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Modular Arithmetic Lesson	Number sense (Math 3)	Java Applet	Activity	[1]
Clock (or modular) arithmetic is arithmetic you do on a clock instead of a number line. Investigate arithmetic using a 12-hour, 10-hour, and 2-hour clock. More: lessons, discussions, ratings, reviews,...
Clock Arithmetic and Cryptogra...	Number sense (Math 3)	Java Applet	Lesson Plan	[2]
The following discussions and activities are designed to lead the students to practice their basic arithmetic skills by learning about clock arithmetic (aka modular arithmetic) and cryptography. More: lessons, discussions, ratings, reviews,...
Clocks and Modular Arithmetic ...	Number sense (Math 3)	Java Applet	Support Material	[0]
A dialogue between a student and a mentor on the relationship between clocks and modular arithmetic. More: lessons, discussions, ratings, reviews,...
Cryptography and Ciphers Dialo...	Number sense (Math 3)	Java Applet	Support Material	[0]
A dialogue between a student and a mentor on the relationship between cryptography and ciphers. More: lessons, discussions, ratings, reviews,...
What are Remainders Dialogue	Number sense (Math 3)	Java Applet	Support Material	[0]
A dialogue between a student and a mentor about remainders. More: lessons, discussions, ratings, reviews,...
Compare Numbers	Number sense (Math 3)	Flash	Tool	[0]
Compare number size and place the greater or less than sign in the correct place. Use your choice of three levels of numbers to 100, 1000, or to 10000. More: lessons, discussions, ratings, reviews,...
Number Grid Level 1	Number sense (Math 3)	Flash	Tool	[1]
First level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a change... More: lessons, discussions, ratings, reviews,...
Number Grid Level 2	Number sense (Math 3)	Flash	Tool	[3]
Second level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a chang... More: lessons, discussions, ratings, reviews,...
Number Grid Level 3	Number sense (Math 3)	Flash	Tool	[1]
Third level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a change... More: lessons, discussions, ratings, reviews,...
Number Grid Level 4	Number sense (Math 3)	Flash	Tool	[1]
Fourth level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a chang... More: lessons, discussions, ratings, reviews,...
Number Grid Level 5	Number sense (Math 3)	Flash	Tool	[4]
Fifth level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a change... More: lessons, discussions, ratings, reviews,...
Number Puzzle	Number sense (Math 3)	Flash	Tool	[0]
Change the numbers in the blocks at the bottom of the pyramids and explore the effect on the number in the top block. What's the highest total you can get using the numbers 1 to 5 only once? More: lessons, discussions, ratings, reviews,...
Number Track	Number sense (Math 3)	Flash	Tool	[0]
Place the number tiles into the correct order on the track. There are three levels of difficulty, with an option to make your own number track arrangements. More: lessons, discussions, ratings, reviews,...
The 4 Digit Sequencer	Number sense (Math 3)	Flash	Tool	[0]
Given a starting number and step size, this sequencer challenges students to deduce the terms of a sequence by viewing subsets of the pattern. The sequencer allows for the input of four-digit and nega... More: lessons, discussions, ratings, reviews,...
Wash Line	Number sense (Math 3)	Flash	Tool	[0]
Hang the numbered shirts on the line in order. Order a mixed set of numbers with up to three decimal places. More: lessons, discussions, ratings, reviews,...
Aritm�tica del reloj	Number sense (Math 3)	Java Applet	Tool	[0]
Los estudiantes aprenden operaciones de aritm�tica modular trabajando con diferentes tipos de relojes. Par�metros: N�mero de horas en el reloj. versi�n en ingl�s More: lessons, discussions, ratings, reviews,...
Caesar Cipher	Number sense (Math 3)	Java Applet	Tool	[0]
Students practice simple arithmetic skills by encoding and decoding messages using an affine cipher. Spanish version also available. More: lessons, discussions, ratings, reviews,...
Caesar Cipher II	Number sense (Math 3)	Java Applet	Tool	[0]
Students practice simple arithmetic skills by encoding and decoding messages to determine the form for an affine cipher. Spanish version also available. More: lessons, discussions, ratings, reviews,...
Caesar Cipher III	Number sense (Math 3)	Java Applet	Tool	[0]
Students practice their reasoning and arithmetic skills by decoding messages to determine the form for an affine cipher. Spanish version also available. More: lessons, discussions, ratings, reviews,...
Clock Arithmetic	Number sense (Math 3)	Java Applet	Tool	[1]
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,...
Clock Arithmetic on a 10-hour ...	Number sense (Math 3)	Java Applet	Tool	[0]
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,...
Clock Arithmetic on a 12-hour ...	Number sense (Math 3)	Java Applet	Tool	[0]
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,...
Clock Arithmetic on a 2-hour c...	Number sense (Math 3)	Java Applet	Tool	[0]
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,...
El cifrado de C�sar	Number sense (Math 3)	Java Applet	Tool	[0]
Los estudiantes practican aritm�tica sencilla codificando y decodificando mensajes mediante un cifrado af�n. versi�n en ingl�s More: lessons, discussions, ratings, reviews,...
El cifrado de C�sar II	Number sense (Math 3)	Java Applet	Tool	[0]
Los estudiantes practican aritm�tica sencilla codificando y decodificando mensajes para determinar la forma de un cifrado af�n. versi�n en ingl�s More: lessons, discussions, ratings, reviews,...
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