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Topic (Course) 
Technology 
Type 
$? 
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Types of Triangles (Acute, Obt...

Triangles (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the three types of triangle: acute, obtuse and right.
The applet shows a triangle that is initially acute (all angles less t...
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Uncovering Math with Manipulat...

General (Kindergarten)+ 
TI10 
Activity 

[0]

The activities for the TI10, designed for primary grades, build connections between physical representations and the mathematical symbolism of the calculator. Each activity consists of Teacher Pag...
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Uncovering Math with Manipulat...

General (Kindergarten)+ 
TI10 
Activity 

[1]

Designed for intermediate grades, the activities for the TI10 and the TI15 Explorer use the calculator as a datagenerating device to support exploration of mathematical ideas. Each activity cons...
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Uncovering Math with Manipulat...

General (Math 1)+ 
TI15 
Activity 

[1]

Designed for intermediate grades, the activities for the TI10 and the TI15 Explorer use the calculator as a datagenerating device to support exploration of mathematical ideas. Each activity cons...
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Undecagon  Math Open Referenc...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

The applet shows an undecagon where the user can drag any vertex to reshape it.
User can see that the interior and exterior angles are constant in a regular undecagon, but vary in an irregular ver...
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Understanding Algebraic Factor...

Factor (Math 6)+ 
Java Applet 
Lesson Plan 

[0]

Students use algebra tiles to explore algebraic factoring.
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Understanding Averages

Data collection (Math 7)+ 
Flash 
Tool 

[0]

The aim of the Understanding Averages topic area is to introduce learners to averages, calculating the mean and finding the range. Linked resources include factsheets, games, quizzes, and worksheets. ...
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Understanding Distance, Speed,...

Rates (Math 4)+ 
Java Applet 
Tool 

[72]

In this activity, students investigate how changing starting position and step size affect the graph of time versus distance.
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Understanding Experimental Pro...

Certain, likely, impossible (Math 4)+ 
Java Applet 
Tool 

[0]

Experiment with experimental probability using a fixed size section spinner, a variable section spinner, 2 regular 6sided number cubes or design your own number cubes. Appropriate for elementary grad...
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Understanding Factoring throug...

Factor (Math 6)+ 
Java Applet 
Lesson Plan 

[0]

Understanding factoring through geometry: students work cooperatively to display a numeral as the area of a rectangle, and make as many rectangular arrangements as possible for each numeral given.
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Understanding Place Value

Place value (Math 4)+ 
Java Applet 
Tool 

[0]

Users are presented with three colors of paint and each dispenser is marked with 1 gal, 10 gal, 100 gal, and 1000 gal amounts to be dispensed. The task given is to dispense a certain number of gallons...
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Understanding Ratios of Areas ...

Ratios (Math 5)+ 
Java Applet 
Tool 

[0]

Users are given an opportunity to explore an interesting quantitative relationship between the area of a polygon and the area of an inscribed figure formed by joining the midpoints of the adjacent sid...
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Understanding Sequence and Ser...

Arithmetic sequences and series (Algebra II)+ 
Flash 
Support Material 

[0]

This minilesson explains basic terminology associated with sequences, as well as the basics of arithmetic and geometric sequences.
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Understanding Summation Notati...

Arithmetic sequences and series (Algebra II)+ 
Java Applet 
Tool 

[0]

Students are given 10 problems written in summation notation. When they click, the sequence that comes from "translating" the notation is revealed. Very short exercise.
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Understanding the Least Square...

Line of Best Fit (Algebra)+ 
Java Applet 
Tool 

[2]

This tool allows users to explore three methods for measuring how well a linear model fits a set of data points.
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Unexpected Answers

Pictographs (Math 7)+ 
Java Applet 
Lesson Plan 

[0]

Considers probability problems with unexpected and surprising answers.
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Unit 5: Probability Activities...

Probability (Probability & Statistics) 
Computer 
Activity 

[0]

Eleven activities for the classroom, working with probability at the UK's GCSE level (US high school).
More: lessons, discussions, ratings, reviews,...

Unit Measurement Converters & ...

Measurement (Math 1)+ 
JavaScript 
Tool 

[0]

Converters360.com is a collection of unit converters and conversion tables along with conversion factor, ratio and formula. The converters are the tools that can transform any unit into another associ...
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Unitizing Fractions on a Grid

Writing fractions (Math 3)+ 
Flash 
Tool 

[0]

This interactive tool is one of a series of tools created by Conceptua Math that are designed for teacherfacilitated instruction. Teachers work with students using this tool to help them build conce...
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Unitizing with Pattern Blocks

Fractions (Math 2)+ 
Flash 
Tool 

[0]

This interactive tool is one of a series of tools created by Conceptua Math that are designed for teacherfacilitated instruction. Teachers work with students using this tool to help them develop ...
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Universal Gravitation Model

Param., Polar, & Vector Fcns. (Calculus)+ 
JavaScript 
Tool 

[0]

Explore how the mass of and distance between two objects affects the force between them in this simulation of Newton's Law of Universal Gravitation. Questions prompt students to examine these interact...
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Unizor  Creative Mind through...

General (Geometry)+ 
JavaScript 
Support Material 

[0]

Whiteboard lectures for teenagers on algebra, trigonometry, vectors, matrices, combinatorics, probability, and statistics. Sign in for structured study, assignment functions, and more.
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Use Triangle Sides to Find Ang...

General (Math 6)+ 
JavaScript 
Tool 

[0]

Enter triangle side lengths to find the 3 angles of a triangle.
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Use constants in mathematical ...

One Variable Equations (Algebra) 
Java Applet 
Tool 

[1]

Enter a function, then vary each of the coefficients and watch the function change.
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Using "Exponential Decay" tool...

Growth and decay applications (Algebra II) 
Java Applet 
Story 

[0]

The "Exponential Decay" Java applet was used on the discussion board with an online Algebra II course. Students were asked to use the applet, and then go to the discussion board and discuss the questi...
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