I teach the upper grades in my school, yet I continue to see kids who do not even have basic algebra skills in place. As a parent, I'm very aware of what my own children are learning in school. For the most part, I've been happy with their progress, but as they rise in grade level, I'm starting to see more emphasis on a loose understanding of the concepts and less emphasis on skills__particularly skills with arithmetic of fractions. The main problem with what I see with my students and my own children is that kids are taught "concepts" and are not taught skills__unless they're lucky enough to have a teacher who knows better. Most particularly, children are not taught mastery of arithmetic with fractions. Unfortunately, virtually all of their future math education depends on being able to do fractional arithmetic.
Which brings us to the purpose behind this article. One of the most effective ways I've found to help kids in a focused area of weakness are printable math worksheets. The big problem with concept_based instruction is lack of practice. Printable math worksheets solve this problem nicely. As a teacher, I supplement my lessons with appropriate worksheets. I can then check a student's progress. I can also monitor how much work they actually are doing. For parents, printable math worksheets are a great tool for drilling their own kids in those same skills. Make no mistake, printable math worksheets are not a relic from the past that needs to stay buried. They are useful, focused tools for the classroom or at home. You can find resources all over the web for worksheets. Finding answers for worksheets, however, is not that easy. For that you often have to use paid subscription services.