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## 409 algebra results | sort by: Most Recent First Alphabetical Most Viewed First

### Number Gossip - Tanya Khovanova

5 to 12
Are you looking to have some fun with numbers or a quick class-starter? This site may be for you! Enter a number and find out all you wanted to know ...more
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Are you looking to have some fun with numbers or a quick class-starter? This site may be for you! Enter a number and find out all you wanted to know but were afraid to ask. For example, enter 9 and you will find out that 9 is the only number (except one) which is equal to the sum of the digits of its square and that 9 is the smallest odd composite number. Below the list of information are common properties of the number entered. Some numbers also include links to web pages about that number - for example, enter the number 6 and there is a link to Some Thoughts on Number 6 by John Baez.

tag(s): data (159), numbers (196), puzzles (207)

#### In the Classroom

Display the page on your interactive whiteboard or projector at the beginning of the class to spur math discussion. Choose some interesting information on numbers to use for a Fact of the Day or Interesting Information of the Week for students. Create a bulletin board displaying interesting facts about numbers for your classroom.

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### Rainbow Lab - Steven Janke

7 to 12
How are rainbows formed? Why do they only occur when the sun is behind the observer? If the sun is low on the horizon, at what angle in the sky ...more
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How are rainbows formed? Why do they only occur when the sun is behind the observer? If the sun is low on the horizon, at what angle in the sky should we expect to see a rainbow? This lab helps to answer these and other questions by examining a mathematical model of light passing through a water droplet. Follow each step of the lab - how light travels, reflection, refraction, exploration, and analysis - to solve the questions. Each segment offers some information about the topic and questions to explore or experiments. The focus of each of the activities is the Mathematical equations and principals involved in creating rainbows.

tag(s): angles (86), colors (81), light (49), problem solving (289)

#### In the Classroom

Introduce this site on your interactive whiteboard or projector when introducing this topic. Then assign different sections to students to explore then present to the rest of the class. Have students create multimedia presentations based on information learned through explorations in the site. Have students use one of the many TeachersFirst Edge tools reviewed here.

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### The Bridges Organization - Bridges Organization

6 to 12
Connect art and math using this site. The Bridges Organization was created in 1998 as an organization dedicated to promoting how Mathematics and the Arts work together. Each year they...more
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Connect art and math using this site. The Bridges Organization was created in 1998 as an organization dedicated to promoting how Mathematics and the Arts work together. Each year they hold an annual conference in cities from North America to Europe. Members include mathematicians, artists, sculptors, dancers, computer scientists, and many more. The website contains background information on the organization, links to past conferences, and current conference information. Perhaps of most interest to classroom teachers are the links to the galleries. Contained within these are hundreds of works of art that have been featured at the conferences (try the link to the 2010 Bridges Conference for example). Click on any of the links and find pictures of their work along with a short explanation of how math is used in the piece.

tag(s): art history (78), artists (78), geometric shapes (172), tessellations (6)

#### In the Classroom

What a wonderful way to connect to students' multiple intelligences! After viewing examples of the artwork with your students, team up with the Art teacher in your building to have students create their own pieces of art based on math examples. Tie in writing by assigning students to write about their artwork and the math used as the basis of their art piece. Display art work with the explanations for other students to enjoy. Or take pictures of the art work and challenge students to create voice narration for the photo using a tool such as Thinklink,reviewed here.

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###### More

4 to 10
This ativity provides positive reinforcement of correct math answers with a basketball player taking a shot at the basket. Click Start or any of the questions in the Table of ...more
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This ativity provides positive reinforcement of correct math answers with a basketball player taking a shot at the basket. Click Start or any of the questions in the Table of Contents left of your window to see a mathematics question and animation. If you answer the question correctly, the result will be a basketball shot animation; incorrect responses yield the correct answer. Questions include various strands and levels of mathematics such as rounding numbers, perimeter, word problems, common factors, and much more. At the completion of each round, the score appears with the number of correct responses and percentage correct. You must either click the back button (if you want to remain within the same topic) or click on a new topic to move on to the next question. The game is available in Spanish.

tag(s): charts and graphs (198), decimals (125), exponents (42), factors (39), fluency (25), map skills (82), number sense (96), operations (124), perimeter (31), problem solving (289), rounding (19)

#### In the Classroom

Introduce this site on your interactive whiteboard or projector. Then have students explore this site independently or in small groups. Create a class graph of scores, and challenge students to increase their percentage of correct problems. Share as a Favorite on your TeachersFirst public page or on your class website or blog for students to access the site outside of class.

