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Modular Arithmetic Lesson	Number sense (Math 5)	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,...
Working with Place Value	Base ten, place value (Math 5)+	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,...
SMILE Mathematics Activity	Number sense (Math 5)	TI-73 Explorer	Activity		[0]
Step-by-step directions on how to use the the five SMILE Mathematics computer games: MiniMax, Box, Matching Fractions, Angle, and Rhino. More: lessons, discussions, ratings, reviews,...
Base 10 Blocks: Description an...	Base ten, place value (Math 5)	Java Applet	Lesson Plan		[2]
Description and lesson plan for the Base 10 Blocks tool, which allows students to interact with virtual base-ten blocks to work with concepts in the basic operations. Also covers applications of the t... More: lessons, discussions, ratings, reviews,...
Clock Arithmetic and Cryptogra...	Number sense (Math 5)	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,...
Working with Place Value	Base ten, place value (Math 5)+	Java Applet	Lesson Plan		[1]
Guided, interactive activities help students understand the concept of place value, using the number line, base blocks, and place value charts. Teacher information includes a list of targeted objectiv... More: lessons, discussions, ratings, reviews,...
Number Worlds: Visual and expe...	Number sense (Math 5)	Computer	Support Material		[0]
Recent research demonstrates that many issues related to the structure of natural numbers and the relationship among numbers are not well grasped. In this article, the computer-based learning environm... More: lessons, discussions, ratings, reviews,...
Clocks and Modular Arithmetic ...	Number sense (Math 5)	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 5)	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 5)	Java Applet	Support Material		[0]
A dialogue between a student and a mentor about remainders. More: lessons, discussions, ratings, reviews,...
Millions and Billions	Large numbers (Math 5)	JavaScript	Support Material		[0]
Examples and illustrations of large numbers to demonstrate that a billion is 1000 times as large as a million. More: lessons, discussions, ratings, reviews,...
Basic Algebra: About Exponents	Exponents (Math 5)	Flash	Tool	$	[0]
A Flash applet that reviews the definition of exponents, and what happens when the exponent is one or zero. College Cram charges access fees by the month or by the semester for most resources. To ... More: lessons, discussions, ratings, reviews,...
Writing Big Numbers	Base ten, place value (Math 5)+	Flash	Tool		[0]
The aim of this module is to review large numbers, practice writing numbers as words, and as a reminder of place value. The module includes factsheets, worksheets, an activity, and a game. More: lessons, discussions, ratings, reviews,...
Aritm�tica del reloj	Number sense (Math 5)	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,...
Base 10 Blocks: Exploring Othe...	Base ten, place value (Math 5)	Java Applet	Tool		[1]
Virtual base-ten blocks (that can be stuck together or broken apart into smaller units, rotated, moved around, etc.) and ideas on using them for addition, subtraction, multiplication, several algorith... More: lessons, discussions, ratings, reviews,...
Base Blocks	Base ten, place value (Math 5)+	Java Applet	Tool		[4]
Illustrate addition and subtraction in a variety of bases. More: lessons, discussions, ratings, reviews,...
Base Blocks Decimals	Base ten, place value (Math 5)	Java Applet	Tool		[1]
Add and subtract decimal values using base blocks. More: lessons, discussions, ratings, reviews,...
Caesar Cipher	Number sense (Math 5)	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 5)	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 5)	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,...
Chip Abacus	Base ten, place value (Math 5)	Java Applet	Tool		[0]
Learn about carrying and digits using chips. More: lessons, discussions, ratings, reviews,...
Clock Arithmetic	Number sense (Math 5)	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 5)	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 5)	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 5)	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,...
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