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Another Fall event – Mole Day

By Mary Bigelow

Posted on 2007-10-17

In a previous entry on fall activities, I forgot to include 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” (in a chemical context, not the mammal!), login to SciLinks, and enter “Avogadro” into the keyword search. You’ll get a list of websites related to moles and to the work of this scientist.
This day is 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.
Rather than competing with the commercial hoopla around Halloween, perhaps we science teachers could do our own special celebrations that relate to science concepts! I’ve also heard of teachers who reverse the numbers and celebrate their mole day on June 2 (6/02) at 10:23 a.m. This could be a neat end of the year wrap-up!
According to several sources, this event was inspired by an article in NSTA’s The Science Teacher from the 1980s, but these sources do not mention the title of the article. Unfortunately, the online archives for this journal do not go back that far to get the original article, and I’ve recycled my journal copies from the 80s and 90s. Does anyone have the title and author of the article?

In a previous entry on fall activities, I forgot to include 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” (in a chemical context, not the mammal!), login to SciLinks, and enter “Avogadro” into the keyword search. You’ll get a list of websites related to moles and to the work of this scientist.

 

Mathematics integration

By Mary Bigelow

Posted on 2007-10-15

Science and Children cover, October 2007This is the theme of the October Science and Children. Whether you’re an elementary or secondary teacher, be sure to check out this issue online (just click on the photo) for some discussions on the relationship between science and mathematics and some activities that can certainly be adapted for science students, regardless of their ages.

The articles on graphing do not have any SciLinks codes, so I’ll mention one of my favorites! Create a Graph is a tool that helps students create graphs from their data. There is a tutorial on types of graphs and how to choose the appropriate one for the given task. To make the graph, you enter the title of the graph, labels for the variables or categories, and the actual data. You can even select the colors and fonts! After seeing the graph, you can print it or save it in several graphic formats. The neat part is that you can email it to yourself and receive a link so that you can go back to the site and edit the graph later! This is a user-friendly, online alternative to more complex graphing programs.
I’m currently working with a project that is teaming university science professors with K-12 teachers (mostly at the K-8 levels). One of the physics professors was working with the teachers on graphing the data from their wind energy investigations. He described graphing as another way of telling a story. After he modeled the process, he showed them a graph and they had to brainstorm possible stories. They came up with some interesting ones! It was an effective way to demonstrate the value of graphs as a means of communicating information and events (stories).
The students in the article “Making ‘Photo’ Graphs” (scroll down to the article link) told a story about plant growth with their graphs. Nice work, and they’re third-graders!

Science and Children cover, October 2007This is the theme of the October Science and Children.
 

From cyberspace to SciLinks: website interactivity

By Mary Bigelow

Posted on 2007-10-07

It took me a while to get used to this part of the rubric. When I first became involved with software design back in the 1980s (yes, light years ago!), “interactivity” meant that the user could explore the program (there were no websites then) by clicking on buttons or links and using the program in a nonlinear fashion. The buttons led to other screens, additional information, graphics, etc.
In the SciLinks of the 2000s, the concept of interactivity has a tighter focus, beyond pointing and clicking on topics. Many sites are wonderful sources of information with interesting text and graphics, but some do go beyond this to include these interactive functions:
Quizzes Some sites have online quizzes that provide feedback specific to the user’s response in a quiz format, usually multiple choice. Quite frankly, I’d prefer that site developers skip this feature rather than include a poorly designed or trivial quiz. I’d ask whether the quiz helps the user to review the content. I look carefully at what happens if the user is incorrect — sound effects or sarcastic comments are not helpful to the student. Ideally, the site should direct the user to a section in which the topic is discussed further or to an explanation as to why a response was correct or incorrect. Some sites add up and display the number of items correct. Plant Parts Salad reviews the parts of vascular plants.
The Life Cycle of a Moss tutorial finishes with a brief quiz.
Simulations These are often animations depicting a real situation. Or they can include graphics that resemble a sort of calculator. In any case, the user does more than simply start and stop an animation or video. The user manipulates objects or enters values for variables, and feedback is provided in terms of calculations or further animations showing the results. For example, the site Harmonic Motion uses descriptive animations, followed by simple simulations in which the user can change speed, force, and/or other variables.
Datasets Although SciLinks sites can be a rich source of information, true datasets are not very common in SciLinks sites. These datasets are more than just lists of facts or graphics. The user can manipulate, search, sort, copy/paste, or export data. Earthquake Center has a wealth of current data on seismic activity and a list of recent and historic earthquakes with descriptions, maps, and graphics.
I’ve used some of these interactive sites with students, displaying the sites on a screen (or SmartBoard), especially the simulations. Working in groups, the students come up with how they want to change the variables. It’s interesting to ask for their predictions as to what will happen. If your favorite interactive site is not in SciLinks yet, send the URL!