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### National Repository of Online Courses - Monterey Institute for Technology and Education

8 to 10
A great resource for teaching math, especially when trying to teach with digital media, the National Repository of Online Courses offers free content teaching resources for Algebra...more
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A great resource for teaching math, especially when trying to teach with digital media, the National Repository of Online Courses offers free content teaching resources for Algebra One and Developmental Math. Provide your name, email, and title to be allowed into the Moodle courses that are already designed. Read tips for safely managing email registrations here.

tag(s): homework (42)

#### In the Classroom

Have students use activities from this website as homework on the web in Algebra One courses. It is a great practice for college learning settings where a lot of homework is going digital.

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### Number Base Clock - Shodor

3 to 12

This site provides practice in converting from base 10 to other values up to base 16. Three clocks are displayed and options are provided for choosing the value used on ...more
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This site provides practice in converting from base 10 to other values up to base 16. Three clocks are displayed and options are provided for choosing the value used on the clocks. Upon entering the choice, the hands on the clock turn to show the appropriate representation in the chosen base. The learner section provides information on base number systems and how they have been used in the past. The instructor section provides links to standards, place value in the curriculum, possible issues that may arise in the classroom and links to additional resources including an activity sheet.

tag(s): base ten (11), number sense (96)

#### In the Classroom

Provide students with the exploration questions and let them work with a partner to solve. Display the site on the interactive whiteboard or projector as a springboard to introduction of bases other than the base 10 system. Use when studying Ancient Mayans to demonstrate their counting system that used base 20.

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### Probabilistic Learning Activities Network - David Kay Harris

8 to 12
This site offers 30 probability activities based on questions. Answers are deliberately left out. The reasoning behind the site and the activities is thoroughly explained in the Teacher...more
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This site offers 30 probability activities based on questions. Answers are deliberately left out. The reasoning behind the site and the activities is thoroughly explained in the Teacher Support Section. Two different types of activities are offered - essential questions which are more generally and offer exploration of conceptual understanding, and QHE which are based on a hypothesis-experiment-instruction model. The activities include Java applet interactives. There is also a student support section which links to a student forum. Use of the forum isn't necessary to complete the activities on the site. In addition, there is a technology support link that offers information on technology found on the site such as information embedded onto Excel spreadsheets. The site is aligned to the IB curriculum but can be used elsewhere.

tag(s): probability (138), problem solving (289)

#### In the Classroom

Introduce the site on your interactive whiteboard or projector then assign students various portions of the site to explore or discuss within small groups. This site is great for gifted students to proceed at their own pace, allowing them many different activities to explore different types of probabilities through activities and essential questions.

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### Positive Linear Function Machine - Shodor

6 to 12

This site provides great practice with linear functions in the format of y=m*x+b. Integers between 0 and 10 are available for use. The activity can be used with or without ...more
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This site provides great practice with linear functions in the format of y=m*x+b. Integers between 0 and 10 are available for use. The activity can be used with or without scoring. The learner section provides a detailed explanation and examples on how to use the function machine. The instructor sections includes information on how to use the site in the classroom, links to standards and related resources. Be sure to check out the downloadable exploration questions that can be used in the classroom.

tag(s): functions (70), logic (242), patterns (88), problem solving (289)

#### In the Classroom

Demonstrate the site on your interactive whiteboard or projector by introducing the learner section and discussing examples included. Provide students with a copy of the explorations questions to complete on their own or with a partner. Provide a link on classroom computers to use as a classroom center. Provide a link on your classroom website or blog for students to practice at home.

