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Point-Form Slope of a Line - Explore Math

Grades
7 to 10
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This activity, designed for lower level math classes such as 7-9 grade algebra, allows students to visualize the relationship between the point-slope form and the slope-intercept form...more
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This activity, designed for lower level math classes such as 7-9 grade algebra, allows students to visualize the relationship between the point-slope form and the slope-intercept form of a line. This is a good hands-on activity for the visual learner.

tag(s): charts and graphs (169)

In the Classroom

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Parabolas - Explore Math

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11 to 12
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This activity, designed for higher level math classes such as 11-12 grade trigonometry, allows students to manipulate focus, directrix, and vertex, as well as visualize the string property,...more
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This activity, designed for higher level math classes such as 11-12 grade trigonometry, allows students to manipulate focus, directrix, and vertex, as well as visualize the string property, with parabolas.

tag(s): arab (11)

In the Classroom

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Perimeter and Area of Rectangles - Explore Math

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11 to 12
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This activity, designed for higher level math classes such as 11-12 grade trigonometry, demonstrates how changing the area of a rectangle affects the perimeter. This is a good hands-on...more
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This activity, designed for higher level math classes such as 11-12 grade trigonometry, demonstrates how changing the area of a rectangle affects the perimeter. This is a good hands-on activity for the visual learner.

tag(s): area (52), charts and graphs (169)

In the Classroom

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Logarithmic Functions: Translating and Scaling - Explore Math

Grades
11 to 12
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This activity, designed for higher level math classes such as 11-12 grade trigonometry, allows students to change the base of logarithms and visualize the corresponding exponential...more
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This activity, designed for higher level math classes such as 11-12 grade trigonometry, allows students to change the base of logarithms and visualize the corresponding exponential function.

tag(s): charts and graphs (169), equations (120)

In the Classroom

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Least Squares Fit Line - Explore Math

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11 to 12
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This activity, designed for advanced level math classes such as 11-12 grade introductory calculus, allows students to manipulate points on a graph and determine the least squares fit...more
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This activity, designed for advanced level math classes such as 11-12 grade introductory calculus, allows students to manipulate points on a graph and determine the least squares fit line for the data. This activity can also be used in a physics class.

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Hyperbola - Explore Math

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9 to 12
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This activity, designed for intermediate level math classes such as 10-11 grade geometry, allows students to manipulate vertices and foci, and visualize asymptotes and the string property...more
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This activity, designed for intermediate level math classes such as 10-11 grade geometry, allows students to manipulate vertices and foci, and visualize asymptotes and the string property with a hyperbola.

tag(s): charts and graphs (169)

In the Classroom

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Ellipse - Explore Math

Grades
9 to 12
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This hands-on activity, designed for intermediate level math classes such as 10-11 grade geometry, allows students to change vertices and foci in an ellipse, visualize the string property,...more
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This hands-on activity, designed for intermediate level math classes such as 10-11 grade geometry, allows students to change vertices and foci in an ellipse, visualize the string property, and experiment with an ellipse.

In the Classroom

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Points in a Complex Plane - Explore Learning

Grades
10 to 12
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This hands-on math activity, designed for advanced math classes such as 11-12 grade trigonometry, allows students to visualize numbers in polar form and how they relate to Cartesian...more
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This hands-on math activity, designed for advanced math classes such as 11-12 grade trigonometry, allows students to visualize numbers in polar form and how they relate to Cartesian coordinates.

tag(s): charts and graphs (169), numbers (119)

In the Classroom

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Area Probability (Throw Darts!) - Explore Learning

Grades
7 to 11
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This math activity, designed for lower level math classes such as 8-10 grade upper algebra, allows students to manipulate the area of a circle and a rectangle to determine probability....more
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This math activity, designed for lower level math classes such as 8-10 grade upper algebra, allows students to manipulate the area of a circle and a rectangle to determine probability. This is a good hands-on activity that students will enjoy and will help them see the relationship between area and probability

tag(s): probability (96), statistics (116)

In the Classroom

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Absolute Value of a Linear Function - Explore Learning

Grades
11 to 12
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This math activity, designed for advanced math classes such as 11-12 grade introductory calculus, allows students to compare various graphs in the slope-intercept form. This is a good...more
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This math activity, designed for advanced math classes such as 11-12 grade introductory calculus, allows students to compare various graphs in the slope-intercept form. This is a good hands-on activity that allows students to visualize absolute value.

tag(s): functions (52)

In the Classroom

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Fooble :: Perplexus

Grades
9 to 12
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Here's one that will tie your brain in knots. Some of these logic puzzles will challenge even advanced high school students, but both solutions and discussion are readily available...more
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Here's one that will tie your brain in knots. Some of these logic puzzles will challenge even advanced high school students, but both solutions and discussion are readily available for those who struggle. There are many different puzzle types, and new content seems to appear regularly. Note, however, that the ad banner space occasionally displays content that some might not deem appropriate for school use.

tag(s): logic (165), puzzles (143)

In the Classroom

Teachers will find this one a great source for "extra point stumpers."

