University of Illinois at Urbana-Champaign
Office for Mathematics, Science, and Technology Education
College of Education @ University of Illinois

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Number & Operations imageNumber & Operations

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Title Brief Description Category Date
Adjust the precision on this web calculator. Number & Operations 8/16/2000
Learn to count in binary, including signed notation and adding 2 binary numbers. Number & Operations 7/24/2004
A javascript applet for calculating BMI. Number & Operations 5/18/2000
Ask Nick to take a random step while he braves the edge of a cliff. Number & Operations 11/3/2005
Explore addition using visual representation rather than just an abstract concept. Number & Operations 4/20/2000
Online random flash card generator for simple math operations. Number & Operations 3/8/2000
Create and graphically visualize a floating point system. Number & Operations 3/8/2000
See how addition and subtraction work. Number & Operations 9/10/2001
Convert numbers from one base to another. Number & Operations 12/16/2005
A prime number calculator that can handle numbers up to 16 digits long Number & Operations 9/19/2007
Demonstrate the probability of two randomly chosen integers being relatively prime. Number & Operations 3/25/2002
Compare rounding and truncation. Number & Operations 8/16/2000


Title Brief Description Category Date
A lesson to accompany the "Folding a Rectangular Prism" applet Number & Operations
Use Excel to help students better understand Euclid’s Algorithm, Heron’s Algorithm, and the Estimation of pi. Number & Operations
Students will reinforce their knowledge of fractions by using online pattern block activities. Number & Operations
How many marbles will the pyramid have, if there are ten flights? Number & Operations

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