This material is the third episode of Season 2 of "GoDoongDoong Symphony." The main characters arrive at a vast canyon where echoes reverberate, allowing them to experience how their sounds are transformed and returned, inspiring their musical imagination.

[Suggested Lesson Plan]

Introduction (5 minutes): Capture interest in echoes by asking, "What happens if you shout in a cave or on a large mountain? Does our sound travel to visit a friend?"

Development (15 minutes): Understand the principle of echoes by watching an animation.

Watch the video demonstrating how the characters' sounds echo repeatedly off the canyon walls.
On your second viewing, notice how the dynamics change as the echo's volume gradually diminishes. Mark the rhythm intervals of the

returning sound by clapping your hands.

Conclusion (10 minutes): Play a 'Class Echo Game'. One child performs a short rhythm, and the others respond by echoing it progressively more softly and gently, allowing them to experience the resonance of the space through an 'echo ensemble'.

[Teaching Notes]

Spatial Awareness: Explain how sound occupies empty space. Help children understand that music is not merely a sequence of sounds but something created in harmony with the surrounding space.

Introduction to Dynamics: Link the fading of echoes to the musical term 'decrescendo', enabling children to become familiar with professional terminology in a natural way.