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Teaching Math in America - Smithsonian Institution

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6 to 12
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The Smithsonian's homage to math teachers of the past presents an interesting discussion of how "what's important" in math has changed along with the tools used to teach it. The ...more
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The Smithsonian's homage to math teachers of the past presents an interesting discussion of how "what's important" in math has changed along with the tools used to teach it. The resource collection contains a number of math sites that teachers might also find useful.

tag(s): design (79), teaching strategies (41)

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CensusScope

Grades
6 to 12
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Created by a university consortium, this site offers a wealth of graphs, charts, and data that students can use to analyze America's demographics. There are a number of prefabricated...more
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Created by a university consortium, this site offers a wealth of graphs, charts, and data that students can use to analyze America's demographics. There are a number of prefabricated analyses available, and there is also enough data to create exercises or activities that let students explore on their own. There are a number of possibilities for social studies, math, or statistics in this one.

tag(s): census (12), demographics (13), population (48)

In the Classroom

Share these visuals on your projector or interactive whiteboard. Have students investigate one area of this data and contribute to a class wiki. Not comfortable with wikis? Have no wiki worries - check out the TeachersFirst's Wiki Walk-Through.

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A View from the Back of the Envelope

Grades
6 to 12
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Have you ever struggled to give a student an example that demonstrates how big big can be, or how small small things are? Here's an eclectic collection of demonstrations and ...more
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Have you ever struggled to give a student an example that demonstrates how big big can be, or how small small things are? Here's an eclectic collection of demonstrations and jottings that let students compare both the vast and the minute.

tag(s): estimation (34), statistics (116)

In the Classroom

Use the content directly, or as an inspiration for your own comparisons.

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Calculus Help

Grades
9 to 12
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What it says is what you get, but there are lots of calculus-related activities and resources at this site created by a math teacher. The site offers a problem of ...more
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What it says is what you get, but there are lots of calculus-related activities and resources at this site created by a math teacher. The site offers a problem of the week - with the solution the following week(!) as well as "fun stuff" involving calculus. This could be a useful site for students whose motivations range from mere survival to extended study.

tag(s): mental math (18)

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Planetarium: a puzzle-story in twelve weekly installments

Grades
7 to 12
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Here's an ongoing interactive puzzle that can really grow on you. A free registration lets users move through the puzzle one week at a time, discovering new clues with each ...more
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Here's an ongoing interactive puzzle that can really grow on you. A free registration lets users move through the puzzle one week at a time, discovering new clues with each visit and working with numbers and words to unlock the puzzle's secrets. This would be a great one for an ongoing activity that builds logic and higher order reasoning skills.

tag(s): logic (165), puzzles (143)

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Maths Dictionary - Jenny Eather

Grades
4 to 12
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This "down under" site is much more than a dictionary. There's a definition for each term listed, and most of the definitions include one or more illustrations of the concepts. ...more
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This "down under" site is much more than a dictionary. There's a definition for each term listed, and most of the definitions include one or more illustrations of the concepts. The definitions include the most basic math terms, as well as many more advanced words, making this a useful site for almost any grade level.

tag(s): spelling (96), vocabulary development (89)

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ABC News - ABC news

Grades
6 to 12
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This nationally published news source makes for an excellent resource for a teacher or student looking for current events. There's information ranging from politics, global news, business,...more
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This nationally published news source makes for an excellent resource for a teacher or student looking for current events. There's information ranging from politics, global news, business, technology - even pop culture. This would be useful in any classroom where a knowledge of the now was focused on.

tag(s): news (229), newspapers (91)

In the Classroom

Use this site as a resource for current events projects - assign students various weeks through out the semester in which they are to be the class news reporter, keeping their peers up to date and informed. Have students research whats going on via this news site, and present a small presentation at the beginning of class every day during their week. Students can either orally present, or for the technologically inclined, create a short video summarizing the same information. Have students create news briefs and share them using a tool such as SchoolTube reviewed here.

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National Council of Teachers of Mathematics - NCTM - NCTM

Grades
1 to 12
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NCTM helps set instructional standards and provide teaching resources for teachers of mathematics at all levels. NCTM's site includes a publications catalog, news releases, and other...more
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NCTM helps set instructional standards and provide teaching resources for teachers of mathematics at all levels. NCTM's site includes a publications catalog, news releases, and other information services.

tag(s): professional development (398)

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NSF Classroom Resources - National Science Foundation

Grades
4 to 12
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This is a collection of science and math lessons and web resources ranging from how the Internet works to nanoscience, engineering, biology, and principles of physics and chemistry....more
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This is a collection of science and math lessons and web resources ranging from how the Internet works to nanoscience, engineering, biology, and principles of physics and chemistry. The content is predictably detailed, "real science" based on topics and phenomena that will interest students. These are the best of the best lessons and resources with applicability to lots of settings.

tag(s): antarctica (29), arctic (40), biomes (113), chemicals (39), computers (106), cultures (131), earth (184), engineering (121), environment (238), fractions (159), geometric shapes (136), numbers (119), origami (15), planets (112), robotics (22), space (216), symmetry (27)

In the Classroom

Bookmark this site as a reference site for finding further material. Under each subject find a varity of formats from forums and articles, to videos, interactives, podcasts, experiments and more. Some of the resources on this site may lead to a starting point for individual or group projects. Use parts of this site at a center. Share this site with staff (especially new teachers) and parents looking to extend science and math activities at home.

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