1, the cha-cha step is a dance step full of energy and enthusiasm, which is usually used in Latin dance. Named after the rhythm of "cha-cha", there are usually 30-32 bars per minute with a rhythm of 4/4 beats. In the cha-cha, dancers dance with four beats and five steps, including two slow steps and three quick steps. Dancers need to show enthusiasm, neat fancy, fast pace and humor. This dance originated in Africa, then spread to Latin America and developed in Cuba.
2. Lock step is a smoother and more elegant dance step, which is usually used in modern jazz dance or other modern dances. This is a change of Chassé, but the feet connected together become crossed. There are two basic forms of lock step: front lock step and back lock step, and side lock step. In the lock step, the dancer can move back and forth smoothly with one foot in front or behind the other. Lock step is usually used to express emotions and dynamic changes in dance, and sometimes it is also used to connect different movements or footwork.