Children deserve Indian maths!

It's superior to western maths!

Please share the petition @ https://t.co/5VYOqKBeJN with friends & retweet to your followers. Want the evidence / proof?

Slides @ https://t.co/WHQsWg64Z7

PDF @ https://t.co/RkvfHrsy6i

Click https://t.co/5VYOqKBeJN https://t.co/rdNPxYH7EL pic.twitter.com/b1ATEapwTy— ➕➖➗✖️ (@jcrabtree) January 12, 2020

##### Representations of Negative and Positive Quantities on a ‘Brahmaguptan Plane’ for India’s Primary Classes

**ABOUT**

Having initially studied economics at the University of Melbourne, Jonathan J. Crabtree is an autodidact, studying the history of mathematics since 1983.

His first paper was on the history of Euclid’s definition of multiplication ¹ whilst his next paper explored the writings of Descartes and Newton ². Another paper presented in Hungary ³ spanned the writings of Diophantus, Cardano, Euclid, Liu Hui and Brahmagupta.

Having reviewed original writings in Latin, Greek, Arabic and Sanskrit, Crabtree has also written magazine articles on mathematics history ⁴ and been a guest lecturer on the history of zero at Indian universities ⁵.

**FUN FACT**

In 1968 at age 7 in Grade 2, Jonathan J. Crabtree noticed Euclid's definition of multiplication made no sense. Two added to itself three times is 8, not 6, as people have said for centuries. (HINT 2 added to itself once is 4.) Jonathan went on to explore hundreds of original source mathematics books & manuscripts spanning 16 languages. Euclid's definition of multiplication had been incorrectly translated into English in 1570 and was NEVER corrected!

**ARTICLES & PAPERS: Oldest to Newest**

* - A new reason negative multiplied by negative is positive *Jonathan J Crabtree 2015 Vinculum 52 (3), 20

*Jonathan J Crabtree 2016 Vinculum 53 (2), 16-18, 21*

**- A new model of multiplication via Euclid***(i.e. via rope & straightedge) Jonathan J Crabtree 2016 Vinculum 53 (4), 7-9*

**- Squaring the circle: A practical approach***Jonathan J Crabtree 2016 Mathematical Association of Victoria (MAV) Annual Conference 53, 98-106*

**- The Lost Logic of Elementary Mathematics and the Haberdasher who Kidnapped Kaizen***Jonathan J Crabtree 2017 Challenges in Mathematics Education for the Next Decade. 14th International Conference of The Mathematics Education for the Future Project - Hungary.*

**- Fun in Podo’s Paddock: New Ways of Teaching Children the Laws of Sign for Multiplication and Division (and more!)***Jonathan J Crabtree 2017 Proceedings of the 26th Biennial Conference of the Australian Association of Mathematics Teachers.*

**- How mathematics teachers can explain multiplication and division in the manner of René Descartes and Isaac Newton.***Jonathan J Crabtree*

**- Representations of Negative and Positive Quantities on a ‘Brahmaguptan Plane’ for India’s Primary Classes.**-

Jonathan's

**paper**and

**conference presentation**titled,

**reveals when why and how western mathematics education came to be filled with mis-truths, contradictions and inconsistencies.**

*The Lost Logic of Elementary Mathematics*1. Presented for and published 2016 in the Australian Proceedings of the Mathematical Association of Victoria (MAV) Annual Conference (double-blind reviewed).

2. Presented for and published 2017 in the Proceedings of the 26th Biennial Conference of the Australian Association of Mathematics Teachers.

3. Presented for and published 2017 by the 14th International Conference of the Mathematics Education for the Future Project.

