Interactive Human Digestive System Board
Source: Stemoto Original
A multi-layered laser-cut wooden board depicting the human digestive tract. When students touch different organs (Mouth, Stomach, Intestines) with a probe, the micro:bit triggers LED path animations and plays audio clips explaining that organ's role in digestion.
Categorisation
Props & Materials Required
- •Precision laser-cut body anatomical board
- •micro:bit
- •Conductive touch pins (crocodile clips + copper tape)
- •Small speaker or buzzer
- •LEDs (different colors for each organ path)
- •Coin cell batteries or AA battery pack
Step-by-Step Instructions
Assemble the Board
Layer the laser-cut wooden pieces to build the anatomical board showing the digestive tract — from mouth to esophagus, stomach, small intestine, and large intestine.
Wire the Touch Points
Wrap copper tape around each organ section. Connect each copper pad to a different pin on the micro:bit using crocodile clips.
Program the Responses
In MakeCode, program each pin: when Pin 0 (Mouth) is touched → play a chewing sound and light up the first LED. When Pin 1 (Stomach) is touched → play a gurgling sound and light up the stomach LED.
Add the LED Path
Wire LEDs along the digestive path. When the child touches each organ in sequence, the LEDs light up one after another, showing food's journey through the body.
Quiz Mode
Challenge: The micro:bit plays a sound or shows a clue on the LED matrix. The child must touch the correct organ. If right, happy face! If wrong, sad face!
Why It Works & Notes
Audio-visual-tactile learning for biological systems. Instead of memorizing organ names from a textbook, children physically interact with each organ and receive immediate multi-sensory feedback — lights trace the digestive path while audio explains the function.
NEP Alignment: Audio-visual-tactile learning for biological systems. Curriculum Mapping: Science (Human Body, Digestive System, Teeth & Health). Target Level: Class 4.