Previous   440-460 of 2696    Next

2696 science results | sort by:

Share    return to subject listing
Less
More

The Gene Scene - American Museum of Natural History

Grades
3 to 8
2 Favorites 0  Comments
 
The Gene Scene offers a vivid and creative way to explore genetics. The site provides interesting facts, interactive games, activities, and information about DNA, cloning, and more....more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

The Gene Scene offers a vivid and creative way to explore genetics. The site provides interesting facts, interactive games, activities, and information about DNA, cloning, and more. Have you ever been on a Global Grocery Excursion? Students can do this in their cupboards at home or at their local grocery store. Using the Ology questionnaire, plan a genetic journey about curled tongues and wiggly ears.

In the Classroom

Assign students to explore a section and complete the genetic journey then use the computers to organize data and graph their D.N.A. findings. Use an interactive whiteboard or projector to share and compare findings.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Rubric Gallery - RCampus

Grades
K to 12
3 Favorites 0  Comments
This site contains links to many different sources for rubrics. You can search by grade level, subject, or type making it easier to find an appropriate rubric. ...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

This site contains links to many different sources for rubrics. You can search by grade level, subject, or type making it easier to find an appropriate rubric.

In the Classroom

Use this site to search for rubrics for any type of assignment or classroom use. Material isn't limited to academic use, it also includes attendance, homework, and other types of rubrics.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Images from Nasa - NASA

Grades
2 to 12
0 Favorites 0  Comments
This is a nicely indexed, searchable collection of NASA photos whose topics range from aeronautics to space, the planets, and beyond. Most are copyright-free, since they were created...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

This is a nicely indexed, searchable collection of NASA photos whose topics range from aeronautics to space, the planets, and beyond. Most are copyright-free, since they were created for government use. While some image sizes are quite large, this could be a wonderful resource for creating web projects, student use, or other space and astronomy applications.

In the Classroom

Use the images on this site to create a visual discovery activity in your classroom, introducing the topic of Solar Flares, or another outer space related topic. Select 3-5 images from this site, choosing the most powerful and moving images. Placing the images on individual slides, allow students 1-2 minutes to observe each image. During that time period, students should be taking notes based on what they observe, predict and infer about each image. The more powerful and detailed the image is, the more information students can take out. After the class has observed all the chosen images, have a class discussion based on the notes students took. This is a great way to introduce content in a way that engages and gets students thinking, as well as avoiding the typical lecture format.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Nutrition Explorations - National Dairy Council

Grades
2 to 12
2 Favorites 0  Comments
 
Find activities, nutritional information, recipes, physical activity ideas, and more at this colorful and interactive site. Click on "Nutrition" to tour the food groups, learn how much...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

Find activities, nutritional information, recipes, physical activity ideas, and more at this colorful and interactive site. Click on "Nutrition" to tour the food groups, learn how much you should eat, and more. At the "Activities" link you will find several action packed "nutrition" interactives. Don't miss the "Kids Kitchen" to find some excellent (healthy) recipes.

In the Classroom

Allow students to try the activities and collect the information learned for discussion in class. Create conventional or multimedia posters about nutritional facts that others may not be aware of. Use an online bulletin board, such as Padlet, reviewed here, or interactive magazine creator like Calameo, reviewed here. Analyze current diets of students with what is recommended. Analyze commercials for foods for truth and untruth to learn to make good choices. Set goals for a nutrition campaign in your classroom.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Storms and Other Weather - University Corporation for Atmospheric Research

Grades
3 to 6
0 Favorites 0  Comments
 
Learn about clouds, hurricanes, thunderstorms, and blizzards with this kid-friendly weather site. Each weather phenomenon is presented with easy-to-understand text, interactive activities,...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

Learn about clouds, hurricanes, thunderstorms, and blizzards with this kid-friendly weather site. Each weather phenomenon is presented with easy-to-understand text, interactive activities, and graphics. Includes a glossary of weather terms and teacher tips for incorporating the content into your science classroom. Aligned to National Science Education standards.

In the Classroom

To introduce your students to this resource, use your whiteboard or projector to highlight important phrases and keywords with Kami, reviewed here. Then use Padlett, reviewed here, to create a chart for students to store those key ideas. Use the top menu bar to find enjoyable, interactive activities and games for your students.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Penguins

Grades
1 to 3
0 Favorites 0  Comments
This kid-friendly site is filled with penguin facts, photographs, and activities. Primary students can learn about the aquatic birds - their appearance, life cycle, and various species...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

This kid-friendly site is filled with penguin facts, photographs, and activities. Primary students can learn about the aquatic birds - their appearance, life cycle, and various species - as they sing songs, solve puzzles, and complete printable coloring sheets. A great site for teaching basic research skills.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

The Biography Maker - Jamie McKenzie and the Bellingham Public Schools.

