Part 1: Introduction

  • What does your brain do?

  • Makes decisions
  • Controls your muscles
  • Anything else?

Parts of the Brain

What are neurons?

  • Information has to come in and out of our brain - this needs a transport system!
  • Neurons help carry information (nerve impulses)!
  • Can you guess how many neurons are in our brain?

Parts of the Neuron

Action Potential

Action Potential

  • Today, we will all become neurons and do what the brain does
  • Your arms are long axons that carry the action potential while your fingers will be axon terminals



  • To get between different parts of your body, a signal has to travel through many neurons and neurons have to communicate with other neurons.
  • A thumbs up is the stimulus or green light.
  • If you receive the stimulus, squeeze the next person’s hand!

Action Potential

  • When the wave gets to the muscle, the muscle will contract (jump!) in response to the signal. Muscle contraction makes your body move.

The Great Neuron Race

  • Team ______ vs. Team ______


Part 2: Your Brain

Part 2: Hemispheres of Your Brain

Part 3: Brain Teasers

  • Our tongues and noses convey signals to our brain about the flavor of certain foods
  • We will be using JELLY BEANS for the next experiment. One lucky volunteer will get to taste some jelly beans!

What’s happening?

  • Why is it harder to taste when we plug our nose?
  • By “cutting off” the signal from our nose to our brain, a neuron impulse responsible for taste that results from our perception of smell is not received in the brain
  • This is why its hard to taste when you have a cold

Part 4: Retraining Your Brain

  • Is it possible to retrain your brain?
  • Yes, the brain will make new connections when they learn about new things
  • For this part, we will be retraining your occipital lobe


  • First, walk in a straight line while wearing the goggles
  • Try to throw a ball to another student !

What happened?

  • Since what the student sees is different from what is actually there, it is difficult to do these tasks initially
  • However, the brain can compensate for this by using a different pathway

How can we take care of our brain?


Brain Builders-edited.pptx - Google Slides