The addition, subtraction & number counting worksheets are meant for improving & developing the IQ skills of the kids, while English comprehension & grammar worksheets are provided to skill students at constructing error free sentences.
This teacher should believe in giving homework every night. Homework reinforces what was taught and learned in class and gives the parent and the teacher a chance to see if the child understands that information.
1st grade worksheets are used for helping kids learning in the first grade in primary schools. These worksheets are offered by many charitable & commercial organizations through their internet portals. The worksheets provide study materials to kids in a funky & innovative way, to magnetize them towards learning.
While the newer method does require computer access for every child, most schools now have that capability. As children do more hands-on learning on computers and less in books, these programs are capable of reaching them on a level they can understand.