REFERENCE
The Curious History of the Gregorian Calendar
Eleven days that never were by Ben Snowden September 2, 1752, was a great day in the history of sleep. That Wednesday evening,... Read moreREFERENCE
What is this job like? Architects design houses and buildings. They plan offices and apartments. They design schools, churches,... Read more
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Teaching Mathematics to Gifted Students in a Mixed-Ability Classroom
From: The ERIC Clearinghouse on Disabilities and Gifted Education ERIC EC Digest #E594Author: Dana T. JohnsonApril... Read moreREFERENCE
The ancient Romans gave us this numbering system. We still use it today for dates on buildings, to number the front matter in... Read moreREFERENCE
A prefix is a syllable at the beginning of a word. A numerical prefix lets you know how many there are of a particular thing. Here... Read moreREFERENCE
Prime Numbers Between 1 and 1,000
2 3 5 7 11 13 17 19 2329 31 37 41 43 47 53 59 61 6771 73 79 83 89 97 101 103 107 109113 127 131 137 139 149 151 157 163 167173 179... Read more
