Day 14 of High School in Five Months, Arabic Numerals, and mass transit?

Could we have transportation, public or otherwise, without a numbering system that allows us to calculate precise locations?  Decimal numbers, based on Arabic numerals, give us both precision and the ability, thanks to our positional numeral system, to express any number in fairly limited space (just try writing 10 billion in Roman Numerals!).  Our numbers, or rather, the symbols that we use to represent numbers, come from India via the Arabs, during the Middle Ages (“… up to the end of the fifteenth century“).  Any advocate for a democratic movement must both learn and share an understanding of number as system and statistic(s), for democracy to work well (there is also a need for good mass transit used by the middle classes, for a democracy to work well, but that is for another post, if you’d like):

Day14/67 Lesson Plan
Grammar online worksheets to choose from easy/medium/hard, Khan Academy
Estimating online worksheet, Part 1
Khan Academy online worksheet for Estimating, part 2


(Day 13Day 15 )

Action Items:

1.) Find three different sources describing the source of our current numbering system/symbols,

2.) Share your  findings with us, and, if you are more curious, tell us whether the Maya, the Aztec, or the Inca had a positional numeral system.

3.) Write a book, story, blog post or tweet that uses those findings, and then, please tell us about it! If you write a book, once it is published please consider donating a copy to your local public library.

Dear Readers, ideas on learning, especially multiple #LanguageLearning, on-going education and empathy-building, to #EndPoverty, #EndHomelessness,  #EndMoneyBail & achieve freedom for All HumanKind

Support our key #PublicDomainInfrastructure  & #StopSmoking for CCOVID-19:
1. #PublicLibraries,
2. #ProBono legal aid and Education,
3. #UniversalHealthCare, and
4. good #publictransport
Read, Write -one can add Stayed on Freedom’s Call via this GR button:

Stayed on Freedom's Call: Cooperation Between Jewish And African-American Communities In Washington, DC,

Vote, Teach and Learn (Lesson Plan Book)

Nih sakh sh’lekk, sleem wa.

and my Babylon 5 review posts, if you like Science Fiction,
a proposed Vision on Wondering Wednesdays: for a kinder world…

Shira Destinie A. Jones, MPhil

our year 2020 CE =  12020 HE

(Day 1Day 5)

Stayed on Freedom’s Call
(free copies at:…)
includes two ‘imagination-rich’ walking tours, with songs, of Washington, DC. New interviews and research are woven into stories of old struggles shared by both the Jewish and African-American communities in the capital city.

Shared histories are explored from a new perspective of cultural parallels and parallel institution-building which brought the two communities together culturally and historically.

Please leave a review, if you can, on the GoodReads page.


4 thoughts on “Day 14 of High School in Five Months, Arabic Numerals, and mass transit?

  1. Interesting point about numbers. I’ve always been fascinated by them. In fact, my lady calls me a baseball statistics geek. But, now I can reference you and say—these numbers are NECESSARY. Thanks, Shira!

    Liked by 3 people

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