We highly recommend reading "More Diligent and Concerned at Home" by Elder Bednar. It can be found
https://www.lds.org/general-conference/2009/10/more-diligent-and-concerned-at-home?lang=eng
"We cannot afford to neglect this heaven-inspired program. It can bring spiritual growth to each member of the family, helping him or her to withstand the temptations which are everywhere. The lessons learned in the home are those that last the longest."- President Thomas S. Monson
What makes family home evening successful?
Start and end with prayer. This invites the Spirit, increases love, and teaches your family how to pray.
Learn from the scriptures and the words of latter-day prophets to help your family live the gospel.
Add music, such as hymns and Primary songs, to create an atmosphere of love, peace, and joy. Visit the music site →
Make it fun by playing games, acting out scripture stories, and making treats. Keep the atmosphere light and loving.
Add variety. Help a neighbor in need, hold a lesson at the park, or go for a walk as a family.
Be consistent. Monday nights are set aside by the Church for family home evening. If that doesn’t work, find a night that does.
From Elder Bednar's talk
"As our sons were growing up, our family did what you have done and what you now do. We had regular family prayer, scripture study, and family home evening. Now, I am sure what I am about to describe has never occurred in your home, but it did in ours.
Sometimes Sister Bednar and I wondered if our efforts to do these spiritually essential things were worthwhile. Now and then verses of scripture were read amid outbursts such as “He’s touching me!” “Make him stop looking at me!” “Mom, he’s breathing my air!” Sincere prayers occasionally were interrupted with giggling and poking. And with active, rambunctious boys, family home evening lessons did not always produce high levels of edification. At times Sister Bednar and I were exasperated because the righteous habits we worked so hard to foster did not seem to yield immediately the spiritual results we wanted and expected.
Today if you could ask our adult sons what they remember about family prayer, scripture study, and family home evening, I believe I know how they would answer. They likely would not identify a particular prayer or a specific instance of scripture study or an especially meaningful family home evening lesson as the defining moment in their spiritual development. What they would say they remember is that as a family we were consistent.
Sister Bednar and I thought helping our sons understand the content of a particular lesson or a specific scripture was the ultimate outcome. But such a result does not occur each time we study or pray or learn together. The consistency of our intent and work was perhaps the greatest lesson—a lesson we did not fully appreciate at the time.
In my office is a beautiful painting of a wheat field. The painting is a vast collection of individual brushstrokes—none of which in isolation is very interesting or impressive. In fact, if you stand close to the canvas, all you can see is a mass of seemingly unrelated and unattractive streaks of yellow and gold and brown paint. However, as you gradually move away from the canvas, all of the individual brushstrokes combine together and produce a magnificent landscape of a wheat field. Many ordinary, individual brushstrokes work together to create a captivating and beautiful painting.
Each family prayer, each episode of family scripture study, and each family home evening is a brushstroke on the canvas of our souls. No one event may appear to be very impressive or memorable. But just as the yellow and gold and brown strokes of paint complement each other and produce an impressive masterpiece, so our consistency in doing seemingly small things can lead to significant spiritual results. “Wherefore, be not weary in well-doing, for ye are laying the foundation of a great work. And out of small things proceedeth that which is great” (D&C 64:33). Consistency is a key principle as we lay the foundation of a great work in our individual lives and as we become more diligent and concerned in our own homes.
http://www.lds.org/topics/family-home-evening?lang=eng