Grades
4 to 12
0 Favorites 0  Comments
Writing biographies is a staple of English and history classes. This site takes students through the process in a way that will make reading them more palatable. It will also ...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

Writing biographies is a staple of English and history classes. This site takes students through the process in a way that will make reading them more palatable. It will also help students delve deeper into a person's life , making it memorable for them. Divided into four groups (Questioning, Learning, Synthesis, and Storytelling), it helps students understand how to take facts and apply them to a real live person. It wraps up with the six effective traits of writing, reminding students that biography writing shouldn't just be a recitation of facts. The "learning" section does link students to Yahoo encyclopedias and Google (with search hints included), so be aware of that feature. This site serves as a guide for writing a biography of anyone (including students themselves).

In the Classroom

All material at this site is copyrighted, so it must be viewed online. For students who do best with step-by-step instructions, this site is a gem! You might have one group research authors from a particular country while others do artists, musicians, scientists, etc. A class report from each of these groups would do a good job of encapsulating a country or area of the world within any given time period. Teachers seeking independent projects for students who "test out" of a unit can assign this site's step-by-step instructions as a meaningful alternate activity.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Common Craft - Lee Lefeever

Grades
K to 12
4 Favorites 0  Comments
  
No special skills needed. Just watch and learn. Embarrassed to say you don't know what all the "new web 2.0" terms are all about? This is for you (and probably ...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

No special skills needed. Just watch and learn. Embarrassed to say you don't know what all the "new web 2.0" terms are all about? This is for you (and probably for your students' parents, as well). Common Craft uses a very simple, visual method of explaining all the latest technologies so that everyone can understand, using short video clips narrated by a positive and respectful voice. The next time you hear someone talking about RSS feeds or some other new doo-dad, stop here first so you will know what they are talking about. Did you think you were the only one who did not know? Don't be overwhelmed. This site has incredible popularity because there are LOADS of people quietly questioning -- just like you. If your district blocks YouTube, then they may not be viewable.

In the Classroom

Start by looking at any video that catches your eye, but don't be afraid to search for other topics that have you wondering. You will definitely want to make this channel a Favorite to find information to keep you informed. Share it on your teacher web page to help out your parents, too! Create an account to add as favorites and subscribe to the channel to inform you when new videos are added.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

EasyDefine - Prabbav Jain

Grades
4 to 12
0 Favorites 0  Comments
 
Create definition lists easily and completely. Simply enter the terms, and click "generate" to create a list of words with definitions. View synonyms, download as a document, or email...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

Create definition lists easily and completely. Simply enter the terms, and click "generate" to create a list of words with definitions. View synonyms, download as a document, or email your list to others. Be aware: there are no filters on this definition site, so ANY word (appropriate or not) can easily be searched by students. Use under teacher supervision with students likely to enter inappropriate terms for immature reactions.
This site includes advertising.

In the Classroom

You must know where you are saving downloads on your computer to save the list as a document. Pay attention and name files with meaningful file names, such as "chapter17vocab." Enter your list with one term per line or separated by commas, etc. Click on advanced options to add other options to the search: number or alphabetize the definition results, maximum definitions, and hiding parts of speech.

Create definitions easily for word lists in any subject area. Have students enter a series of similar words to see variations in connotations. For example, enter various words that mean "fat" and discover the variability in positive and negative connotations. Follow up with a ranking or sorting activity with the same words on interactive whiteboard to build word choice options. Have students generate individualized reading vocabulary lists for content are reading chapters or literature. Click on the synonyms tab to find related words. Save as a document for easy sharing in groups. Advise students to collect definitions and compare to those they write in their own words. As with any other reference, students should be cautioned to be sure these are accurate definitions needed for the context in which they are studying the words.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Year by Year - Infoplease

Grades
3 to 12
1 Favorites 0  Comments
Build students' sense of historical context year by year. Help them to realize that Gershwin did not write during the Vietnam War and that World War II preceded the Beatles. ...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

Build students' sense of historical context year by year. Help them to realize that Gershwin did not write during the Vietnam War and that World War II preceded the Beatles. This site gives an overview of any year students click on from 1900 to the present, including cultural events, national and world news, politics, sports, prize winners, movie releases, deaths, and --for more recent years -- links to news focusing on other topics such as science and people. It provides an interesting summary of any particular year; most students find it interesting to check the year of their birth and those of their family members. Many highlighted keywords link to the Infoplease encyclopedia and other reference sources.