It took me a while to get used to this part of the rubric. When I first became involved with software design back in the 1980s (yes, light years ago!), “interactivity” meant that the user could explore the program (there were no websites then) by clicking on buttons or links and using the program in a nonlinear fashion. The buttons led to other screens, additional information, graphics, etc.

Just as science education doesn’t stop at the schoolhouse door, neither should effective application of the National Science Education Standards. Exemplary Science in Informal Education Settings shows real-world examples of how science education reform has taken hold in museums, science centers, zoos, and aquariums as well as on television, radio, and the internet.
Just as science education doesn’t stop at the schoolhouse door, neither should effective application of the National Science Education Standards. Exemplary Science in Informal Education Settings shows real-world examples of how science education reform has taken hold in museums, science centers, zoos, and aquariums as well as on television, radio, and the internet.

Exemplary Science in Informal Education Settings: Standards-Based Success Stories

Just as science education doesn’t stop at the schoolhouse door, neither should effective application of the National Science Education Standards. Exemplary Science in Informal Education Settings shows real-world examples of how science education reform has taken hold in museums, science centers, zoos, and aquariums as well as on television, radio, and the internet.

Just as science education doesn’t stop at the schoolhouse door, neither should effective application of the National Science Education Standards. Exemplary Science in Informal Education Settings shows real-world examples of how science education reform has taken hold in museums, science centers, zoos, and aquariums as well as on television, radio, and the internet.

 

"Fall" into SciLinks

By Mary Bigelow

Posted on 2007-10-01

It’s October already–the air is getting a little cooler, the leaves are changing color, and the number of daylight hours is decreasing. Some birds have left for their winter homes, and others are arriving or passing through. And, of course, the World Series is just around the corner and football season is underway!
What a great time of year to be a science teacher! There are so many opportunities to connect science with these events, and SciLinks has lots of websites that can help to make these connections. I searched the database to come up with a few examples:
Leaves
What Tree Is It? is a dichotomous key that is easy to use at any age.
This lesson at Look at Those Leaves will have students observe, measure, and sort tree leaves along with examining leaves individually, in groups, and in relationship to the entire tree.
How Leaves Change Color describes the reasons behind the beautiful fall foliage.
Seasons
Astronomy with a Stick is an online project to help your students understand how the positions of the sun and the earth affect the daylight hours. Free registration allows your class to interact with other classes worldwide! The directions say for students to use newspapers to get the time of sunrise each day, but the U.S. Naval Observatory’s website lets you enter a location and date to get this information!
What Causes the Seasons? has many diagrams to explain the reasons for the seasons.
The fall was my favorite time to do a comparison study of trees and leaves and to explore the effects of temperature on the behavior of living things. What other investigations are your favorites for the fall?

It’s October already–the air is getting a little cooler, the leaves are changing color, and the number of daylight hours is decreasing. Some birds have left for their winter homes, and others are arriving or passing through. And, of course, the World Series is just around the corner and football season is underway!
What a great time of year to be a science teacher! There are so many opportunities to connect science with these events, and SciLinks has lots of websites that can help to make these connections. I searched the database to come up with a few examples:

 

Getting the Most out of Electrophoresis Units

The Science Teacher—October 2007

At Oklahoma City Community College, they have developed gel electrophoresis activities that support active learning of many scientific concepts, including: pH, electrolysis, oxidation reduction, electrical currents, potentials, conductivity, molarity, gel electrophoresis, DNA and protein separation, and DNA fingerprinting. This article presents six different ways that electrophoresis can be used to help students learn multiple science concepts.
At Oklahoma City Community College, they have developed gel electrophoresis activities that support active learning of many scientific concepts, including: pH, electrolysis, oxidation reduction, electrical currents, potentials, conductivity, molarity, gel electrophoresis, DNA and protein separation, and DNA fingerprinting. This article presents six different ways that electrophoresis can be used to help students learn multiple science concepts.
At Oklahoma City Community College, they have developed gel electrophoresis activities that support active learning of many scientific concepts, including: pH, electrolysis, oxidation reduction, electrical currents, potentials, conductivity, molarity, gel electrophoresis, DNA and protein separation, and DNA fingerprinting. This article presents six different ways that electrophoresis can be used to help students learn multiple science concepts.
 

