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#algebra

Joseph J Rotman (1995)

citing Robert Recorde (1557), Johann Rann (1659), William Oughtred (1631), Johannes Widman (1486), James Hume (1636), and François Viète (1591)

Revolutionary events were changing Europe in the early 1500’s: the printing press; Asian trade; American exploration; the Reformation.

The Italian peninsula was not one country but a collection of city-states with many wealthy and cosmopolitan traders.

Modern algebraic notation did not exist at this time. Designating variables by letters was invented by Viète in 1591. (He used consonants for constants and vowels for variables.)

Writing superscript for repeated multiplication is due to James Hume—in 1636 he used A, A, A, ….

Even +, –, and √ were new, having been introduced in 1486 by Johannes Widman. × was introduced by William Oughtred in 1631 and ÷ by Johann Rann in 1659.

Our «equals symbol» = was introduced by Robert Recorde in 1557, in his Whetstone of Witte:

And to avoide the tediouse repetition of these woordes: is equal to: I will lette as I doe often in woorke use, a paire of paralleles, or gemowe lines of one lengthe, thus: ═, because noe 2 thynges, can be moare equalle.

(gemowe is an obsolete word meaning twin or, in this case, parallel.)

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Can someone please explain to me why someone that hates math, had to take extra help with math in middle school, doesn’t care a ton about school, does drugs, doesn’t do the work if they don’t want to, would put themselves in an HONORS math class that will be filled with kids from the grade below them? Can someone please explain????????????????

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«Francesco domina il calcolo algebrico in maniera eccezionale rispetto alla sua età e non ha paura di farsi domande e provare a darsi risposte — racconta —. Un giorno mi si è avvicinato con dei fogli dicendomi che per risolvere il problema bastava la formula che aveva trovato. Ci aveva lavorato una settimana. E io: “Ma Francesco, io questa non l'ho mai vista!”»

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recuerdas como se saca la raíz cuadrada o te has olvidado?
El video completo lo puedes ver en youtube en el canal EL INCA MATEMÁTICO
Aquí :
https://youtu.be/jB3WD2__QBE
#matematica #algebra #razonamiento #ciencia #lima#perú
#habilidad #investigación #científico (en San Martín De Porres, Lima, Peru)
https://www.instagram.com/p/CAgcSmel5YY/?igshid=hyrli6vnstlt

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Pierpaolo Muscharello Algorismus (On Algebra) Nola, 1478; scribe: Pierpaolo Muscharello (colophon, fol. 101r) University of Pennsylvania, Lawrence J. Schoenberg Collection, LJS 27 Pierpaolo Muscharello Algorismus (On Algebra) Nola, 1478; scribe: Pierpaolo Muscharello (colophon, fol. 101r) University of Pennsylvania, Lawrence J. Schoenberg Collection, LJS 27

kislak-center
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05.16.2020

barely turned in my algebra ii quiz in on time (oops). i’ve got my lifeguard certification tests on tuesday, and another final on wednesday!

𝅘𝅥𝅮 regret you by holychild

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So, I was looking through some files and things and I found some notes/explanations that I used when I started tutoring some kids a while back (fairly recent actually, their school isn’t doing their job). I thought it might help some other people so… here ya go!

Sorry about my messy handwriting, by the way.

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Quarantine 2020 Studyblr Challenge |Week 1: Questions (5-13-2020)

Link to most recent post as of now: https://myhoneststudyblr.tumblr.com/post/618026396698247168

Mon - Have you made a study schedule to help you study at home?

I have, but only for Algebra II and Precalculus so far, as prep for my next semester!

Tue - How are you being taught your lessons? (google classroom, teams etc.)

I am teaching myself using Khan Academy, Duolingo, and a few books (CliffNotes Algebra II and Intermediate French for Dummies)

Wed - What’s your favourite study snack?

Does water count? Or coffee? I haven’t been snacking because I’m carefully tracking my calories to lose some weight for my health. I still eat regular meals though lol don’t worry!

Thu - How are you keeping active?

I have been going on walks or wandering my house when I have a break to try and keep moving.

Fri - What is your favourite subject/topic to study at the moment?

Definitely French! It’s so much fun revisiting the language and I am enjoying re-learning the vocab I’ve forgotten.

Sat - Where in your house is your favourite place to study?

Dining Room, full stop. Or outside at our picnic table in the backyard, but usually the dining table is the best. There’s wnough space for everything and I don’t get distracted or tempted to lay down like I do when I’m at my desk, which is in my room.

Sun - What are you doing to relax?

Meditation and reading for pleasure. I’ve been using Headspace because the app works best for me with the method and guided meditations they do. I’ve been re-reading the Percy Jackson series as well- just finished book 1! Going to try and read all of the “Gods” series by Rick Riordan honestly… I just really enjoy his writing!

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