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Cómo enfocar una clase de matemáticas, según Dan Meyer.

Hay aplicación para móvil: https://play.google.com/store/apps/details?id=net.bonusstage.mensekimeiro

Actividades interactivas de la fundación Shodor. Están en ingles pero podemos encontrar applets de cualquier rama matemática muy fáciles de seguir.

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Bonita introducción al análisis matemático. En inglés.

Bonita descripción de la función exponencial. En inglés.

Why do arguments change people's minds in some cases and backfire in others? Hugo Mercier explains how arguments are more convincing when they rest on a good knowledge of the audience, taking into account what the audience believes, who they trust, and what they value. View full lesson here: https://ed.ted.com/lessons/how-can-you-change-someone-s-mind-spoiler-facts-don-t-work-so-well-hugo-mercier Subtítulos en español. Duración 4:25.

David Thouless, Duncan Haldane, and Michael Kosterlitz won the Nobel Prize in Physics in 2016 for discovering that even microscopic matter at the smallest scale can exhibit macroscopic properties and phases that are topological. But…, what does that mean? Fan Zhang helps decode some seriously tricky science. Topología. View full lesson here: https://ed.ted.com/lessons/what-in-the-world-is-topological-quantum-matter Subtítulos en español. Duración 4:45.

You've been chosen as a champion to represent your wizarding house in a deadly duel against two rival magic schools. Your opponents are a powerful sorcerer who wields a wand that can turn people into fish, and a powerful enchantress who wields a wand that turns people into statues. Can you choose a wand and devise a strategy that ensures you will win the duel? Dan Finkel shows how. View full lesson here: https://ed.ted.com/lessons/can-you-solve-the-wizard-standoff-riddle-daniel-finkel Subtítulos en español. Duración 4:16.

After a massive storm tears through the Hex Archipelago, you find five grizzled survivors in the water. As an act of gratitude for saving them, they reveal a secret - the island they were just on holds some buried treasure. But when the sailors try to describe the island, something seems off. Can you find the booty despite their strange instructions? Daniel Griller shows how. View full lesson here: https://ed.ted.com/lessons/can-you-solve-the-buried-treasure-riddle-daniel-griller This riddle is an adaptation of "Helen on the island" and appears in its original form in the book Elastic Numbers: 108 Puzzles for the Serious Problem Solver by the educator. Subtítulos en español. Duración 3:54.

Your interstellar police squad has tracked a group of criminals to a cluster of seven planets. Now you must apprehend them before their reinforcements arrive. Of course, the fugitives won't just stay put - they'll try to dodge you by moving from planet to planet. Can you devise a sequence for searching the planets that's guaranteed to catch them in ten warps or less? Edwin F. Meyer shows how. View full lesson here: https://ed.ted.com/lessons/can-you-solve-the-seven-planets-riddle-edwin-f-meyer The strategy of simplification allows problem-solvers to gain new insights about possible solutions that may be difficult to grasp when looking at too many variables. Subtítulos en español. Duración 4:30.

Mining unobtainium is hard work - the rare mineral appears in only 1% of rocks in the mine. But your friend Tricky Joe has something up his sleeve. The unobtainium detector he's been perfecting for months is finally ready, and it returns accurate readings 90% of the time. But can it really be trusted? Alex Gendler explains the false positive paradox and the base rate fallacy. View full lesson here: https://ed.ted.com/lessons/can-you-solve-the-false-positive-riddle-alex-gendler Want to find out how to win Monopoly using probability? Read this article to learn how to sharpen your board game skills with probability: http://mentalfloss.com/article/64314/math-hacks-will-give-you-edge-monopoly Why do we fall for false positives even though they're common? This piece breaks down the mathematical paradox: https://www.newscientist.com/article/2100273-why-do-we-fall-for-false-positives-even-though-theyre-common/ This scientific article describes the real-world influence of posterior probability: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4441123/ Subtítulos en español. Duración 4:20.

A few lines of attack on lines. Una función es una relación entre dos magnitudes. Una secuencia de ejercicios para entender qué es una función y su gráfica.

A remix of the birthday «paradox». The world of mathematics is full of dazzling, wormhole-through-reality connections. Paradoja del cumpleaños.

The villainous Dr. Schrödinger has developed a growth ray and intends to create an army of giant cats to terrorize the city. Your team of secret agents has tracked him to his underground lab. You burst in to find… that it's a trap! Can you escape from Dr. Schrödinger's lair and save the day? Dan Finkel shows how. View full lesson here: https://ed.ted.com/lessons/can-you-solve-the-giant-cat-army-riddle-dan-finkel Subtítulos en español. Duración 4:45.

Problemas de los años 2008 a 2012, 25 problemas por año, y sus soluciones. Organised by the United Kingdom Mathematics Trust. Para alumnos en «School Year 11 or below». «School Year 11 or below» corresponde con 4º de ESO.

Size is the most under appreciated regulators of living things. Primera parte: https://youtu.be/f7KSfjv4Oq0 Subtítulos en español. Duración 6:54.

You're overseeing the delivery of supplies to a rebel base in the heart of enemy territory. To get past customs, all packages must follow this rule: if a box is marked with an even number on the bottom, it must be sealed with a red top. One of the four boxes was sealed incorrectly, but they lost track of which one. Can you figure out which box it is and save the day? Alex Gendler shows how. View full lesson here: https://ed.ted.com/lessons/can-you-solve-the-rebel-supplies-riddle-alex-gendler Falacia de la afirmación del consecuente, también llamado error inverso (affirming the consequent, sometimes called converse error, fallacy of the converse or confusion of necessity and sufficiency). Subtítulos en español. Duración 4:21.