about testable questions in an active, game-like setting.
Children ask lots of questions already, so even kindergarten students can be part of the process, too.

Investigable Questions includes a lesson that shows how to turn the traditional growing-beans-in-a-cup into a fair-test investigation. Curiosity + Kindergarten = Future Scientists shows how even something as simple as an egg can be used to stimulate curiosity when the teacher responds to a question, not with an answer, but with “How can we find out?”
I think a lot of confusion results from not having a common language or definitions during a discussion. Attending a Science Institute describes how teachers differentiated between investigable questions and “I wonder” questions. There is also a discussion of how to help students learn to ask investigable questions: from giving examples to selecting one from a list of 3-4 to creating their own. “Hypothesis” is another word with many interpretations (I grit my teeth when I hear that it’s an “educated guess.”) To Hypothesize or Not discusses what a hypothesis is (and is not). It has a probe that can be used to assess your students’ (and your own) knowledge of hypotheses. I’d recommend this article and probe (a downloadable version is available) for teachers of any grade level.
A Quest to Improve describes similar categories of questions: philosophical questions that cannot be answered by science, questions regarding facts (names, size, definitions), and complex questions that need tweaking or fine-tuning in order to be investigable. The author describes and provides examples of investigable questions: descriptive, relational, and cause-effect. Also included are suggestions for science notebooks and a checklist for evaluating questions.
Personalized Inquiry describes classifying questions into three categories, based on how they might be answered: observational studies, experimentation, or finding the answers in the literature. A fourth category is for questions than cannot be answered scientifically. (Note: for questions literature-based questions, the websites in SciLinks could be useful to recommend to students.) The author includes examples of each and a set of lessons on generating questions. The “personalized” in the title refers to the fact that each student contributes a question to the list.


Current events in children’s lives can lead to investigable questions, too. In Learning from the Oil Spill, the author describes a three-week unit in which students investigate oil spills and cleanup methods. She provides a sample lesson to address the question: How can oil from a disastrous spill be contained and removed effectively from a large body of water? During the time of the spill, there were many online resources and updates to help students understand the impact of the situation. The recently announced Online Clearinghouse for Education And Networking – Oil Interdisciplinary Learning (OCEAN-OIL) is just that – a collection of reviewed images, articles, and other content. If you’d like to compare the 2010 spill to a previous one, NOAA has created a comprehensive look at the Exxon Valdez spill in Prince William’s Oily Mess This site is designed as a classroom resource with lesson plans, inquiry activities in a real-world context, photographs, readings, and interviews with scientists.
What Causes Things to Rust? has background information on the process. It’s a good introduction to Picture This!, which describes how first-graders use digital cameras to collect data to form questions and to investigate their questions.
SciLinks connections for content topics mentioned in the articles:

And check out more Connections for this issue. Even if the article does not quite fit with your lesson agenda, there are ideas for handouts, background information sheets, data sheets, rubrics, and other resources.

S&C Cover

Click here for the Table of Contents

 

NSTA responds to PISA results

By NSTA Web Director

Posted on 2010-12-08

NSTA has released the following statement regarding the results of the 2009 Program for International Student Assessment Report (PISA):

The National Science Teachers Association is cautiously optimistic and somewhat surprised in the results for Science in the PISA Report. We are cautiously optimistic in that average science scores are up from 2006; however, this growth only puts the U.S. from the lower middle to the middle of the pack. We are still behind 18 countries and only 29 percent of students tested showed proficiency in science.
We are surprised at the scores because a very limited investment has been made on a national level in training and retaining science teachers. We believe that test scores for our students could be significantly improved if schools, states, and the federal government would commit to a larger investment in science teaching and learning.
As this report shows, our international neighbors are making the investment in science education. Our ability as a nation to remain competitive with other countries is dependent on how well we educate our children in science and mathematics. We hope this report will generate more public discussion about the need to make the necessary investments in science education.

