First, "through the Woods."
The first bar begins with the third weak note. Don't play the first note in your left hand too strongly, or you will mistakenly think that this note is the tonic of this track. The correct playing method should be to emphasize the first sound of the second bar, because this sound is the beginning of the main theme of this piece.
Second, "The Sun is Rising".
The temporary "flat" sign in this track is slightly flatter than the letter B, and the "temporary flat" is immediately before the notes. Only half a tone lower than the original sound (1/2); The position is the black keys in the upper left corner of each white key except fa (mi in flat) and do (si in flat). It only works in this section, and the original sound is restored across the section.
Third, "Oh, Susanna".
Let children know that si and re clef are written in two different ways, but they have different shapes and play the same sound. From now on, children should understand that many factors such as notes and fingering in piano learning are not fixed, and they should learn to use them flexibly and master them flexibly.