In the Classroom

Ask your students to visit the site and create a multimedia presentation from the information about any specific year they see there. Or have them compare life in two different decades. Have students create online books using a tool such as Bookemon, reviewed here. Or challenge students to create an online poster using Padlet (reviewed here).

When studying literature, point out this site as a source authors might use for cultural background information in their writing. Pick out the details while reading a novel, for example, that might be found at this site. Or before studying a historical period, use this site as an anticipatory set or "activator" on a projector or interactive whiteboard. Have students collect information tidbits and predict what might be put into the site for the current year.

Ask your ENL/ELL students to share similar information about the years they were born and the events that occurred in their home cultures. Use the site when preparing a unit on summarizing or informational paragraphs, showing the students how to select and condense relevant information from the site into a few sentences.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Blue Planet Biomes - Elisabeth Benders-Hyde

Grades
4 to 6
0 Favorites 0  Comments
This well-illustrated site introduces students to the animals, plants, and climate found throughout the earth's complex biomes. Click on "Table of Contents" to view the site's topics...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

This well-illustrated site introduces students to the animals, plants, and climate found throughout the earth's complex biomes. Click on "Table of Contents" to view the site's topics and organization. Easy navigation and clear, concise descriptions make this an ideal site for student research.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

KidRex - Kid Safe Search Engine - KidRex.org

Grades
K to 7
4 Favorites 1  Comments
KidRex is an engaging, safe search engine for students that is powered by Google Custom Search and Google SafeSearch technology. In addition to typical filters applied to searches,...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

KidRex is an engaging, safe search engine for students that is powered by Google Custom Search and Google SafeSearch technology. In addition to typical filters applied to searches, the site maintains its own database of inappropriate websites and keywords to further reduce the possibility of inappropriate search returns. The search engine is easy to use and similar to a typical Google search. You simply enter the search term and a list of sites is returned. Inappropriate search terms are returned with an "Oops, try again!" message. Before using the site, be sure to click on the Parents link for a quick overview of how the site works.
This site includes advertising.

In the Classroom

Create a link to KidRex on classroom computers for students to use as a default search engine. Use this site on your interactive whiteboard (or projector) to demonstrate how to search for items or when searching with your students.

Comments

A similar site that uses Google SafeSearch, but may be more appropriate for older kids is http://www.KidzSearch.com Daniel, CA, Grades: 0 - 12

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Sally Ride - ISS EarthKam - NASA

Grades
4 to 12
0 Favorites 0  Comments
 
Geography and earth science teachers will drool over NASA's collection of earth images made from the International Space Station. Use them to illustrate topographic formations and features,...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

Geography and earth science teachers will drool over NASA's collection of earth images made from the International Space Station. Use them to illustrate topographic formations and features, then move on to special sets that cover more specific areas. You'll need to make your own connections, but there's plenty of raw material in this one.

In the Classroom

Elementary students will likely need some guidance in using this site.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Photography - myvocabulary.com

Grades
4 to 12
0 Favorites 0  Comments
As part of their extensive site for vocabulary, roots, and more, MyVocabulary.com has added a themed area for photography. Find interactive vocabulary activities using photography vocabulary...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

As part of their extensive site for vocabulary, roots, and more, MyVocabulary.com has added a themed area for photography. Find interactive vocabulary activities using photography vocabulary words. You will also find printable crosswords, fill in the blanks and more, all using the same theme words. This and other "themes" available on the site will make vocabulary development fun.

In the Classroom

During your unit on light in science class or your study of photography, have students work in cooperative learning groups, divide up the vocabulary words, and have each group find the definitions for their assigned vocabulary words. This is a powerful way for them to master the vocabulary of photography, light, and lenses. Have the groups share their words and definitions in an online book, using a tool such as Bookemon (reviewed here). Have the groups share the online books on your interactive whiteboard or projector. And of course, don't miss the interactive word puzzles!

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Go Fly a Kite - Charlie Dunton

Grades
3 to 8
0 Favorites 0  Comments
  
This lesson plan allows the students to create a virtual kite. There are also instructions for creating actual kites. This lesson includes problem solving, basic math computations,...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

This lesson plan allows the students to create a virtual kite. There are also instructions for creating actual kites. This lesson includes problem solving, basic math computations, measuring, using a grid and more! This site also allows students to meet a professional kite builder.

