Use of instructional media resources plays an important role in enhancing learner's acquisition of number work skills. The pre-primary school learners number work skills are below average owning to inadequate use of instructional media resources which would be of great help if used to enhance the skills. Kiambu sub-county has four zone where the effort should be put in place. The headteachers and other education stakeholders should ensure that the media resources are availed to teachers while the ministry of education should ensure the usage of media resources as a critical component of pedagogy in pre-primary schools.