August 2026
June 2026
April 2026
- Apr 25, 2026ConceptsThe Testing Effect: Quizzing Yourself for Better RetentionWhy the study method that feels effective is not. Roediger and Karpicke's 2006 benchmark compared repeated study against repeated retrieval with equal time on the material, and the retrieval group performed far better on a delayed test one week on while rating their learning lower. Their 2008 follow-up in Science found the same pattern even though students predicted repeated study would serve them as well or better.
- Apr 14, 2026ConceptsFeynman Technique: Accelerate Learning with EvidenceWhat the four steps are and why the method works alone. Nestojko and colleagues found in 2014 that undergraduates told they would teach a passage outperformed those told they would be tested on it, on both recall and conceptual questions, although neither group taught anyone. The preparation frame produces the gain, which is why explaining a concept in plain language to no one still exposes the gaps.
February 2026
- Feb 28, 2026ConceptsLearning Science Terms Explained ClearlyLoose vocabulary produces bad study habits: "reduce cognitive load" should mean cutting extraneous load, not the germane load that is the learning. This glossary draws the lines that matter, between fluency and real recall, blocked and interleaved practice, near and far transfer, activity and genuine engagement. Karpicke and Blunt (2011) found self-testers outlearned students who built concept maps and rated the maps as better.
- Feb 13, 2026ConceptsHow Learning Actually Works According to ScienceRoediger and Karpicke's 2006 experiment split students between re-reading and self-testing. On a five-minute test the re-readers won, which is why students keep re-reading, but a week later the retrieval group held about 61% against roughly 40% for those who read the passage four times. The article traces why highlighting, cramming and learning-style matching fail, and what Dunlosky's 2013 review rated as high utility.
- Feb 11, 2026ConceptsLearning Myths That Refuse to DieSeven persistent myths taken apart against the research, from learning styles and left brain versus right brain to multitasking, cramming, and brain training games. Howard-Jones's survey synthesis across five countries found belief in learning styles ranging from 93 percent in the UK to 97 percent in Turkey and China, and the rates were no lower among teachers with more science training. What replaces the myths: retrieval practice, spacing, elaboration, and interleaving.
- Feb 10, 2026ConceptsWhy Most Learning FailsRoediger and Karpicke gave both groups the same total study time and found testing beat rereading decisively. Karpicke and Blunt went further in Science: on a test a week later, the retrieval practice group scored around 67 percent against roughly 45 percent for concept mapping, while the repeated readers rated their own learning highest and retained least. This page works through fluency illusions, spacing, elaboration and interleaving.
August 2025
July 2025
- Jul 15, 2025ExplainersEffective Learning Systems That Yield SuccessFreeman and colleagues pooled the STEM comparisons in PNAS, found exam scores rose about six percentage points under active learning, and the effect was large enough that the authors called continued reliance on lecturing unethical. Mazur reached the same conclusion from the other direction: his evaluations were strong until the Force Concept Inventory showed students could solve equations without understanding what they meant, which led him to peer instruction.
- Jul 10, 2025ExplainersLearning Effectiveness ChecklistTen checks covering active recall, spaced practice, interleaving, elaboration, concrete examples, prompt feedback and deliberate practice, with the popular habits to drop. Roediger and Karpicke's 2006 study found students who took recall tests remembered about 61 percent of idea units a week later against 40 percent for rereaders. Dunlosky's 2013 review rated highlighting, rereading and keyword mnemonics low utility.
- Jul 2, 2025ExplainersLearning by Doing vs StudyingScott Freeman's 2014 PNAS meta-analysis of 225 STEM studies found students in traditional lecture courses were 1.5 times more likely to fail than those in active learning courses, 33.8 percent against 21.8 percent. The article pairs that with the Wright brothers, who read Lilienthal and Chanute and then tested over 200 wing shapes in their own wind tunnel, to argue that study supplies the framework while practice supplies procedural skill.
June 2025
- Jun 7, 2025ExplainersUnderstanding Cognitive Load in LearningThree loads, and which to cut. Intrinsic load is the material's own complexity, extraneous load is wasted effort from poor presentation, and germane load is the productive work of building schemas. Sweller's 1988 paper established the worked example effect, and Kalyuga later documented expertise reversal, where the same examples that help novices start to hinder experts. Working memory holds roughly four to seven chunks.
- Jun 5, 2025ExplainersEffective Learning Techniques Based on ScienceKarpicke and Blunt expected the more cognitively demanding elaboration strategy to win and it did not, a result published in Science in 2011. The wider pattern is that effective methods feel worse while you use them, because fluency during study reflects familiarity rather than learning. This page covers encoding and retrieval, expanding spaced repetition schedules, interleaving and when it backfires for novices, cognitive load, and the worked examples effect.
