A catechism (from Greek: κατηχέω, "to teach orally"), is a summary of doctrine that serves as a learning introduction to biblical Christian teaching. Catechisms are doctrinal manuals, often in the form of questions followed by answers to be memorized.
While rote memorization (as catechism is often falsely reduced to) does not result in transformation or salvation, it does do two very important things for the benefit of children. First, it instructs them in the way of the Lord. As parents, we are responsible for teaching them the Christian life as well as living it out before them. This instruction informs them as to who God is and what we must do to know Him forever. Second, it is a way to actively and prayerfully demonstrate faith that the Lord will lead them to Himself. If we believe that the Word of God is alive and active, we will frequently plant the seeds of the Gospel of God in their hearts through their minds, as we pray to the Lord to save them.