September publications and SciLinks

By Mary Bigelow

Posted on 2007-09-08

Each month, I’ll mention some sites that relate to that month’s themes of the three K-12 NSTA journals. These are sites that illustrate what I think is a good use of the technology.
Science and Children – Animals – I’d certainly like to show younger students that there are many interesting animals in addition to the dinosaurs!
History and Biology of the Horseshoe Crab
This site shows how a clean design and chunking of the text and other features work together in to create a user-friendly site. This is appropriate for younger students, but older ones will find the information interesting as well. I spend a great deal of time on the Delaware beaches and my community is a horseshoe crab sanctuary – and yet I learned a lot from this site myself!
Classifying Critters
Anything from the Howard Hughes Medical Institute is a quality site, in my experience! This is part of a really nice site for younger students on using physical characteristics to classify animals, and one I might use with the whole class. This could lead to interesting discussions.
Critter Guide
I like this one for older elementary or middle school students, in that it is a very browseable, searchable site with interesting pictures and information that is well organized. (My one criticism would be the use of Marine Life as a category, when the other categories are based on physical characteristics).
Science Scope – Reading – This is an area of professional interest to me. Reading in the science classroom was the focus of my graduate work, and I loved being able to help students learn how to read nonfiction, such as science textbooks and magazine articles (and now websites) in my classes.
Building Big
I was impressed at how this site combines text and graphics in a browseable format that lets the user pursue topics of interest. But the Build-a-Bridge feature focuses on using what has been read to create structures in an interactive segment, and the users then get feedback on their designs (and a timely topic given the issues of infrastructure after this summer’s event in Minnesota). I’ve found that most PBS sites are excellent and can be used independently of their programs.
Classroom Exploration of Oceans
These explorations have beautiful photographs and real-life stories about scientists and their studies. NOAA has an amazing number of quality sites.
Windows to the Universe
In SciLinks, there are many components of this site entered in the database separately. What appeals to me as a middle school teacher is the fact that there are three levels of text: beginner, intermediate, and advanced. Sometimes the amount of information differs from level to level, and other times the text is chunked differently. Nevertheless, the site can be personalized to the student.
The Science Teacher – Weather and Climate – I’ve just finished up monitoring a summer program that had teachers creating weather maps and learning about climate change. I hope they have access to sites such as these.
Weather
This site looks at the relationship between the oceans and weather. What I like here is the section for educators that has suggestions on how to use this site in a classroom.
Weather World 2010 Project
In SciLinks, there are many individual components of this site in the database. For me, I’d save money on meteorology textbooks and use this site instead (and channel the textbook budget into purchasing a weather station!). It’s written in an interesting style so that teachers can use it for their own background knowledge, too, or teachers can use the section on “Projects and Activities.”
Weather and Climate Basics
This is a good site to let students read about the differences between weather and climate. It’s full of really good graphics.
To see many other SciLinks sites, go to www.scilinks.org. If you’re not registered, login as a Guest to check out what’s here. Or use your NSTA member number to login, or you can register (free) as a teacher/parent.
Each month, I’ll mention some sites that relate to that month’s themes of the three K-12 NSTA journals. These are sites that illustrate what I think is a good use of the technology.
Science and Children – Animals – I’d certainly like to show younger students that there are many interesting animals in addition to the dinosaurs!
 

