From left: vehicle 车/車, to give birth, educate 育 (The new born baby [=child 子 upside down, as head first at birth] has a body 月, that is born and raised), strike 攵
Mnemonic
The vehicle creates (= gives birth) with every strike (=pothole) a track/rut.
The app has many other functions, such as character selection according to difficulty, practice programs, handwriting recognition and success statistics!