May 2025
- May 5, 2025CultureUnderstanding Credentialism: A Focus on QualificationsIn 2014 an entry-level receptionist posting at a New York investment bank required a bachelor's degree for answering phones and scheduling meetings, work high school graduates had done for decades. Randall Collins argued in The Credential Society in 1979 that American education works less as skill development than as a sorting machine. Harvard's Dismissed by Degrees found requirements rising where the actual skills had not changed.
- May 5, 2025CultureLearning Culture ExplainedLearning culture is the attitude toward knowledge that decides whether training does anything at all, and the evidence is counterintuitive. Amy Edmondson's nursing research found that teams with higher psychological safety reported medication errors at higher rates, not because they made more but because they surfaced them, so the teams that looked best were performing worst. Also covered: Project Aristotle, and the Xerox PARC, NASA and Nokia failures.
- May 3, 2025CultureEducation vs Learning: A Comparative OverviewA student attends the organic chemistry lecture, takes notes, feels confident, then cannot solve any exam problem that is not a copy of a textbook example. She was educated and did not learn. Education is the institutional system of curricula, instruction, assessment and credentials; learning is the cognitive process of attention, encoding, connection, practice and feedback. Education happens to you; learning happens in you.
- May 2, 2025CultureKnowledge Transfer ProblemsPolanyi's point that we know more than we can tell is the core obstacle: tacit knowledge sits in procedural memory below conscious access, so an expert is not withholding anything. Elizabeth Newton's tapping study showed the gap: tappers predicted listeners would name about 50 percent of the songs, and listeners identified 2.5 percent. Szulanski studied 122 best-practice transfers across eight companies and found the main barrier was absorptive, not motivational.
- May 1, 2025CultureTeaching vs Understanding: Key Differences ExploredA physics professor delivers a perfectly clear lecture on Newton's Third Law. Three weeks later forty percent of the class answers a straightforward conceptual question wrong. Teaching transmits information; understanding is a mental model the learner has to build. The six capacities that mark the difference: explaining in your own words, applying to new situations, spotting errors, connecting to other knowledge, predicting outcomes, and teaching someone else.
- May 1, 2025CultureStandardization vs CreativityStandardization delivers scale, accountability and an equity floor while rewarding convergent answers; creativity needs the ambiguity assessment pressure removes. Amabile's 1985 collage study found elementary students told they would be judged produced the least creative work, with evaluation suppressing creativity more than reward did. Massachusetts districts that kept arts programs showed no MCAS decline against districts that cut them.
April 2025
March 2025
August 2024
June 2024
- Jun 26, 2024ExplainersHow Language Acquisition Works: From Babble to GrammarDeaf pupils gathered with no shared signs produced a simple gestural system first, and then the younger cohort who learned it from them added recursion, verb agreement and spatial grammar that no adult had modeled. It remains the only documented case of a complete language emerging from nothing in one generation, and it shows acquisition is not imitation but restructuring of whatever input arrives.
- Jun 2, 2024CultureWhat Is Wrong With Education? Analyzing Systemic FailuresA Gallup survey of 5.4 million US students found only 34 percent engaged by high school. The page does not lean on the famous TED talk to carry the argument, calling Robinson a polemicist whose case was more evocative than rigorous, and it flags that growth mindset replications came in more modest than the first results. Labaree's three competing purposes explain much of the dysfunction.
January 2024
November 2023
January 2023
December 2022
November 2022
September 2022
August 2022
July 2022
- Jul 27, 2022CultureWhere Education Is Headed: The Future of Education ExplainedA Wharton experiment adds a warning about the obvious fix, since students using a GPT-4 base tutor improved practice performance by 48% but scored 17% worse on an unassisted exam, while a guardrailed version largely mitigated the harm. The credit system is arbitrary at its root too: the Carnegie Unit was defined in 1906 as 120 hours of instruction time, created to settle professor pension eligibility rather than to measure learning.
- Jul 18, 2022ConceptsCobra Effect in Education: When Incentives BackfireThe quieter failure is performance pay. Vanderbilt researchers offered Nashville math teachers bonuses up to $15,000, roughly a third of a typical salary, and found no significant difference in student achievement. Grades drifted the same way, with Rojstaczer and Healy finding As at about 43 percent of all grades at American four-year colleges, up from 15 percent in 1960. The mechanism is that a measure stops informing once it becomes the target.
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