In the Classroom

This is a great spring activity to reinforce math skills! If you don't have enough time to do it in class, share it on your teacher web site for students to try at home.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

LEAF - University of Wisconsin at Stevens Point

Grades
3 to 12
0 Favorites 0  Comments
 
LEAF: Learning, Experiences, and Activities in Forestry was designed to help users identify the trees by their leaves. The dichotomous identification procedure makes it easy to narrow...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

LEAF: Learning, Experiences, and Activities in Forestry was designed to help users identify the trees by their leaves. The dichotomous identification procedure makes it easy to narrow types of leaves by selecting certain characteristics. Although the site is designed for Wisconsin trees, it would be useful for any states in the same climate zone and region. Tree identification cards with color photographs in pdf format are available. A lesson plan for use with the tree identification tools available on this site is offered in both WORD and pdf format. For younger students, there is a link to a parallel, more cartoon-like kids page.

In the Classroom

Plan a hands-on tree identification activity using this site or digital pictures you take using trees in your area. The sequence for identification would work the same way. Even better: share this site on a projector and model the process, then ask your students to create their own cards and ID sequence using local digital pictures THEY take. You can then offer the "Tree ID Kits" to other teachers and classes to use.
 This resource requires PDF reader software like Adobe Acrobat.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Pics4Learning - Tech4Learning,Inc.

Grades
2 to 12
1 Favorites 0  Comments
Pics4Learning offers free, safe images for educational use. Find pictures using the search feature or by choosing from the categories listed on the home page. Download selected images...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

Pics4Learning offers free, safe images for educational use. Find pictures using the search feature or by choosing from the categories listed on the home page. Download selected images quickly using the included links to download to computers or Google Drive. Although it isn't required, each image also includes the citation for attributing work to the source.
This site includes advertising.

In the Classroom

Use images from this site with any classroom activities including research papers, blogs, and multimedia presentations. Have students create a simple infographic using images from this site using Canva Infographic Maker, reviewed here, or Venngage,reviewed here. Include images from Pics4Learning when creating screencast explanations. Use a tool like Free Screen Recorder Online, reviewed here.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

ERIC - Educational Resources Information Center - ERIC

Grades
1 to 12
0 Favorites 0  Comments
 
The most recent version of the Educational Resources Information Center provides a single-point reference to the various ERIC resource databases and clearinghouses. This bibliographic...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

The most recent version of the Educational Resources Information Center provides a single-point reference to the various ERIC resource databases and clearinghouses. This bibliographic information is intended for teachers, administrators, and researchers seeking education-related materials. This updated site contains links to the full-text of articles where available.

In the Classroom

Share this great resource with your teaching collegues by including it on your teacher web page.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

Biokids - University of Michigan

Grades
4 to 8
2 Favorites 0  Comments
  
Inquire about a variety of diverse species with this fantastic site. View the critter catalog of animals found primarily in Michigan. Use the field guides to identify common tracks,...more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

Inquire about a variety of diverse species with this fantastic site. View the critter catalog of animals found primarily in Michigan. Use the field guides to identify common tracks, identify invertebrates, and learn about habitats and conservation. Download resources for setting up experiments and analyzing data about biodiversity as well as curriculum resources. This site requires Adobe acrobat. Get it from the TeachersFirst Toolbox page.

In the Classroom

Create your own biodiversity experiments or analyze data using the downloaded documents. Learn about organisms from the State of Michigan and find organisms from your area that fill the same niche. Compare and contrast these animals to find commonalities in the food chain and learn about the different habitats that organisms can be found in. Use an online Venn diagram tool to make your comparisons. Use an online tool such as Interactive Two Circle Venn Diagram (reviewed here).
 This resource requires PDF reader software like Adobe Acrobat.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Less
More

The Internet Bird Collection - Handbook of the Birds of the World

Grades
K to 12
1 Favorites 0  Comments
 
This website is appropriate for any grade level interested in learning about birds. The Internet Bird Collection includes many "real life" videos, reference information, and much more....more
Here is the direct link to share this resource review. Feel free to copy and paste this URL into an email or place it on your web page or blog so others can read this TeachersFirst review:

 Close Link

This website is appropriate for any grade level interested in learning about birds. The Internet Bird Collection includes many "real life" videos, reference information, and much more. Fly on over and enjoy these great videos!

In the Classroom

As you study different classifications of animals, use this site on a projector or interactive whiteboard to introduce your students to many species of birds. This would also be a good research source for students to compare structures/functions of different bird species and their adaptations to their habitats.

Add your comments below (available only to members) | Become a Member

Rating (click star to set rating):

Close comment form

You must be registered and logged in to add items to your favorites.
Use the form at the top of the page to log in, or click here to join TeachersFirst (it's free!).

Close

Previous   440-460 of 2696    Next