Education5 min read
How Latin America Won Independence, Colony by Colony
Independence in Latin America was a dozen separate processes, not one Bolivar story. What triggered them, who fought on which side, and what did not change.
383 articles · page 12 of 16
Education guides, page 12
Articles 265–288 of 383, newest first. The introduction to this reading list, its topic hubs and the guides other articles cite most are on the first page.
Education articles 265–288
- Education7 min read
Lattice and Line Multiplication: Two Grid Methods, One Idea
The lattice grid and the crossing-lines trick are the same place-value bookkeeping in two costumes. Here is how each works, and where both stop being useful.
- Education6 min read
Left-to-Right Addition: Why Paper Order Is the Wrong Order
Add the big parts first, and a written-method carry turns into a running-total correction. The full method, the failure case, and how to absorb it.
- Education6 min read
The Limitations of IQ Testing, Stated Plainly
Even a well-built battery, correctly administered, has hard limits: what it samples, what it cannot measure precisely, how it ages, what it should not decide.
- Education5 min read
Solving a Logic Grid Puzzle Step by Step
A worked method for grid logic puzzles: mark negatives first, propagate every positive across its row and column, and use counting when elimination stalls.
- Education6 min read
Pagan, Ayutthaya, Lan Xang and Dai Viet: Kingdoms of the Mainland
Burma, Siam, Laos, Vietnam and Champa each had their own states long before colonial maps. Who ruled what, and how the dates are actually established.
- Education6 min read
Mansa Musa, the Hajj of 1324 and the Problem of Measuring Wealth
What the Arabic sources actually record about Mali's most famous ruler, why the pilgrimage mattered, and why his wealth cannot be converted into modern money.
- Education5 min read
Math Anxiety in Adults: What the Research Describes
What researchers mean by mathematics anxiety, the working-memory account of why it affects performance, and what a practice app can honestly offer.
- Education6 min read
How a Three-by-Three Matrix Puzzle Is Built
Matrix reasoning items are built from a few named rules running across rows and down columns. How the attributes, the rules and the wrong options are chosen.
- Education5 min read
Maurya and Gupta: Two Very Different Indian Empires
Maurya and Gupta are both called golden ages of India, yet they were built differently and survive in different evidence. What actually separates them.
- Education6 min read
The Maya Long Count: How Mesoamerica Recorded Time
A five-position count of elapsed days, two interlocking cycles, and one unresolved correlation with our calendar. Here is how Maya dates are actually read.
- Education6 min read
The Meiji Restoration: Revolution From Above
Why 1868 is called a restoration and behaves like a revolution: the domains abolished, conscription, land tax reform and the samurai who dismantled themselves.
- Education5 min read
Mesoamerica Before the Aztecs: Olmec, Teotihuacan, Zapotec, Toltec and Maya
The Aztecs arrived late. Two and a half millennia of Mesoamerican states came first, and one of the biggest cities has builders we still cannot name.
- Education6 min read
Missing Number Problems: Undoing an Equation
Which inverse operation solves a missing number problem depends on where the blank sits. Worked examples, the two shapes that trip people up, and a check.
- Education6 min read
Mnemonic Systems Built for Digits
Phonetic, shape, rhyme and peg systems all convert digits into something easier to hold. What each one asks of you before it starts paying anything back.
- Education6 min read
How the Mongol Conquests Spread So Fast
Cavalry is the weakest explanation for Mongol speed. Logistics, relay communications, surrendered engineers and succession crises explain far more.
- Education6 min read
Multiplying by 5, 25 and 50 by Dividing Instead
Five is ten halved and twenty-five is a hundred quartered, so the multiplication becomes a shift and a division. Pick which number to divide first.
- Education6 min read
Multiplying by 9, 99 and 999 Without Doing the Multiplication
Nine is ten minus one, so multiply by the round number and take one lot away. The same move runs at 99, 999 and 9,999, with a digit-sum check built in.
- Education6 min read
What an N-Back Task Actually Asks You to Do
What an n-back task asks you to do, why dual n-back feels unlike other memory games, and what the training studies actually found about transfer.
- Education5 min read
The Neolithic Revolution: Farming's Many Independent Beginnings
Agriculture began separately on at least four continents. What the evidence shows about where, why people switched, and what it cost the first farmers.
- Education5 min read
Nonverbal Reasoning Tests: What Culture-Reduced Actually Claims
Nonverbal reasoning tests replace words with shapes. That removes a language barrier, but it does not make a test culture-free. Here is what the evidence shows.
- Education6 min read
Number Bonds and Making Tens
Complements to 10, 100 and 1000 are the layer every mental addition method assumes: what they are, the digit rule with one trap, and how adults install them.
- Education7 min read
Number Sequence Puzzles, Explained From the Rule Up
A catalogue of the rule types behind number sequence puzzles, a first-pass procedure that beats guessing, and the honest limit of every such puzzle.
- Education5 min read
Numerical Reasoning Tests Are Not Arithmetic Tests
Numerical reasoning tests assume you can already calculate. The difficulty is deciding what to compute from a table, and doing it inside a 40-second budget.