Dash & Dot: Wave Hello, Wave Goodbye (Gr. 4)


Students may think of waves as shaking their hands hello and goodbye, but waves surround them in their everyday lives in many other ways.


  • Identity waves that exist in the world around you
  • Understand how waves transmit energy through a medium
  • Model the waves properties of amplitude, frequency, and wavelength
  • Create a program to make Dash move in a wave pattern

Lesson Procedure

  • Class 1: What are waves? (30 minutes)
  • Class 2: Amplitude and Wavelength (30 minutes)
  • Class 3: Dash Makes Waves (45 minutes)


Robots and Accessories

Other Supplies

  • 1 Blockly compatible tablet
  • Graphing Waves: Tall Wagging Sheet
  • Optional: pen, materials for pen holder and paper
  • 1 bucket of water
  • Floatable ball
  • Rope ( at least 4 feet long)
  • Speaker with an accessible cone
  • Sand or Rice
  • Tablets - (See Compatible Devices)

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