From cyberspace to Scilinks: content and credibility

By Mary Bigelow

Posted on 2007-09-02

How does a website become part of SciLinks? Potential topics are identified from the content of SciLinked textbooks or NSTA publications. (The SciLinks homepage has a list of textbooks). Sites are then selected from the database, or spotters are asked to search the web for potential sites. All sites in the database have been through a review process that includes a rubric.
Reviewing the Sites – Content
The vast majority of sites suggested and screened by the spotters are included in SciLinks. Some get higher ratings than others. I’ve taught classes in web design at the high school and college level, and over the years, I’ve seen improvements in design, either because we’re more design-savvy or because the technology is getting better. My personal guideline is “Would I want my students spending their time with this site?”
I certainly want our students to have access to accurate content. One of the first sites I reviewed noted that “the tide comes in in the morning and goes out at night.” Needless to say, this site did not make it into SciLinks! But the SciLinks spotters are good at filtering out sites with incorrect information.
I also want our students to have access to interesting and meaningful content. In my state, the reading tests show weaknesses in reading and interpreting nonfiction or informational text (aka “expository text”) at all grade levels. Here is where SciLinks can provide a wealth of good content reading. However, one of my concerns is with sites geared to younger students. I think sometimes that we adults don’t quite get it. Some sites are designed to be cute, with dancing earthworms and talking spiders. The research on reading shows that students have an interest in nonfiction, so why do site developers continue to decorate their sites with cartoonish graphics (rather than photographs or accurate drawings) or try to be “with-it” by using teenage slang, which becomes outdated very quickly? Another component of many sites for younger learners is the “fun” link that often leads to coloring pages, mazes, or find-a-word puzzles. In an era when the time for science classes is shrinking to accommodate more time for reading and math, I don’t think I would use precious class time for activities that have little science in them. Not that these wouldn’t be perhaps OK for indoor recess or take-home packets (not graded homework, though), but even then, there are so many other activities that are both enjoyable and meaningful (and now I’m off my personal soapbox!).
The SciLinks sites also provide a way to extend what is in your textbook for interested students. One criticism of American science textbooks is that they do not treat topics in depth. The SciLinks websites can supplement textbook topics with additional information and features such as animations, graphics, and video clips. Sometimes the sites reiterate basic textbook information. I think that’s OK – some students may need to see the information displayed in a different format or with different graphics to understand. I know one elementary teacher who puts the 10-year-old textbooks on the shelf and uses nonfiction trade books and web resources to implement the school’s science curriculum!
Many of the sites have links for teacher resources. These include suggestions for incorporating the site into science lessons, hands-on activities, and inquiry learning. The sites also are correlated to the National Science Education Standards (NSES). Although the states have their own lists of standards, most are reflected in the NSES, perhaps in different terminology.
Each month in this blog, I’ll describe a few components of the rubric we use to evaluate the sites.
Reviewing the Sites – Credibility
Assuming that the content of the site seems correct, the site moves to the review process with its rubric. Two of the categories deal with the credibility of the site. The reviewers look at a site’s “Authority.” In general, sites from colleges and universities (and their professors), scientific and environmental agencies (including NOAA, NASA, USGS), other research agencies, museums and libraries, and zoological parks and botanical gardens rate high in this category. Some commercial sites are free of sales pitches and are very good; those that are basically commercials or sales pitches for products or services are not included. Personal sites probably do not rate as high, unless the author notes his or her credentials and includes sources with the site.
Having a way to contact the site developer via e-mail is part of the “Collaboration” category. Giving users the opportunity to contact the author with questions or feedback adds to the site’s credibility. Another form of collaboration occurs when the site fosters communication and dialog between users (to date, this has not been very common).
I’m not sure we have a decision on whether to include articles from wikis, blogs, or YouTube. I know there are teachers that discourage students from using these as formal sources of information, especially if they cite no sources for the information. Any thoughts?
No matter how reputable the site’s author, the design of the site is what captures our attention. I’ll describe this part of the rubric next month.

How does a website become part of SciLinks? Potential topics are identified from the content of SciLinked textbooks or NSTA publications. (The SciLinks homepage has a list of textbooks). Sites are then selected from the database, or spotters are asked to search the web for potential sites. All sites in the database have been through a review process that includes a rubric.
Reviewing the Sites – Content

NSTA Guide to Planning School Science Facilities, Second Edition

Science-learning spaces are different from general-purpose classrooms. So if your school is planning to build or renovate, you need the fully updated NSTA Guide to Planning School Science Facilities. It’s the definitive resource for every K-12 school that seeks safe, effective science space without costly, time-consuming mistakes.

Science-learning spaces are different from general-purpose classrooms. So if your school is planning to build or renovate, you need the fully updated NSTA Guide to Planning School Science Facilities. It’s the definitive resource for every K-12 school that seeks safe, effective science space without costly, time-consuming mistakes.

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