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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 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,...
Base Blocks	Place value (Math 3)	Java Applet	Tool		[7]
Illustrate addition and subtraction in a variety of bases. 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,...
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,...
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,...
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 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,...
Base Blocks Decimals	Place value (Math 3)	Java Applet	Tool		[1]
Add and subtract decimal values using base blocks. More: lessons, discussions, ratings, reviews,...
Abacus v1.4	Place value (Math 3)	Java Applet	Tool		[1]
The Abacus Java Applet/Application is an implementation of an Abacus counting machine. The machine displays a total for the number represented by the machine's current state in addition to each digits... 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,...
Base 10 Blocks: Description an...	Place value (Math 3)	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,...
Working with Place Value	Place value (Math 3)	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,...
Base 10 Blocks: Exploring Othe...	Place value (Math 3)	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,...
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,...
Cryptarithms	Place value (Math 3)	JavaScript	Tool		[1]
Cryptarithms are brain teasers obtained when digits in numerical calculations have been replaced by letters. Customarily, distinct letters stand for different digits. Another term, Alphametics, denote... More: lessons, discussions, ratings, reviews,...
Place Value	Place value (Math 3)	JavaScript	Tool		[1]
The user learns about place value. After viewing examples, users can interactively practice determining the place value of a specific digit in a given number. 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,...
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,...
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,...
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,...
Write the Correct Numbers in t...	Place value (Math 3)	Computer	Tool	$	[0]
Alterable worksheet in which students fill in blanks, adding and subtracting in powers of ten. Fee required to print: see this page. More: lessons, discussions, ratings, reviews,...
Writing Big Numbers	Place value (Math 3)	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,...
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 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,...
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