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### Linear Function Machine - Shodor

6 to 12

Explore simple linear functions with this activity. The function is always a simple line of y=(m*x)+b, any integers from -10 to 10 can be inputted. You can practice algebra skills,...more
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Explore simple linear functions with this activity. The function is always a simple line of y=(m*x)+b, any integers from -10 to 10 can be inputted. You can practice algebra skills, pattern finding, arithmetic skills, and exploring the function of variables. The instructor tab also includes standards addressed, possible issues that may come up in class discussion, and links to similar resources.

tag(s): equations (150), functions (70), patterns (88), variables (21)

#### In the Classroom

Display on the interactive whiteboard or projector when introducing linear functions. Explore different variables with the class and problem solving strategies to use when working with linear functions. Create a link on your classroom computer and allow students to work in pairs to create functions and predict outputs.

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### Science IQ - Science IQ. com

8 to 12
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This website features answers to new science questions everyday. If the simple answer is not enough for you, there are helpful links, and suggested additional reading if you would like a greater understanding of the concept. Even more information is available through using the categorized science facts found on the left side of the screen. Questions are also searchable by keyword. Subjects include: physics, astronomy, chemistry, biology, mathematics, geology, engineering, and medicine.

tag(s): area (73), carbon (23), carbon footprint (11), chemicals (42), coal (14), earthquakes (47), energy (207), engineering (128), fossil fuels (18), fossils (45), glaciers (17), machines (28), matter (59), moon (73), natural resources (59), ozone (10), ph (4), planets (128), prime numbers (33), pythagorean theorem (32), questioning (35), space (220), square roots (23), stars (64), sun (71), volume (52)

#### In the Classroom

Try using this site's questions on a weekly or daily basis in science or math class to start discussions and provoke student thinking. Allow students to view the question on your interactive whiteboard or projector. Then brainstorm possible answers. Once enough thoughts have been seeded, share the real answers. Or, allow students to work at the answer as the lesson continues for a few days and reveal the correct answer as a finale to the lesson.

This site could also be used as a learning station for the question of the day or the week.

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### How To SMILE - National Science Digital Library

K to 12

This site is a compilation of many math and science resources along with a social networking component. Currently there are almost 2000 activities, lessons, and videos and the site...more
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In case you are wondering about the title, SMILE is the Science and Math Informal Learning Educators pathway of the National Science Digital Library (NSDL).

tag(s): resources (110), social networking (112), STEM (167), video (278)

#### In the Classroom

This is a perfect way to organize and sort lessons by topic or age range for future classroom use or to share with fellow teachers. Create a community list of lessons to use within your district. Share this site with other teachers in your building or district as a resource for STEM lessons. Share the video clips on your interactive whiteboard or projector.

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### Online Conversion - Robert Fogt

3 to 12
This site is the ultimate resource for any measurement or conversion need. Calculators are included for Math, Science, Cooking, Time, and much more. Categories are listed in alphabetical...more
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This site is the ultimate resource for any measurement or conversion need. Calculators are included for Math, Science, Cooking, Time, and much more. Categories are listed in alphabetical order from Acceleration to Weight/Mass. Within each category are the different converters/calculators. For example, after choosing volume, choices include acres, barrels (dry, federal, liquid, and wine), cubic units, gallons, quarts teaspoons, yards, and more. Other interesting conversions include your weight on other planets, your age in dog years, and translations to and from Pig Latin. You are sure to find exactly the conversion for any need within this site along with others to use just for fun!

tag(s): conversions (25), measurement (171), temperature (33), time (141)

#### In the Classroom

Following a lesson on conversions, allow students to access the site to check answers. Mark this site in your favorites and share it on your TeachersFirst public age for quick access. Use as a handy resource on your interactive whiteboard or projector anytime that conversions come up in your classroom. Share this site with students through your class web page or TeachersFirst public page as a resource to use outside of class-- even when cooking with mom or dad!

