머신러닝 교사 도우미
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Meet the alphabet! Learn letters & the sounds they make.
5,000년 전 니일 강의 둑으로 돌아가, 한 강이 어떻게 문명이 되었는지 발견하세요.
Discover animals and their homes! From farms to oceans to jungles.
Zoom into the atom & discover why the periodic table serves as the most powerful cheat sheet in science.
Discover how cells work: from membranes to mitochondria: and why every living thing depends on them.
기후 변화에 대한 증거를 조사하고, 기작을 이해하고, 이를 해결할 수 있는 것에 대해 평가해보세요.
Learn how artists use color to create mood, depth, and meaning: from the color wheel to masterworks.
Find colors and shapes everywhere you look! A first lesson for little learners.
Count along with us! A first numbers lesson for little learners.
Big O notation describes how an algorithm's cost grows as the input grows. O(N) means doubling the input doubles the work. O(N²) means doubling the input quadruples the work. This lesson builds Big O intuition through programming examples, comparison tables, & hands-on cost calculations — then points to a deeper dive in our unhamming course.
Big O describes worst-case growth. Theta describes tight bounds. Omega describes best case. Space complexity tracks memory, not just time. Amortized analysis spreads occasional expensive operations across a sequence. This lesson builds the formal toolkit for analyzing any algorithm.
A list stores items in order. A set stores unique items for instant lookup. Choosing between them changes your program from O(N²) to O(N). This lesson builds intuition for when to reach for each data structure, how their Big O costs differ, & how to combine them to solve real problems.
Algorithms live everywhere: in how you sort your toys, find your shoes, or figure out the fastest way to eat your vegetables first. This lesson finds algorithms in everyday life, sorts by color & size, & discovers that some ways of searching work faster than others.
Linear search checks every item one by one. Binary search jumps to the middle & cuts the work in half each time. Bubble sort compares neighbors & swaps them. This lesson builds intuition for why organized data lets computers work faster — with hands-on examples using numbers & words.
Decode the molecule that builds every living thing: from bacteria to blue whales.
Learn about feelings (happy, sad, mad, scared) & how to become a good friend.
Master fractions through real-world examples: cutting pizza, sharing candy, and building toward algebra.
Calculate areas of 2D shapes, volumes of 3D solids, and plot points on the coordinate plane.
Learn about points, lines, rays, angles, and how to find symmetry in shapes.
동심성, 유사성, 기하학적 변형 및 삼각함수의 기초를 탐색하십시오.
Find circles, squares, triangles, and rectangles in the world around you.
Learn to solve equations step by step: the foundation of all higher mathematics.
비판적 사고 도구로 두뇌를 날카롭게 만들어 보세요. 2500년 동안 철학자들이 진실을 찾고 바보 같은 것을 발견하기 위해 사용한 도구입니다.
Understand the building blocks of every song ever written: from Bach to Beyonce.
Learn about your amazing body! From your head to your toes and everything in between.
Understand the three laws that govern everything from falling apples to orbiting planets.
Learn what food actually does inside you, & why the best diet works simpler than the internet makes it seem.
Learn to argue like a lawyer and write like a journalist: the art of changing minds with words.
Discover why continents drift, mountains rise, earthquakes shake, and volcanoes erupt: the engine beneath your feet.
Read and analyze Robert Frost's classic poem about choices and their consequences.
Learn the math behind luck: from coin flips to card games to predicting weather.
Explore the science of remembering & forgetting, & learn why your brain proves both amazing & unreliable.
Discover a 2,500-year-old formula that connects geometry to the real world: from construction to GPS.
Write your first Python programs: print, variables, input, and logic.
Master the recorder family, transposition, ensemble reading, Baroque ornamentation, and tuning, then carry that musicianship straight into a concert band woodwind section.
Learn to hold a recorder, blow gentle warm air, and play your first three notes: B, A, and G.
Master the soprano recorder's full range, cross-fingering, articulation, breath, and the creeping accelerando of Grieg's 'In the Hall of the Mountain King'.
High and low, loud and soft, a steady beat, and gentle warm air: a first music lesson for little learners, getting ready to play the recorder.
Confront the most famous question in literature: and discover why a 400-year-old play still speaks to us.
Understand the invisible force that sets every price: from sneakers to streaming subscriptions.
Understand the document that created a government & the amendments that keep it alive 230+ years later.
Sun, rain, snow, and wind! Learn about weather and the four seasons.
Examine key moments that decided the largest conflict in human history, & the world it left behind.