Build a Tiny Neural Network by Hand: Forward Pass, Loss, and Training
Build a one-neuron classifier in plain Python—weights, sigmoid, loss, and training—without TensorFlow or PyTorch.
Tutorials
Learn by doing with our hands-on tutorials featuring interactive diagrams, drag-and-drop activities, and knowledge checks.
Build a Plan-and-Execute Agent with Tool Calling + an Approval Gate (Python)
Learn to build an agentic AI system that plans, executes tools, and asks for approval before risky actions
Understanding Heap Sort
Master heap sort through interactive visualizations and hands-on practice
Understanding Bubble Sort
Learn how bubble sort works through interactive visualizations and hands-on practice
Understanding Binary Search Trees
Learn how binary search trees work through interactive visualizations and hands-on practice
Understanding Insertion Sort
Learn how insertion sort works through interactive visualizations
Understanding Merge Sort
Master the efficient merge sort algorithm through interactive examples
Understanding Quick Sort
Master the efficient quick sort algorithm through interactive examples
Understanding Selection Sort
Learn how selection sort works through interactive visualizations
Build an MQTT IoT "Digital Twin" on Your Laptop (Mosquitto + Node-RED + Python)
Learn how to build a complete IoT system with MQTT broker, device simulator, and dashboard visualization - all running locally on your laptop