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## 554 mind-stretchers results | sort by: Most Recent First Alphabetical Most Viewed First

### Geometry - 3D Shapes - Annenberg Media

5 to 9

This website offers motivational and interactive class activities to learn more about 3D shapes. It also shows how to calculate surface area and volume, as well as other mathematical...more
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This website offers motivational and interactive class activities to learn more about 3D shapes. It also shows how to calculate surface area and volume, as well as other mathematical properties about the 3D shapes. Specific topics include surface area and volume, platonic solids, Euler's Theorem, and several others. The Test Your Skills link provides an interactive quiz complete with photos, illustrations, and animations. The About This Interactive link provides standards, goals, lesson ideas, and more. Some of the activities require FLASH. You can get it from the TeachersFirst Toolbox page..

tag(s): area (71), volume (53)

#### In the Classroom

Get your interactive whiteboards (or projectors) ready for this intriguing website. The website introduction page activates students' schema by explaining how we live in a three-dimensional world. Have your students add to the website's list of 3D shapes in their classroom. Complete the web activities as a class (on a projection screen), or have your students team up and research the website in pairs. At the conclusion of the activity, have your students divide into two teams to complete the interactive quiz. Project the questions on the screen, and have the teams discuss the math problem and determine the best answers.

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### Count On! - Tribal Group

3 to 9

What a fabulous math website! The homepage features numerous interactive math activities (updated frequently). There are also links to countless math activities (mostly interactive),...more
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What a fabulous math website! The homepage features numerous interactive math activities (updated frequently). There are also links to countless math activities (mostly interactive), professional information about the teaching of math, and much more. Some examples of the topics include 3D geometry, time, money, Sudoku, weight and measurement, numbers, probability, Tangrams, and numerous others. This British site provides benchmarks and standards. Some of the activities require FLASH. You can get it from the TeachersFirst Toolbox page.. NOTE: the site is slow to open during heavy-traffic times. Please be patient.

tag(s): factors (40), money (184), numbers (194), probability (137), sudoku (16), time (138)

#### In the Classroom

This site is an excellent resource for educational activities both in and out of the classroom. Be sure to visit the "Games" link. There you will find numerous educational math activities that are ready for your interactive whiteboards or projection screens. Share the link on your teacher web page for parents and students to access from home, as well.

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### Johnnie's Math Page Fun

K to 8

This collection of over fifty interactive math activities was organized by a math specialist (former 5th grade teacher). Difficulty levels are color-coded for "Primary Math," "Best...more
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This collection of over fifty interactive math activities was organized by a math specialist (former 5th grade teacher). Difficulty levels are color-coded for "Primary Math," "Best Primary Math," "Intermediate Math," and "Best Intermediate Math." The activities include basic math and logic activities. Some of the topics include Hanoi towers, weights, Tetris, algebra, abacus, point of view, and countless others. What a fabulous resource for any elementary or middle school math class. All of the activities are interactive and require FLASH or JAVA. You can get both from the TeachersFirst Toolbox page..

tag(s): counting (111), patterns (86), symmetry (50), tangrams (13)

#### In the Classroom

What a fantastic website to include in your classroom web page and newsletter. All of these activities are perfect for an interactive whiteboard or projector. This is an excellent resource for gifted students. The activities could also be used for enrichment, additional practice, and re-teaching skills. So turn up the volume and treat your class to a mind-bending challenge.

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### Statistics - Johnnie's Math Page

2 to 8
This phenomenal collection of interactive statistics activities was organized by a math specialist (a former 5th grade teacher). There are about seven activities provided. Specific...more
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This phenomenal collection of interactive statistics activities was organized by a math specialist (a former 5th grade teacher). There are about seven activities provided. Specific topics of interest include a few graph maker activities, pie charts, mean and median, and spinners. All of the activities are interactive and require FLASH or JAVA. You can get both from the TeachersFirst Toolbox page..

tag(s): charts and graphs (197), mean (26), median (23), statistics (126)

#### In the Classroom

Use an interactive whiteboard and make the activities a class challenge. The activities at this website offer a "ready to go" learning center. Or these web activities would be perfect for individual practice on laptops or in the computer lab.

