Each person or family you teach is unique. Regardless of needs or problems, all people are best helped as they accept and live the gospel. You will be able to adjust your teaching as you listen to the promptings of the Spirit.
Heavenly Father knows His children, so rely on inspiration to make these decisions as you teach. Pray for the gift of discernment, and pay attention to thoughts that come to your mind or feelings you have about what to teach.
Trust in the promise that the Spirit will give you “in the very hour, yea, in the very moment, what ye shall say.” (Doctrine and Covenants 100:6).