Browsing: All Content in Math 4 for Operations with numbers  Browse discussions |
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Resource Name |
Topic (Course) |
Technology |
Type |
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Rating |
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Circle 21
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Addition (Math 4) |
Java Applet |
Tool |
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 [1]
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A puzzle involving adding positive and negative integers to sum to twenty one.
More: lessons, discussions, ratings, reviews,...
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Circle 99
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Addition (Math 4) |
Java Applet |
Tool |
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 [0]
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A puzzle involving adding positive and negative integers to sum to ninety nine.
More: lessons, discussions, ratings, reviews,...
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Clock Arithmetic
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[1]
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Students learn about modular arithmetic operations through working with various types of clocks. Parameters: Number of hours on the clock.
Spanish version also available.
More: lessons, discussions, ratings, reviews,...
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Clock Arithmetic on a 10-hour ...
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[0]
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On a 10-hour clock, there are only 10 numbers in the whole number system. However, every number has lots of different names. For example, the number before 1 is 0, so 10 = 0 on a 10-hour clock.
More: lessons, discussions, ratings, reviews,...
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Clock Arithmetic on a 12-hour ...
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[0]
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On a 12-hour clock, there are only 12 numbers in the whole number system. However, every number has lots of different names. For example, the number before 1 is 0, so 12 = 0 on a 12-hour clock.
More: lessons, discussions, ratings, reviews,...
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Clock Arithmetic on a 2-hour c...
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[0]
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On a 2-hour clock, there are only 2 numbers in the whole number system. However, every number has lots of different names. For example, the number before 1 is 0, so 2 = 0 on a 2-hour clock.
More: lessons, discussions, ratings, reviews,...
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Color Chips - Addition
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Addition (Math 4) |
Java Applet |
Tool |
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[1]
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This virtual manipulative uses plus-minus chips to demonstrate adding positive and negative values.
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Color Chips - Subtraction
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Subtraction (Math 4) |
Java Applet |
Tool |
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[0]
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This virtual manipulative uses plus-minus chips to demonstrate that subtracting values is the same as adding negative values.
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Comparison Estimator
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Estimation (Math 4) |
Java Applet |
Tool |
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[1]
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Practice estimation skills by comparing two sets of objects, lengths, or areas. Parameters include: error tolerance.
Spanish version also available.
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Diffy
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Subtraction (Math 4) |
Java Applet |
Tool |
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 [1]
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Solve an interesting puzzle involving the differences of given numbers.
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Egyptian Multiplication
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Multiplication (Math 4) |
Java Applet |
Tool |
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[0]
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The Egyptian Multiplication algorithm. Offers a meaningful way to practice addition, subtraction and doubling of integers. Demonstrates an interplay between the decimal and binary systems.
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El cifrado de César
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[0]
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Los estudiantes practican aritmética sencilla codificando y decodificando mensajes mediante un cifrado afín.
versión en inglés
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El cifrado de César II
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[0]
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Los estudiantes practican aritmética sencilla codificando y decodificando mensajes para determinar la forma de un cifrado afín.
versión en inglés
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El cifrado de César III
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[0]
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Los estudiantes practican sus habilidades matemáticas y de razonamiento mediante la decodificación de mensajes para determinar la forma de un cifrado afín.
versión en inglés
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Electronic Abacus Applet
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[0]
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This applet explores the use of an abacus model for representing numbers and for performing addition.
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Estimador
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Estimation (Math 4) |
Java Applet |
Tool |
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[0]
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Para practicar habilidades de estimación determinando el número de objetos, longitud o área. Parámetros: tolerancia de error.
versión en inglés
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Estimador cuatro
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Estimation (Math 4) |
Java Applet |
Tool |
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[0]
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Un juego como Fracción Cuatro, pero el Estimador le pide al jugador que calcule la respuesta dentro de un límite de tiempo dado. Parámetros: límite de tiempo, tolerancia de error, nivel de dificult...
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Estimador de comparaciones
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Estimation (Math 4) |
Java Applet |
Tool |
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[0]
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Similar al Estimador pero compara dos conjuntos de objetos.
versión en inglés
More: lessons, discussions, ratings, reviews,...
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Estimador de mayor o menor
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Estimation (Math 4) |
Java Applet |
Tool |
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[0]
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Similar a la actividad de Estimador pero da una cantidad y pide al usuario que estime si el grupo de objetos es mayor o menor al número dado.
versión en inglés
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Estimator
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Estimation (Math 4) |
Java Applet |
Tool |
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[0]
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Practice estimation skills by determining the number of objects, length, or area. Parameters include: error tolerance.
Spanish version also available.
More: lessons, discussions, ratings, reviews,...
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Estimator Four
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Estimation (Math 4) |
Java Applet |
Tool |
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[0]
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A game that asks the players to estimate an answer within a given time span. Parameters include: time limit, error tolerance, difficulty level.
Spanish version also available.
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Flash Card applet
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Operations with numbers (Math 4) |
Java Applet |
Tool |
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[0]
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Flash Card applet. Enter the answer, hit "Return".
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Flash Cards
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Addition (Math 4)+ |
Java Applet |
Tool |
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[1]
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This applet produces random math problems and tracks the number of correct answers that are given.
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Lattice Multiplication
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Multiplication (Math 4) |
Java Applet |
Tool |
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[0]
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Graphical demonstration of the lattice multiplication algorithm. The numbers are easily modifiable with the mouse. The tool helps users understand the source of a "carry" and the entailed action.
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Long multiplication
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Multiplication (Math 4) |
Java Applet |
Tool |
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[0]
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A Java applet presents multiplication of two numbers in a standard, long form. Options include displaying and removing trailing zeros and skipping a product by a zero digit. Both numbers are easily mo...
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