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### Probability - Johnnie's Math Page

4 to 8
This website includes four interactive web activities that were organized by a math specialist (and former 5th grade teacher). The specific topics include spinners, dice, and dice tallying....more
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This website includes four interactive web activities that were organized by a math specialist (and former 5th grade teacher). The specific topics include spinners, dice, and dice tallying. All of the activities are interactive and require FLASH or JAVA. You can get both from the TeachersFirst Toolbox page..

tag(s): probability (137)

#### In the Classroom

This is a "ready to go" learning center. Use the interactive spinners and dice for student-created games or teacher-created review games in any subject. Or better yet, have students work independently on laptops or in the computer lab.

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### Geometry - Johnnie's Math Page

2 to 8

This fantastic collection of links was organized by a math specialist (a former 5th grade teacher). The site provides over forty interactive math activities that all relate to geometry....more
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This fantastic collection of links was organized by a math specialist (a former 5th grade teacher). The site provides over forty interactive math activities that all relate to geometry. Some of the specific topics include pattern blocks, square tiles, pentominoes, geoboards, symmetry, tangrams, triangles, angle measures, polyhedra, cartesian grids, tessellations, point of view, and numerous other topics. What a wonderful resource to use with elementary or middle school math students. All of the activities require FLASH or JAVA. Get both from the TeachersFirst Toolbox page..

tag(s): angles (87), symmetry (50), tangrams (13)

#### In the Classroom

This website provides excellent resources to use for additional practice, re-teaching skills, enrichment activities, or even advanced activities for your gifted students. All of the math activities are perfect for an interactive whiteboard (or projector). Treat your class to these fabulous resources.

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### Numbers - Johnnie's Math Page

K to 5

The collection of over fifty interactive math activities was organized by a math specialist (former 5th grade teacher). Some topics are for primary grades (such as the count aloud and...more
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The collection of over fifty interactive math activities was organized by a math specialist (former 5th grade teacher). Some topics are for primary grades (such as the count aloud and sequence activities). Other topics are more complex (such as factorization and equations). Specific topics include base 10, counting, sequence, ordinals, odd and even numbers, place value, addition, equations, subtraction, integers, number line, Venn diagrams, algebra, factorization, cuisennaire rods, and others. What a fabulous resource for any elementary math class. All of the activities require FLASH. Get it from the TeachersFirst Toolbox page..

tag(s): counting (111), equations (153), factors (40), integers (40), numbers (194), place value (54), preK (284)

#### In the Classroom

Treat your students to these wonderful, ready-to-go activities. All are perfect for an interactive whiteboard or projector. This is also an excellent resource to use for additional practice, re-teaching skills, enrichment activities, or even advanced activities for your gifted students. Be sure to include this website as a link on your classroom web page.

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### Mathematics - 5th Grade - Utah State Of Education

4 to 6

Although this website appears to offer a simple list of lesson plans, it is a "diamond in the rough." All of the lesson plans relate to the same standard, Students ...more
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Although this website appears to offer a simple list of lesson plans, it is a "diamond in the rough." All of the lesson plans relate to the same standard, Students will expand number sense to include integers and perform operations with whole numbers, simple fractions, and decimals. Specific lesson plans include, "How Much is a Million," "Multiplication Strategy Review," "Partial Quotient," "Mixed Number/Improper Fraction Review," "Playground Measurement," and "Fraction Track."

All lesson plans are extremely detailed and provide standards, material lists, step-by-step instructions, interactive elements, links, printable pages, and more. Some of the links require JAVA. Get it from the TeachersFirst Toolbox page..

tag(s): fractions (229), measurement (178), mixed numbers (14), multiplication (209), numbers (194)

#### In the Classroom

Get your interactive whiteboards ready for the "Fraction Track" activity. Don't miss all of the concise, free lesson plans.

