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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 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,...
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,...
El cifrado de C�sar III	Number sense (Math 3)	Java Applet	Tool	[0]
Los estudiantes practican sus habilidades matem�ticas y de razonamiento mediante la decodificaci�n de mensajes para determinar la forma de un cifrado af�n. versi�n en ingl�s More: lessons, discussions, ratings, reviews,...
Manny's Rumba	Number sense (Math 3)	Shockwave	Tool	[1]
Given a target number in the form of an equation "Make x = (number) blocks," move the base ten blocks (ones or tens) to the area showing the target number. More: lessons, discussions, ratings, reviews,...
Working with Place Value	Place value (Math 3)	Java Applet	Activity	[1]
Guided, interactive activities help students understand the concept of place value, using the number line, base blocks, and place value charts. More: lessons, discussions, ratings, reviews,...
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