NSTA has released the following statement regarding the results of the 2009 Program for International Student Assessment Report (PISA):

 

When your students don't know what to do …

By Mary Bigelow

Posted on 2010-12-01

At the beginning of the year, I covered measurement, basic equipment, and other fundamentals I thought my students (seventh graders) needed before we started our labs. Now they seem to have forgotten everything and need to be taught this information again whenever we do a lab. What can I do to help them remember?
—Diane, Las Cruces, New Mexico
The first textbook I used had a chapter devoted to the metric system, so I dutifully “covered” it at the beginning of the year, with its emphasis on converting units. Following the advice of a colleague, I also had the students memorize the names of equipment (flasks, graduated cylinders, forceps, and so on) before they had a chance to use them. What a disaster! When it was time to use these concepts, skills, and vocabulary in subsequent lab activities, my middle-school students remembered little of what they had supposedly learned.
As I reflected on this, I realized I had expected the students to master these concepts and vocabulary without any meaningful context. It seemed difficult for them to apply procedures that had been introduced at the beginning of the year to a lab weeks later. I was certainly teaching the material (with the lesson plans to prove it), and the students seemed to know the material at the time—but they weren’t learning it well enough to apply it to new activities.
So I changed my approach.

I introduced lab-related concepts, procedures, and vocabulary on an as-needed basis within the context of investigations, rather than in isolated units of instruction. For example, the students learned how to use microscopes in the context of a unit on microbiology. They practiced focusing microscopes while examining prepared slides of cells. They made their own wet mount slides of algae, yeasts, and molds. They examined pond water and recorded their observations and inferences.
This worked well, but we still want students to connect what they learn to their previous experience and to transfer what they learn to new situations. When students are learning new lab procedures, you could have them create their own frequently asked questions, or FAQs. They could designate a section of their science notebooks for FAQs such as How do I use a balance? How do I make a wet mount microscope slide? What should I use to measure the volume of a liquid? What is the difference between an observation and an inference? The question is followed by a brief, step-by-step response or definition, including diagrams or pictures. Each student would be responsible for adding questions to his or her notebook. If the notebooks have a “glossary” section, students could add descriptions and sketches of equipment as they use it. This becomes a reference to use during a lab.
A variation is to provide index cards on which students write the questions. Punch a hole in the card and add it to a ring with other cards or to a binder. Keep a set at each lab station, and allow students to add to the set as the year progresses. There could also be cards on which students write names and draw diagrams of the equipment and materials they use (e.g., a glassware card) for future reference. During a lab, students can flip through the cards if they have questions (you may need to model this strategy for the students to help them become more self-sufficient).
You could make the cards, but it would be more meaningful if the students make the cards themselves and use their own words in the responses. Perhaps creating the cards could be one of the roles you assign in cooperative groups or at the end of a unit as a review. Each class period could add to the set, and the students can learn from each other’s questions. At the end of the year, you could give the card sets to the eighth grade teacher for the students to continue to use.
Photo: http://www.flickr.com/photos/jkfid/4333769080/in/photostream/

At the beginning of the year, I covered measurement, basic equipment, and other fundamentals I thought my students (seventh graders) needed before we started our labs. Now they seem to have forgotten everything and need to be taught this information again whenever we do a lab. What can I do to help them remember?
—Diane, Las Cruces, New Mexico

 

Shanghai video diary

By NSTA Web Director

Posted on 2010-11-29

William D. Greene of West Virginia participated in the recent Sino-US Science and Education Forum and has posted this video:
[youtube]http://www.youtube.com/watch?v=PV3xlBynU6M[/youtube]
Click on the tag below to see more blog posts on this subject.

William D. Greene of West Virginia participated in the recent Sino-US Science and Education Forum and has posted this video:
[youtube]http://www.youtube.com/watch?v=PV3xlBynU6M[/youtube]
Click on the tag below to see more blog posts on this subject.

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