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Order of operations (Math 4) 
Calculator 
Activity 

[2]

Calculator activity involving order of operations.
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A Fractals Unit for Elementary...

Fractals (Math 4) 
Computer 
Activity 

[1]

A teaching unit on fractals for students and teachers in grades 4 to 8, that adults are free to enjoy, designed to introduce students to fractals and the underlying mathematics. It focuses on fractals...
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Instant Solution of a Maze

Geometry in the plane (Math 4) 
Computer 
Activity 

[2]

A quick way to find solutions to complicated mazes. The author writes: "While doing a maze activity with a group of elementary school homeschoolers, I started exploring mazes as systems of walls rathe...
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Number Sequences: III

Addition (Math 4)+ 
Computer 
Activity 
$ 
[1]

Alterable worksheet in which students fill in the missing numbers in sequences, counting forwards and backwards in 6's, 7's, 8's, 9's, 10's, 11's, 15's, 19's, 21's, and 25's. Fee required to print; s...
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Using Kali

Symmetry (Math 4) 
Computer 
Activity 

[2]

An exercise (in English and Spanish) in using an interactive 2D Euclidean symmetry pattern editor. This activity was originally written as one of the stations in Frisbie Middle School's Multicultural ...
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Bead Numbers

Place value (Math 4) 
Flash 
Activity 

[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...
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MathThink  Activity Dice Diff...

Probability (Math 4) 
Flash 
Activity 

[1]

This an applet for determining the expectation of winning if differences of 5, 4, 3, 2, and 1 are used to set up a dice game. For instance, if Player A has 1, 2, and 3 as differences, does he have an ...
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Bricks Activity

Patterns and sequences (Math 4)+ 
Java Applet 
Activity 

[0]

Student page for the classroom activity (also called the Masonry Problem; a variation on polyominoes) to be explored through manipulatives (dominoes). Students explore different possibilities of makin...
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Construct a Solid

Recognize shapes in 3D (Math 4) 
Java Applet 
Activity 

[2]

The fourth of five activities for use with the "Exploring Geometric Solids and Their Properties" tool from NCTM.
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Domino Activity

Patterns and sequences (Math 4)+ 
Java Applet 
Activity 

[0]

Student page for the classroom activity (similar to Pentomino + 1 = Hexomino; a variation on polyominoes) to be explored through manipulatives (paper dominoes). Students explore whether it is possible...
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Fish Farm Problem

Ratios (Math 4) 
Java Applet 
Activity 

[1]

Depending on the student's approach to this problem, many types of math can be incorporated to solve this problem. The concept of ratio is used throughout, and students can solve the problem by experi...
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Fractals: Koch Snowflake

Fractals (Math 4) 
Java Applet 
Activity 

[1]

This activity shows how to make the Koch Snowflake fractal handson, stepbystep by using triangle grid paper which is provided.
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Fractals: Sierpinski Triangle

Fractals (Math 4) 
Java Applet 
Activity 

[1]

This activity shows how to make a Sierpinski Triangle handson, stepbystep by using triangle grid paper which is provided.
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Fraction Concepts

Writing fractions (Math 4)+ 
Java Applet 
Activity 

[3]

These interactive activities develop the concept of fractions as parts of a whole, and provide practice in writing and comparing fractions. The activities prompt students to answer questions by fillin...
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Fraction Darts

Fractions (Math 4) 
Java Applet 
Activity 

[1]

Fraction Darts is a Microworlds Applet activity that challenges students to pop a balloon situated on a number line from 0 to 1 by throwing fractional darts. The student sets a numerator and denomi...
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Fractris Problem

Adding fractions (Math 4) 
Java Applet 
Activity 

[0]

This problem deals with basic addition of fractions. However, some of the questions also encourage students to investigate different ways to get the fractions to add up to 1. By multiplying all the fr...
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Galactic Exchange Problem

Ratio and proportion (Math 4) 
Java Applet 
Activity 

[0]

This problem allows students to investigate ratio and proportion, by discovering the exchange rate between different alien currencies (i.e. 7 circles have the same value as 3 triangles, etc.) By manip...
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Getting to Know the Shapes

Recognize shapes in 3D (Math 4) 
Java Applet 
Activity 

[2]

The first of five activities for use with the "Exploring Geometric Solids and Their Properties" tool from NCTM.
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I Took a Trip on a Train

Geometry in space (Math 4) 
Java Applet 
Activity 

[3]

Visualization activitygiven a map and different photos, identify location of photographer.
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Leonardo da Vinci Activity

Algebra (Math 4)+ 
Java Applet 
Activity 

[0]

Students answer the question: Is the ratio of our arm span to our height really equal to 1? If an emphasis is given to a/h = 1, this can be an engaging activity using variables. Use a spreadsheet to w...
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Lo Shu Magic Square

Operations with numbers (Math 4) 
Java Applet 
Activity 

[0]

Magic squares have been around for over 3,000 years. They are descendants of the oldest known number mystery, the legend of Lo Shu, found in China in a book entitled Yih King.
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Locker Problem Activity

Patterns and sequences (Math 4)+ 
Java Applet 
Activity 

[1]

A classroom activity (also called 1000 Lockers) to be explored through the use of manipulatives and a ClarisWorks spreadsheet. Students then look for patterns and write the answer algebraically.
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Make a Shape Jacket

Recognize shapes in 3D (Math 4) 
Java Applet 
Activity 

[2]

The fifth of five activities for use with the "Exploring Geometric Solids and Their Properties" tool from NCTM.
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Modular Arithmetic Lesson

Operations with numbers (Math 4)+ 
Java Applet 
Activity 

[1]

Clock (or modular) arithmetic is arithmetic you do on a clock instead of a number line. Investigate arithmetic using a 12hour, 10hour, and 2hour clock.
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Mosaic Problem

Adding fractions (Math 4) 
Java Applet 
Activity 

[0]

This problem deals with basic addition of fractions. In addition, the second question brings up basic ideas of calculus, i.e. using smaller and smaller rectangles to approximate an irregular shape. Th...
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