The Plumber - Modeling the Four-Chamber Heart for the TI-Nspire CXII Python

Students model the electrical activity of a four-chamber heart using coding, LED's and Play-Doh, an electrically conductive modeling compound.

Publisher: Texas Instruments Inc.

Topic:  Biology  Computer Science  STEM


Build a four-chambered heart

Students will design a model of a four-chambered heart


Concepts in project

Heart anatomy and Homeostasis Coding concepts:
Calculation of rates (beats per minute)   Loops
Feedback and control system   Conditional Statements
Temperature sensor input   Variables
LED and sound output  




Project Resources

Download Teacher Document PDF link   Word Doc  link

Download Teacher file with example programs   TI-Nspire File  link

Download Student Handout  PDF link   Word Doc  link

Download Student Build Sheet link

Download Student file   TI-Nspire File  link

Download Python Syntax Reference Handout  PDF link 



Demonstration video  link

Project setup diagram on Build Sheet link

LED Polarity link





Learn to do the project yourself

Overview of the TI-Nspire CXII for Programming in Python (Youtube video) link

Write your first Python program on TI-Nspire CXII (Youtube video) link

Meet the TI-Innovator Hub link

Download Learn to do the project PDF link


Setting up

Update your TI-Nspire CX family handheld, TI-Nspire computer software and TI-Innovator sketch link

Download a step-by-step guide to updating your TI-Innovator Hub   PDF link 


Own project equipment

Here is information for budget requests and grant proposals.

Download a PDF listing the equipment needs for each TI-Innovator Hub Project  link

See a list of TI Instructional Product Dealers and request a quote  link



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Contact with questions or comments.


Publisher specific license