As children become more confident in their math skills, give them worksheets one grade level above their current grade. Help them if necessary, but when students become successful in the upper level workbooks; their confidence will really improve. The seed will be planted early and parents can watch as it grows.
The 1st grade worksheets can also used by parents to bridge between kindergarten lessons & 2nd grade program. It happens on many occasions that children forget or feel unable to recollect the lessons learnt at the previous grade. In such situations, 1st grade worksheets become indispensable documents for parents as well as students.
Another recommendation for parents is to not allow children to utilize calculators at an early age. Children need to first develop their brains to be able to do mathematical computations on their own. Constantly using calculators at a young age can stunt the mathematical growth of children. If children develop math skills by mentally thinking of the answer to simple problems, they will be better prepared for everyday life, such as grocery shopping, balancing a checkbook, to name a few.
I have observed teachers who really challenge their students to achieve higher order thinking These teachers take their students as early as the Second Grade and teach them how to add, subtract, multiply and divide using only their bran. We call this Mental Math. When I observed a Second Grade Class that had their students mentally answering math computation questions, I put my own son in that class. Shortly after being enrolled, He, too, learned how to do Mental Math. From that point on, math was my son's best subject. Teachers can really make a difference and parents can help affect change.