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### Welcome to the Planets - GLS

2 to 12

Enjoy NASA's images of planets and spacecraft used in space exploration. This site is a great reference site for concise information about planets, and spacecraft. An online glossary...more
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Enjoy NASA's images of planets and spacecraft used in space exploration. This site is a great reference site for concise information about planets, and spacecraft. An online glossary contains space terms, and the origins of names for planets, moons, or spacecraft that are from Greek mythology, Latin, or famous people. Spacecraft information includes the assembly, lift off, and mission information. Spacecraft information comes in an audio format too. A CD is offered for sale from the National Space Science Data Center.

tag(s): earth (230), planets (128), solar system (119), space (220)

#### In the Classroom

In science, this site easily lends itself to planetary studies. Science classes can compare mass, density, atmospheric components, and surface materials. Math classes can use information provided for many real life math applications comparing distances, revolutions, temperatures, distance from the sun, mass, and diameter. Practice place value and estimation in a universal way. An extra challenge for gifted students can easily lend itself to mean, median, and mode as well as graphing possibilities. Consider Earth day activities to focus on the uniqueness of our planet and the qualities of our planet to maintain life as we know it. Include as a reference on your web site, or as an informational piece to web quests in math or science. Challenge students to create multimedia presentation highlighting one of the planets or spacecrafts. Have students narrate an image using a site such as Thinglink, reviewed here. For quicker projects, create electronic "posters" or word graphics for adopted word using tools such as Piclits, (reviewed here,) or Typogenerator, (reviewed here).

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### NASA Math Trax - NASA

7 to 12

Create graphs by entering an equation or selecting an equation from the drop-down and watch what happens!. Try entering raw data for analysis. MathTrax graphs the equations and provides...more
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Create graphs by entering an equation or selecting an equation from the drop-down and watch what happens!. Try entering raw data for analysis. MathTrax graphs the equations and provides descriptions of those graphs using both text and sound, which is great for those with limited vision, weaker readers, or who need auditory cues. The text descriptions can be read by Java-capable screen readers such as Jaws for Windows, or can be inputted into speech synthesizing software to create self-voicing applications. MathTrax provides color and line settings for drawing graphs to aid users with different vision-impairments.

tag(s): charts and graphs (198), equations (150), functions (70)

#### In the Classroom

Download the program and provide opportunities to play and understand the relationships between graphs and equations. Have students work on individual laptops after a class demonstration on your projector or interactive whiteboard. Provide this link on your class website for students to access both in and out of the classroom.

## Edge Features:

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### Math Machines - Robert Chaney

8 to 12

If you are looking for ideas to incorporate mathematical problem solving with fun, hands-on activities this site is for you! Well over 20 activities are offered covering Algebra, Trigonometry,...more
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If you are looking for ideas to incorporate mathematical problem solving with fun, hands-on activities this site is for you! Well over 20 activities are offered covering Algebra, Trigonometry, Science/Physics, General Math, and Technology concepts. Choose a category, then select the activity and view all the materials offered. Titles include Color Sines, Right Triangle SAM, and Binary Signals. Each activity includes facilitator notes including 11 items from overview, setup, discussion questions, and troubleshooting. Most also include participant handouts in MS Word format and software needed for calculator programs.

tag(s): angles (86), critical thinking (117), electricity (90), light (49), logic (242), magnetism (38), stars (64)

#### In the Classroom

Share this site with students and preview each of the activities, then allow students to choose an activity for a math project. Several activities on the site are perfect for use as cross-curricular projects with the Science or Technology departments. Use this site as a resource for math or technology fairs. This site is perfect to use as a resource with gifted students - allow them to choose a project that coincides with their interests.

