For one example, children need to be taught in a gender-equal way that new human life is created by a man AND woman, and that BOTH are responsible for their offspring's existence and welfare. Inequality breeds inequality. In particular, any inequality presented to girls WILL be percieved as unfair, and make them vulnerable to adopting the pro-choice viewpoint later in life.
Just as children instinctively understand the value of life, they also understand the basic concepts of justice and equality. If we are saying ALL life is of equal value, we cannot then turn around and promote that some people are more responsible than others for the consequences of their actions.
The "culture of life" has to embody the concept of equal personal responsibility as an irrefutable moral premise.