Sunday School did provide the foundation stone for the formation of the St Andrews Mar Thoma Church. In order to instill the teachings of the Bible and lay the Christian foundation for the younger generations, members from the Los Angeles Mar Thoma Church started the Sunday School in North area in the year 2001. The parents while waiting for their children to learn the word of God; did indulge in brainstorming and thinking actively for having this small group of people form a parish. Thus Sunday School was instrumental in sowing the seeds of what is now St Andrews Mar Thoma Church.
Sunday School comprises of children from different age group. Sunday School starts @ 04:30 pm every Sunday followed by worship service @ 06:00 pm. Children are taught new songs and they actively participate in various church and Sunday school activities. Children are taken to witness plays related to biblical themes/stories which embeds the bible into their minds.