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### The x plus y files - Issue 11 - Symmetry +

3 to 12
This issue of "x plus y" offers math teachers some intriguing ideas and activities to incorporate into class lessons at all levels. There are challenging logic puzzles, but also some...more
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This issue of "x plus y" offers math teachers some intriguing ideas and activities to incorporate into class lessons at all levels. There are challenging logic puzzles, but also some basic math activities and information. For example, the site offers "multiple tricks" that provide easy methods for students to figure out the multiples of 7, 9, etc. There are eight specific activities provided including: Mathletics, An Open and Shut Case Concluded, Puzzling Scales, Guard Duty, Multiple Tricks, Alphanumeric, Squares and Quadrilaterals, and Shepherd's Problem.

tag(s): logic (244), mental math (28), multiples (31), number sense (94)

#### In the Classroom

These activities are all ideal for a projection screen. Why not display one of the activities on a large screen as a brain stretcher activity at the beginning of class. If you are working on building mental math skills, some of the tips for teaching multiples will be handy. Why not ask the students to make posters with the tricks.

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### Math - 3rd Grade Lesson Plans - Utah State Of Education

2 to 4

Although this website appears "plain vanilla," there are exciting "sprinkles" throughout. The website offers several lesson plans complete with standards, printable pages, and interactive...more
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Although this website appears "plain vanilla," there are exciting "sprinkles" throughout. The website offers several lesson plans complete with standards, printable pages, and interactive activities. All of the lesson plans relate to a specific standard Students will understand the base-ten numeration system, place value concepts, simple fractions and perform operations with whole numbers . Don't miss out on the interactive activity - Fraction Track. Some of the links require JAVA. Get it from the TeachersFirst Toolbox page..

tag(s): base ten (11), fractions (229), numbers (194), operations (122), place value (54), whole numbers (16)

#### In the Classroom

If you are looking for a new way to teach simple fractions, the base-ten numeration system, place value, and more - don't miss out on this link to lesson plans. These lesson plans include interactive elements (perfect for your interactive whiteboards or independent practice). They are ready to go and very simple to use. This website could also be used for enrichment and/or advancement for your more accelerated math students.

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### Fill-It-In Outline Mathematics - Alexander Bogomolny

1 to 10
This website is truly a rare find - combining math and reading skills. Although the main page is aesthetically plain, the activities are very challenging. Most are set-up as word ...more
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This website is truly a rare find - combining math and reading skills. Although the main page is aesthetically plain, the activities are very challenging. Most are set-up as word problems that require reading, comprehension, math skills, and more. The "outline math problems" provide students with 3-5 choices. You simply click on the blank and the choices for the answers are provided. There are activities for primary grades (such as basic addition practice) as well as advanced activities for secondary grades (such as geometry concepts). Many of the activities require JAVA. Get it from the TeachersFirst Toolbox page..

tag(s): angles (87), logic (244), multiples (31)

#### In the Classroom

These activities are perfect for an interactive whiteboard (or projector). You could also provide a link to this website in your class newsletter or on your class web page. Many of the activities would provide excellent at-home practice and/or enrichment. Challenge your students to answer a question of the week for extra credit.

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### Mrs. Cassidy's Web Page - Fall and Thanksgiving - Mrs. Cassidy

K to 3

This seasonal website was created by a teacher. It offers many enrichment activities all about Fall and Thanksgiving. Some examples of activities include: "Catch the Falling Leaves,"...more
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This seasonal website was created by a teacher. It offers many enrichment activities all about Fall and Thanksgiving. Some examples of activities include: "Catch the Falling Leaves," "Fun in the Garden," and "Find the Differences." Educational topics include numbers, counting, problem solving, logic, and art. Many of these activities require JAVA and/or FLASH. Get them from the TeachersFirst Toolbox page..

tag(s): fall (11), holidays (136), thanksgiving (34)

#### In the Classroom

Your class will "eat up" these free resources all related to Fall and Thanksgiving. All of these activities are ready for your interactive whiteboard (or projector).

Provide this link in your fall newsletter as free (educational) activities for students to use during the fall break.

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### Planet Science - NESTA

K to 12

This MUST SEE interactive science website features eight specific areas. The "News" section includes weekly news updates and features. "Wired" has challenging interactive games for...more
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This MUST SEE interactive science website features eight specific areas. The "News" section includes weekly news updates and features. "Wired" has challenging interactive games for grades 4-12. "Sci-Teach" provides countless resources for teachers of all grades. "Out There" takes you to the "back garden of science delights," including inventors, sound, vampires, and the flu. "Parents" has useful ideas - even science experiments for children's parties. "Under 11s" is geared for younger students, an excellent collection!. The activities teach traditional science topics using new multimedia. The "Next Steps" link challenges students to think about their future careers (both science and non-science). There are printable pages and interactive activities for elementary, middle, and high school students. The "Library" link features countless online science resources.

