Final answer:
During the Counter-Reformation, the Catholic Church did not change its main teachings, instead focusing on addressing problems within the church and implementing reforms.
Step-by-step explanation:
The Counter-Reformation, also known as the Catholic Reformation, was a period of reform within the Catholic Church in response to the Protestant Reformation. However, the main teachings of Catholicism did not change during this period. The Catholic Church reaffirmed its doctrines, such as the requirement of good works and faith for salvation, as well as the authority of scripture and tradition. The Counter-Reformation focused on addressing real problems within the church and implementing reforms, but it did not alter the core teachings of Catholicism.