4. Vinculum Magazine, published by the MAV (Mathematical Association of Victoria).

5. Jadavpur University Kolkata 2018 and Visva-Bharati University Santiniketan 2019.

## Recent Posts

- Brahmagupta's 18 Maths Sutras/Laws Missing!
- Petition to Teach Superior Zero-Based Maths @ 8000 Signatures
- India's Maths for Indian Children!
- Happy memories from Indian Maths Tour #3
- Free Gift for National Mathematics Day India 2018
- MISSING! Brahmagupta’s 18 Indian Laws of Maths
- Relaunching Indian Maths! (News & Interviews)
- Dear India, I'm visiting you to relaunch maths!
- Mathematics Education for the Future
- How to Rebuild Maths from Zero (Free Video)
- REGENESIS: Recompiling Math via Indian Logic
- Answer this. If 1⁰ = 1 and 1¹ = 1 does 0 = 1?
- Success Secrets for Teachers via China & India
- Fixing Flaws in Elementary Mathematics Teaching
- Missed math revealed! (Multiplication & Division)
- Multiplication via Descartes & Newton (Free Slides)
- The Lost Logic of Elementary Math
- Greening the Elementary Integer Math Matrix
- Saving Aha Moments from my Necktop Computer
- Multiplication ≠ Repeated Addition: Myth Busted!
- Reactions to my Mathematics Lessons, A-Z
- Questions to Santa about Multiplication
- Goldbach Conjecture FALSE for Big Numbers
- New Lattice/Gelosia Multiplication Template
- Multiplication after the War of Independence
- Multiplication – Addition = Keith Devlin
- Errata in the Multiplication/Exponentiation Data
- Truths of Math Mocked...
- Multiplication, in Italian, German & French
- MIRA IS DEAD! (Long Live PCV.)
- How al-Khwarizmi multiplied and divided fractions
- Ramanujan was wrong... 0/0 and the SCAM
- Pythagoras in the Chinese Chou Pei Suan Ching
- The first printed edition of Euclid's Elements
- Isaac Barrow's pocket size Elements of Euclid
- Versions of Euclid's multiplication definition
- How to memorise the world's largest known prime!
- A Radical '123' proposal for Real Numbers
- How to square a circle with peg & rope.
- Did Thales teach Pythagoras this?
- Theodorus of Cyrene, Pythagoras & Podo at Play!
- Why is negative left of zero & positive right?
- Why Positive Reals have 2 square roots
- The Financial 'Times Tables' on the Cartesian Plane
- Weirder than Weird Multiplication? Weird Division!
- Proofs for Multiplication on the Reals with a Circle
- The Master Key that Unlocks Science
- A proof ab = a added to itself b – 1 times
- 1565 Pierre Forcadel on Euclid's Multiplication
- 1555 Johann Scheubelon on Euclid's Multiplication
- 1543 Niccolo Tartaglia on Euclid's Multiplication
- Subtracting addition from multiplication...
- Why do numbers exist?
- The Oldest Manuscript of Euclid’s Elements 888CE
- Exponentiation as Repeated Multiplication

Hi Jonathan,

As an Indian , I share your concerns. In order to get Indian Government, you need no less than a mass movement. Please do not lose patience and let us as individual contributors know how best we can help.

Again kudos to your single handed efforts.

Thanks for the mission

I watched you on sangam talks channel!!!

Would love to read and spread your research and suggestions. Many thanks!

Hi Jonathan,

I came accross your details n mission about Indian Mathematicians just now.

Will go through the available literature n videos in comind days.

I am retired Associate Professor in undergraduate college affiliated to Mumbai University,India.

I feel strongly to quote the name of Dr.S.S.Shrikhande,former HOD,Maths deptt.Mumbai Univ.,a legend combinatorial,who disproved Euler's conjecture,long ago in USA n has recently expired at 102.I was selected by team of 6 HOD,in 1971,n was awardee of National Scholarship UGC,for my M.Sc.1971-73.

I have 37 yrs' teaching maths,stat,at undergraduate level.I try to update myself in several ways to make maths know to all in all fields.

I wish your mission a great success n wish you a long healthy life to work in maths.Thank you.

Sanjay B.Kulkarni,

sbkulkarni2751@gmail.com

Thank you sir for understanding the importance of Indian mathematics . I'm vary intrested in mathematics.

One again thank you sir .

Hii Jonathan,

I appreciate your efforts to INDIAN I hope INDIAN Government understand this And i want to help you.

Please Tell How Can I Help You!