Nearly every one of the activities requires FLASH. Get it from the TeachersFirst Toolbox page..

tag(s): inventors and inventions (89), planets (131), sports (98), water (132)

#### In the Classroom

Nearly all of the activities are ideal for interactive whiteboards (or projectors). This site is so rich it may be overwhelming. If you are an elementary teacher, start at the "Under 11s" link. Otherwise, visit the "Sci-Teach" link first for some excellent ideas, resources, and science fun. Preview this site before starting any science unit to find related activites and extensions.

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### Math Teasers - NCES

5 to 12
This site offers a monthly math brain teaser problem to test your math/statistical knowledge. Solutions to the questions are hidden behind a clickable bar so you can share the question...more
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This site offers a monthly math brain teaser problem to test your math/statistical knowledge. Solutions to the questions are hidden behind a clickable bar so you can share the question on a projector without revealing the answer. Previous math teasers and solutions can be found in the archives.

tag(s): brain (66), statistics (126)

#### In the Classroom

Be sure to include this site on your teacher web page for students to access both in and outside of class. Use the challenge as an extra credit opportunity or a prompt for "math blogging."

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### Mystery Net's Kids Mystery - MysteryNet: The Online Mystery Network

4 to 9

If solving a good mystery is what your students crave, then this website is worthy of bookmarking. There are 28 'quick solve' mystery stories provided. Students read the story, and...more
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If solving a good mystery is what your students crave, then this website is worthy of bookmarking. There are 28 'quick solve' mystery stories provided. Students read the story, and then choose the perpetrator. Clues are provided as necessary. This website also features 29 chiller mystery stories to solve. At the bottom of the screen, you will find links to lesson plans (about mysteries), mystery bibliographies, a "tricks" page, and much more.

tag(s): forensics (26)

#### In the Classroom

Reading teachers in the elementary and middle grades will appreciate the complicated story line at a lower reading level. Students will be motivated to read more of the stories.

Why not display the mystery on an interactive whiteboard (or projection screen) as an anticipatory set for a science class on forensics, reading lesson about "finding clues," or a mystery unit. Use the tools to highlight clue words and other ways that the mystery "leads" you to the solution. Challenge your class to create their own 'quick solve' mysteries individually or with a partner on a class wiki. If your teaching assignment allows you to team teach, coordinate your mysteries in reading class with a look at scientific method in science class, using these mysteries.

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### Mrs. Cassidy's Web Page - Merry Christmas - Mrs. Cassidy

K to 3

Visit this seasonal website for some Christmas and general winter fun. Mrs. Cassidy, a primary teacher, has created another useful collection. Some examples of activities include: "Mix...more
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Visit this seasonal website for some Christmas and general winter fun. Mrs. Cassidy, a primary teacher, has created another useful collection. Some examples of activities include: "Mix and Match Snowman," "Make a Snowflake," and "Trim a Tree." Educational topics include matching, problem solving, logic, art, and others. Many of these activities require JAVA and/or FLASH. Get them from the TeachersFirst Toolbox page..

tag(s): christmas (55), logic (244), matching (24), problem solving (294)

#### In the Classroom

All of these activities would be perfect on your interactive whiteboard. Students would also enjoy independent exploration of the activities on a classroom computer or cluster. Be aware - some of these activities lack educational value, so check out the activity BEFORE using it in your class. Most of the links are very educational and offer excellent enrichment activities. Also, you may notice some spelling differences (since some of the links originate from BC, Canada).

