Achieve both speed and accuracy!  

Errors can become a habit. 6-week power training for minimizing the calculation errors
Through FACTO of Unit calculation power, learn math by unit to improve calculation skills
 
● Configuration.
: Compilation of booklets for each semester of elementary school 1st to 6th grader
- 1st grader 1st semester: 5 volumes
- 2nd grader 1st semester: 6 volumes
- 3rd grader 1st semester: 6 volumes
- 4th grader 1st semester: 6 volumes
- 5th grader 1st semester: 6 volumes
- 6th grader 1st semester: 6 volumes

● Features.
- It is a teaching material to improve calculation skills based on textbook.
- The standard study time for each grader-specific term material is 6 weeks. 
  It is a teaching material that lets children study on their own, 4 pages a day.
- It is a teaching material that contains all the essential concepts that children must 
  know and is optimized for all of the preceding, following, and current learning.