Welcome to Piano Adventures and one of the important core books - Theory. The theory book offers written work and "creative play" for basic theory concepts. As a child begins to learn simple keyboard pieces, it is indispensable also to understand the building blocks that underlie the music.
At the Primer Level, this requires understanding the staff, grand staff clefs, basic note values and rhythm patterns, steps and skips, and more. Especially for the beginner, developing "theory thinking skills' boosts understanding of the complex language of music.