Scratch coding and animation for Thao Dien expat kids in HCMC turns passive screen time into creative coding—arcade games and animated stories built with drag-and-drop logic, fully in English.
A model starts with noticeable prediction error. Gradient Descent is the most common algorithm for iteratively reducing that cost toward a minimum.
Gradient = slope of changing values; Descent = moving downward. Together: step down the error slope to the lowest cost point.
Release a ball from a high point (high error). It rolls into the valley, may overshoot and oscillate, then settles at the bottom (minimum cost). Gradient Descent follows the same idea with parameter updates instead of gravity.
A hyperparameter that sets step size. Typical values: 0.1, 0.05, 0.01. It scales how much of the gradient is applied each iteration so updates stay controlled.
| Setting | Step size | Speed | Outcome |
|---|---|---|---|
| Too small (e.g. 0.0001) | Tiny | Very slow | Precise but takes too long |
| Too large (e.g. 1.5) | Huge | Fast at first | Overshoots; may never settle |
| Optimal (e.g. 0.01–0.05) | Balanced | Good | Efficient convergence |
| Adaptive | Shrinks over time | Fast then precise | Speed early, fine control near the minimum |
It is an iterative optimizer that lowers cost by stepping down the error slope. Like a ball released on a hill, it moves toward the valley, may oscillate, then rests at the minimum.
m_new = m_old − (learning rate × gradient error). The learning rate (e.g. 0.1, 0.05, 0.01) scales each step so the update is controlled instead of a huge uncontrolled jump.
Too small → tiny steps, very slow training. Too large → overshoot and endless oscillation. Adaptive rates start larger for speed, then shrink near the minimum for precision.
Scratch by MIT Programming for Kids on Udemy.
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Thao Dien families often want English STEM that matches international-school expectations. Scratch emphasises cause and effect. Enquire WhatsApp +92 322 4217059. No invented Thao Dien studio.
Scratch uses drag-and-drop visual blocks that remove typing barriers while teaching core computer science fundamentals—such as conditional loops, coordinate systems, and variables. Consequently, children in Thao Dien transition from playing video games to actively creating their own 2D games and animations.
Yes! All live instruction, project slides, and coding environments are presented 100% in clear English, making it seamless for students enrolled at BIS HCMC and surrounding international academies.
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