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Interactivate: Fraction Four

Fraction Four: Students play a generalized version of connect four, gaining the chance to place a piece after simplifying fractions, converting fractions to decimals and percentages, and answering algebra questions involving fractions. Choose difficulty level, question types, and time. Fraction Four is one of the Interactivate assessment games.

On a mission to transform learning through computational thinking, Shodor is dedicated to the reform and improvement of mathematics and science education through student enrichment, faculty enhancement, and interactive curriculum development at all levels. Student development of numerical models and simulations integrated with core curriculum provides an opportunity to gain practical experience in computational science. Additionally, the National Computational Science Institute (NCSI) provides nation-wide workshops portraying resources and instructional ideas to middle school, high school, and undergraduate instructors for use in the classroom. Resources and materials offered to these instructors are available free of charge from Shodor's website and are largely developed by Shodor student interns. Shodor's academic program efficiently guides participants from excitement to experience to expertise through computational explorations, research opportunities, and service.

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Interactivate: Fraction Four On a mission to transform learning through computational thinking, Shodor is dedicated to the reform and improvement of mathematics and science education through student enrichment, faculty enhancement, and interactive curriculum development at all levels. Student development of numerical models and simulations integrated with core curriculum provides an opportunity to gain practical experience in computational science.

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Can you draw your polygon? Maybe you know the coordinates, or lengths and angles,
either way this can give you a good estimate of the Area.
Note: due to computer rounding errors the last digit is not always correct.

Edit

Use the "Edit" button to manually edit the coordinates, or to enter new coordinates of your own.

What is Regular, Concave, Complex?

When all angles are equal and all sides are equal it is regular, otherwise it is irregular

When any internal angle is greater than 180° (it points inwards) it is concave. ( Think: concave has a "cave" in it), otherwise it is convex.

When the boundary crosses over (so the polygon intersects itself) it is complex, otherwise it is simple like most polygons we deal with. Many rules about polygons don't work when they are complex.

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Can you draw your polygon? Maybe you know the coordinates, or lengths and angles, either way this can give you a good estimate of the Area. Note: due to computer rounding errors the last digit is not always correct. Use the "Edit" button to manually edit the coordinates, or to enter new coordinates of your own.

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Estimation - visualize angle sizes

Common Core Connection for 4th Grade

Recognize angles as geometric shapes formed wherever 2 rays share a common endpoint.
Understand concepts of angle measurement.
Measure angles in whole-number degrees using a protractor.

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Play Alien Angles at MathPlayground.com! Estimate each angle. Compare your estimate with a protractor.

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- A game for developing your angle intuition

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Interactivate: Maze Game

Maze Game: Investigate the Cartesian coordinate system by directing a robot through a mine field laid out on the plane. Maze Game is one of the Interactivate assessment explorers.

On a mission to transform learning through computational thinking, Shodor is dedicated to the reform and improvement of mathematics and science education through student enrichment, faculty enhancement, and interactive curriculum development at all levels. Student development of numerical models and simulations integrated with core curriculum provides an opportunity to gain practical experience in computational science. Additionally, the National Computational Science Institute (NCSI) provides nation-wide workshops portraying resources and instructional ideas to middle school, high school, and undergraduate instructors for use in the classroom. Resources and materials offered to these instructors are available free of charge from Shodor's website and are largely developed by Shodor student interns. Shodor's academic program efficiently guides participants from excitement to experience to expertise through computational explorations, research opportunities, and service.

We're sorry!

We have detected JavaScript as being disabled in your browser.

The links below provide instructions for enabling JavaScript dependent on your browser.

Mozilla Firefox Users
Internet Explorer Users
Safari Users

After enabling JavaScript, refresh the page.
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Interactivate: Maze Game On a mission to transform learning through computational thinking, Shodor is dedicated to the reform and improvement of mathematics and science education through student enrichment, faculty enhancement, and interactive curriculum development at all levels. Student development of numerical models and simulations integrated with core curriculum provides an opportunity to gain practical experience in computational science.

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Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

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To get four squares in a row-vertically, horizontally, or diagonally.

How to Play

1. To begin the game, Player 1 moves a marker (green square) to a number in the factor list of numbers 1-9 along the bottom of the game screen.

2. Player 2 then moves the other marker (green square) to any number in the factor list (including the number marked by Player 1). The product of the two marked numbers is determined, and that product is colored red for Player 2.

3. Player 1 moves either marker to another number, and the new product is colored blue for Player 1.

4. Players take turns moving a marker, and each product is marked red or blue, depending on which player made the product. However, if a product is already colored, the player does not get a square for that turn.

5. Play continues until one player wins, or until all squares have been colored.

Credit

This Product Game Investigation was adapted with permission and guidance from Prime Time: Factors and Multiples, Connected Mathematics Project, G. Lappan, J. Fey, W Fitzgerald, S. Friel and E. Phillips, Dale Seymour Publications (1996), pp. 17‑25.

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This applet is the Product Game: a fun, interactive game that exercises your skill with factors and multiples.

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(use level 2 difficulty)

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