Learning Objects Authored

• Numerical Curiosities: Part 2

  By Jeganathan Sriskandarajah

  In part 2 of this series, learners follow the steps of the “mathemagician” to examine these numerical curiosities: The 189 Challenge; An Armstrong Number: What’s Special About 153? Is 495 Different or Indifferent? Is 6174 Different or Indifferent? It is always 618, and Beginning and Ending the Same.

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• Numerical Curiosities: Part 3

  By Jeganathan Sriskandarajah

  In this interactive object, part 3 in a series, learners follow the steps of the “mathemagician” to examine four numerical curiosities: What’s Special About 1089, Perfect Squares: 1089 and 9801, The Mathematical Significance of 1776, and The Calculator Number Game. The learner will also study six number patterns and look at one remarkable table. Immediate feedback is provided.

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• Numerical Curiosities: Part 4

  By Jeganathan Sriskandarajah

  In this fourth part in a series, learners follow the steps of the “mathemagician” to examine three numerical curiosities: Be a Psychic by Predicting Birthdays, Predict a Card with Mind Reading, and Predict the Three Die Values Your Opponent Has Rolled. Learners will also study palindromic numbers and look at two alphametric puzzles.

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• Recreational Mathematics: Palindromes in Mathematics and the Search for Patterns

  By Jeganathan Sriskandarajah

  Users study a chart containing numbers 1 to 99 and look for trivial palindromes as well as double and triple iteration palindromes. The reverse and add technique is demonstrated.

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• Welcome to the World of Prime Numbers

  By Jeganathan Sriskandarajah

  In this learning activity you'll use a chart and a calculator to find prime numbers 1 and 100.

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