Learn // Topics
All topics
1,417 to 1,440 of 1,595 topics
By subject and area, youngest first
History // Medieval Times
Siege WarfareHow castles were attacked and defended: siege weapons (trebuchets, battering rams, siege towers), boiling liquids, arrow slits, murder holes; the drama of a…
Ages 7 to 9ConceptHistory // Medieval Times
The Black DeathThe Black Death of 1348-49: what the plague was, how it spread, its devastating death toll; how it changed society by giving surviving workers more power and…
Ages 7 to 9ConceptHistory // Medieval Times
Vikings vs Anglo-SaxonsThe conflict between Vikings and Anglo-Saxons for control of England: Viking raids, Alfred the Great's resistance, the Danelaw, Athelstan as first king of all…
Ages 7 to 9ConceptHistory // Medieval Times
Medieval Legacy in Modern LifeWhat the Middle Ages gave us: Parliament, universities, common law, Gothic architecture, the English language (Anglo-Saxon + Norman French), place names…
Ages 9 to 11ConceptHistory // Medieval Times
Medieval Worlds Beyond EuropeThe medieval world beyond Europe: the Islamic Golden Age (maths, medicine, architecture), the Mali Empire and Mansa Musa, Song Dynasty China; how the medieval…
Ages 9 to 11ConceptHistory // Medieval Times
Printing Press & RenaissanceThe invention of the printing press by Gutenberg and its arrival in England with William Caxton; how printed books changed everything; the transition from the…
Ages 9 to 11ConceptHistory // Medieval Times
Art & ArchitectureMedieval cultural achievements: illuminated manuscripts, Gothic cathedrals (flying buttresses, stained glass), Gregorian chant, the Bayeux Tapestry; art and…
Ages 9 to 11ConceptHistory // Medieval Times
Magna Carta and Limiting Royal PowerKing John, the barons' revolt, and the sealing of the Magna Carta in 1215; what the Magna Carta said about limiting the king's power; its lasting importance for…
Ages 9 to 11ConceptHistory // Medieval Times
Towns & TradeThe growth of medieval towns: markets, guilds, the merchant class; how towns won charters of self-governance; the shift from purely rural to partly urban life
Ages 9 to 11ConceptHistory // Medieval Times
Crime & PunishmentHow justice worked in medieval times: trial by ordeal, trial by combat, the role of the sheriff; punishments including stocks, pillory, and dungeons; how…
Ages 9 to 11ConceptHistory // Medieval Times
Women in the Middle AgesThe lives of medieval women: noblewomen managing estates, peasant women's hard daily work, nuns and abbesses, notable figures like Eleanor of Aquitaine and Joan…
Ages 9 to 11ConceptComputing // Artificial Intelligence
Computers in Everyday LifeIdentifying computers in everyday life — not just laptops but phones, tablets, smart speakers, traffic lights, washing machines; what makes something a computer
Ages 5 to 7ConceptComputing // Artificial Intelligence
AI in Daily LifeSpotting AI in daily life: face unlock on a phone, video recommendations, spelling auto-correct, automatic doors that detect people; technology that seems to…
Ages 5 to 7ConceptComputing // Artificial Intelligence
Voice Assistants and How They WorkWhat happens when you talk to Alexa, Siri, or Google Assistant; they listen, try to understand, look up answers; sometimes they get it wrong; they are tools…
Ages 5 to 7ConceptComputing // Artificial Intelligence
Smart Versus Not-Smart DevicesSorting objects into 'smart' (can sense and respond) and 'not smart' (just sits there); a toaster vs a smart speaker; introduction to the idea that some…
Ages 5 to 7ConceptComputing // Artificial Intelligence
Step-by-Step InstructionsStep-by-step instructions for everyday tasks (making a sandwich, brushing teeth); that if instructions are wrong or missing, things go wrong; computers follow…
Ages 5 to 7ConceptComputing // Artificial Intelligence
Real-World RobotsWhat a robot really is — not the sci-fi version; robots in factories, robot vacuum cleaners, robot arms in surgery; that robots follow instructions given by…
Ages 5 to 7ConceptComputing // Artificial Intelligence
Data and Information for ComputersWhat data is: information that computers use — numbers, words, pictures, sounds; everything a computer knows comes from data that people give it
Ages 7 to 9ConceptComputing // Artificial Intelligence
Patterns and ClassificationHumans are great at spotting patterns; computers can learn to spot patterns too, but they need lots of examples; sorting and classification activities as the…
Ages 7 to 9ConceptComputing // Artificial Intelligence
Machine Learning BasicsHow machine learning works at a conceptual level: show the computer many examples, it finds patterns, then it makes predictions about new things; hands-on…
Ages 7 to 9ConceptComputing // Artificial Intelligence
AI Mistakes and LimitationsMachines make mistakes; they only know what they've been shown; bad training data leads to bad results; AI is not magic — just maths on data; showing edge cases…
Ages 7 to 9ConceptComputing // Artificial Intelligence
Humans Versus MachinesComparing human and machine capabilities: creativity, empathy, common sense vs speed, memory, repetition; the Turing Test (simplified); what makes humans unique
Ages 7 to 9ConceptComputing // Artificial Intelligence
Recommendation Systems and Filter BubblesHow recommendation systems work: YouTube, Netflix, and shop websites track what you click and find patterns; filter bubbles; the difference between helpful…
Ages 7 to 9ConceptComputing // Artificial Intelligence
AI in Computer GamesHow computer game characters 'decide' what to do; simple rule-based AI vs learning AI; NPCs, difficulty adjustment; AI as the opponent in chess or board games
Ages 7 to 9Concept