how to make types of polynomial working model with led lights

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In this video, we show how to make an Interactive Types of Polynomials Model using LED lights, metal nails, wires, and a cardboard base.
This working model helps students easily identify Monomial, Binomial, and Trinomial expressions in a fun and touch-activated way.

When the student touches the nail beside an expression →
The correct LED glows:

  • Monomial LED
  • Binomial LED
  • Trinomial LED

How the Model Works (Touch-Activated LED System)

Materials Needed

  • Cardboard base
  • Color papers
  • 10 metal nails
  • 3 LED lights (red, green, yellow or any colors)
  • Wires
  • 9V battery
  • Fevicol / tape
  • Sketch pens for decoration
  • Safety switch (optional)
  1. Each expression has a metal nail near it.
  2. All nails are connected to the LED that matches the type of polynomial.
    • All monomial nails → go to Monomial LED
    • All binomial nails → go to Binomial LED
    • All trinomial nails → go to Trinomial LED
  3. When a nail is touched → the finger completes the circuit.
  4. The correct LED glows instantly.

This helps students understand polynomials by number of terms.

https://www.youtube.com/@howtofunda

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