TY - BOOK AU - Kapolyo, Wesley Mutale TI - The investigating the impact of problem based learning methods on pupils' performance in permutation and combination: a case of Dominican Convent secondary school in Ndola district AV - CBU-PG THESIS/KAP PY - 2019/// CY - Kitwe PB - Copperbelt University KW - PUPILS' PERFORMANCE - MATHEMATICS KW - PROBLEM BASED LEARNING - MATHEMATICS KW - PERMUTATION AND COMBINATION - MATHEMATICS ER -