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### PRIME Mathematics Encyclopedia (Platonic Realms Interactive Mathematics Encyclopedia) - B Sidney Smith

3 to 12
This site is an in-depth encyclopedia of mathematical terms. It is designed to be browsed alphabetically and you can input search terms in the box at the left-hand side of ...more
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This site is an in-depth encyclopedia of mathematical terms. It is designed to be browsed alphabetically and you can input search terms in the box at the left-hand side of the page. Search terms can be further refined by choosing either elementary or advanced level, and by choosing math topics to be included with the result. Some definitions include links to other explanations or outside links with more information.

tag(s): dictionaries (56), probability (138), problem solving (289), vocabulary (318)

#### In the Classroom

Create a link to the site on classroom computers to use as a student resource. Provide students with the definition of terms and challenge them to find the term being defined. Share this site with students and allow them time to explore the site. Create a scavenger hunt and ask students to search for different terms on the site.

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### EZSchool - EZSchool

K to 12
EZSchool is an educational portal that contains EZ worksheets, interactives, online study tools, and tutorials. Although this site is "busy" with clutter from some related advertisements,...more
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EZSchool is an educational portal that contains EZ worksheets, interactives, online study tools, and tutorials. Although this site is "busy" with clutter from some related advertisements, it is easy to navigate by grade level, subject, or more specific topics such as grammar, writing, and vocabulary for English, or word problems, geometry, and algebra for math, biology and chemistry for science, as well as Spanish, Japanese, and Hindi language activities. There are also SAT/PSAT practice questions with detailed answers. All materials are free to use, print, and distribute for use in the classroom or at home. The website is frequently updated with new activities. Weekly updates to the site are offered on the home page.

tag(s): grammar (210), japan (60), japanese (45), spanish (110), vocabulary (318), writing (369)

#### In the Classroom

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### The Math Forum - Drexel University

K to 12

This forum is a leading resource for mathematics information on the internet. Their purpose is to provide discussion and communication opportunities for all interested in math through...more
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tag(s): professional development (161), social networking (112)

#### In the Classroom

Browse the Teacher Exchange section of the site to find lessons to supplement current classroom activities. Visit Teacher2Teacher to post questions for other teachers or view current discussions. Stay current with latest mathematical practices and research through the Math Forum's newsletter.

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### Number2.com - Eric Loken and Josh Millet

8 to 12
This website offers students access to comprehensive free online test preparation courses for the SAT, ACT, and GRE. It contains a vast reservoir of questions, tutorials, and vocabulary...more
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This website offers students access to comprehensive free online test preparation courses for the SAT, ACT, and GRE. It contains a vast reservoir of questions, tutorials, and vocabulary drills for test prep. Registration is required; however, access to the site is free. Parents and guidance counselors can also create accounts to help coach students by using the reports created within the site to monitor progress. The site adjusts questions to skill levels as you go so it is more interactive than other sites with a bank of practice questions.

tag(s): test prep (96), tutorials (49), video (278), vocabulary (318)

#### In the Classroom

Share the site with students and parents on your class webpage or blog, during meet-the-teacher night, or at Open Houses as a resource for test practice. Allow students to access the site for practice during free time or study hall periods. Match students with a partner to coach each other within the site.

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### World Maths Day - Mathletics

K to 12
This site offers all information on World Maths Day, usually held in March. World Maths Day has taken place each year since 2007. They plan to add science challenges. Students ...more
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This site offers all information on World Maths Day, usually held in March. World Maths Day has taken place each year since 2007. They plan to add science challenges. Students play at home and at school against other students around the world in live games of mental arithmetic. Each game lasts for 60 seconds and students can play up to 100 games, earning points for their personal tally. The students who answer the most questions correctly appear on the Hall of Fame. There are 5 different levels of play, 20 games on each level. All participants receive a digital certificate of achievement. Site resources include teacher and student quick launches, technical guides, and printable posters for the classroom.

tag(s): competitions (14), puzzles (207)

#### In the Classroom

Enroll your classroom and enjoy a fun Math Day by allowing students to participate in the Math games for a portion of their class time. Introduce the site on your interactive whiteboard, enroll your class and encourage them to participate from home for extra credit. Challenge other classes in your school to participate, record scores, and have a friendly competition for World Maths Day. Incorporate a PTO/PTA evening for family involvement.

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