What most naturally follows?

How to get your child ready for algebra
Consider your child's age.
Some educational researchers, such as dr. herman epstein, believe the human brain has periods of rapid development and periods where little development occurs, one of which coincides with a physical growth spurt during the ages 14 to 17, the high school years.
Consider your child's level of maturity.
Your child should show some general problem-solving skills, be able to draw conclusions from logical reasoning, and be able to organize projects. Be aware of the math curriculum in your child's school district.