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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,...
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,...
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,...
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,...
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,...
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,...
5-Tile Jigsaw Puzzle	Number sense (Math 3)	Flash	Tool		[0]
The goal of this game is to reassemble the tiles in a square grid, in repeated numerical sequence. More: lessons, discussions, ratings, reviews,...
Bead Numbers	Place value (Math 3)	Flash	Tool		[0]
This activity uses an interactive abacus to help develop and reinforce pupils' understanding of place value. The abacus has three pegs onto which beads are dropped, representing units, tens, and hundr... 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,...
Comparing Numbers	Place value (Math 3)	Flash	Tool		[0]
This module introduces place value, place holders, comparing numbers and using the inequality signs > and < through fact sheets, worksheets, and a game. The accompanying quiz offers three levels of di... More: lessons, discussions, ratings, reviews,...
DigitWize	Place value (Math 3)	Flash	Tool		[0]
Choose integers or numbers with decimal places, then try to make up the target number by choosing numbers from the units, tens, hundreds, depending on your original choice. Available in Arabic, Bengal... More: lessons, discussions, ratings, reviews,...
Guess My Number 1-100	Number sense (Math 3)	Flash	Tool		[0]
A guessing game to find out what number the computer is thinking of. The activity can be used to develop number recognition and sequencing up to 100. More: lessons, discussions, ratings, reviews,...
Infinity	Number sense (Math 3)	Flash	Tool		[0]
In this exercise, you see a number "on the path" to infinity. If you see a larger number, that is, closer to infinity, in one of the balloons surrounding infinity, click that number, and it will take ... 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,...
Scrambler	Number sense (Math 3)	Flash	Tool		[0]
The goal of this sliding tile scrambler puzzle is to replace the tiles in the order in which they originally appeared, by rotating the rows and columns. 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,...
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