Longhorn Competence-Based Smart Score Encyclopaedia Grades 1 - 3 series is designed to give learners 
opportunities to do more practice on the competences envisaged in the new CompetenceBased 
Curriculum for Kenyan Primary Schools. The six books in the Series are:
- Longhorn Competence-Based Smart Score Encyclopaedia Grade 1 Volume 1 
- Longhorn Competence-Based Smart Score Encyclopaedia Grade 1 Volume 2
- Longhorn Competence-Based Smart Score Encyclopaedia Grade 2 Volume 1, 
- Longhorn Competence-Based Smart Score Encyclopaedia Grade 2 Volume 2 
- Longhorn Competence-Based Smart Score Encyclopaedia Grade 3 Volume 1 
- Longhorn Competence-Based Smart Score Encyclopaedia Grade 3 Volume 2