Find your landmark.
Look for two black keys together. C is the white key immediately to their left. Then the white keys continue D, E, F, G, A and B before the pattern repeats.
In this exercise, C4 means middle C. The rightmost C key is C5, an octave higher; it is a different pitch.
Connect it to the staff.
In treble clef, the five lines from bottom to top are E, G, B, D and F. The four spaces are F, A, C and E. Middle C sits on a short ledger line below the staff.
The exercise uses C4, D4, E4, F4 and G4. Begin slowly. Recognizing a note matters more than racing the timer—so there isn’t one.