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### Cracker - sciencemuseum

3 to 8

An addictive logic challenge, this site asks student to "crack the code" to break into a security system at the Science Museum. Students use a telephone keypad to enter possible ...more
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An addictive logic challenge, this site asks student to "crack the code" to break into a security system at the Science Museum. Students use a telephone keypad to enter possible codes (4-digits). The challenge is somewhat similar with the board game Mastermind. Students are given six attempts to try to "crack the code" before an alarm goes off. After each attempt, students are provided with feedback about which numbers were correct. Dark green numbers represent numbers that are in the code, but in the wrong position. Light green numbers represent numbers that are in the code, and in the correct position. This site requires FLASH. Get it from the TeachersFirst Toolbox page..

tag(s): logic (244)

#### In the Classroom

What an excellent activity to practice logic and deduction skills! Students will love the challenge of trying to "crack the code". Science teachers trying to introduce hypothesis testing can use model this activity on an interactive whiteboard to demonstrate the process. This would then make an ideal cooperative learning activity for students to try in small groups. Elementary gifted students would also enjoy the challenges that this website provides.

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### Launchball - sciencemuseum

3 to 12

Beware - your students may get addicted to this science activity! Launchball challenges students to use batteries, solar power, magnets, and other types of virtual energy to move a...more
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Beware - your students may get addicted to this science activity! Launchball challenges students to use batteries, solar power, magnets, and other types of virtual energy to move a ball from a starting point to an ending point. There are numerous levels (up to 30). The program also offers hints and provides science facts throughout the activity. This mind stretcher allows students to play the game of virtual physics or create and share their own Launchball game. Users are able to sign-in and receive a password (free of charge). This allows users to return to the same game and save their conquests. This site requires FLASH. Get it from the TeachersFirst Toolbox page..

tag(s): electricity (93), energy (210)

#### In the Classroom

Introduce your students to this unique, mind-stretching activity using an interactive whiteboard. Then allow your students to work individually or in groups to navigate the activities and eventually create their own Launchball games to challenge classmates. What an exciting way to learn about energy! Use a single class log-in for safety's sake and to monitor student appropriateness, if necessary.

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### Fake Out! - Education Place Houghton Mifflin

K to 8
Fake Out! is like an ongoing online game similar to "Balderdash." The game provides unusual (but REAL) vocabulary words that are categorized by grade levels: K-2, 3-5 and 6-8. ...more
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Fake Out! is like an ongoing online game similar to "Balderdash." The game provides unusual (but REAL) vocabulary words that are categorized by grade levels: K-2, 3-5 and 6-8. Students choose a word and attempt to define it by choosing among several definitions provided. If students choose the wrong definition, they are given the correct definition as well as a tally of how many times others chose each definition that is listed. Students are also given an opportunity to "create" a definition for a word and submit it to Fake Out! Student-created definitions may show up in the definition list for others to choose from.

tag(s): vocabulary (314)

#### In the Classroom

Use this site as a discussion starter for word study-- what clues can help you guess what an unknown word might mean (prefixes, suffixes, roots, etc). You can also use it to reinforce dictionary skills by having students write definitions in a credible-sounding format. Take the site one step further and have students complete activities such as creating a story with the word, using the word in a sentence, acting out the definition or drawing a picture of the word. If you have a class wiki, allow students to add favorite new words to a wiki glossary throughout the year. Teachers of gifted will love this challenge for their highly-verbal

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### Inventing Modern America: Games - Lemelson-MIT

5 to 12

Students dream about becoming an inventor. This site shows that even the smallest item in life, such as the paper clip, was once invented by 'someone.' You can ...more
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Students dream about becoming an inventor. This site shows that even the smallest item in life, such as the paper clip, was once invented by 'someone.' You can promote creativity and encourage 'thinking outside the box' through this site. Play the 'Which Came First' game at this site to see if you can guess which invention came first, especially in conjunction with a social studies class on the inventors and industrial revolution. (Warning: It's harder than you think!) Or you may opt to play the 'Invention Connection' game, a challenging activity that builds higher level thinking through attribute listing and looking for common characteristics of diverse inventions. For pure information and inspiration, click on the five featured inventors to find video footage and other information about their lives and inventions. You will need the Shockwave plug-in to play the 'Invention Connection' game.

tag(s): inventors and inventions (89)

#### In the Classroom

Use an interactive whiteboard to play the games in science class as you talk about inventions, engineering, and the inquiry process that drives them or as an interdisciplinary connection in your lessons on inventions and the Industrial Revolution.