TY - GEN AU - Kasala, Phineas TI - Effective use of mobile technology of WhatsApp on learners conceptual understanding and problem-solving skills in Thermal physics: a case of grade 11 pupils at Mufulira secondary school AV - CBU-PG THESIS/KAS PY - 2021/// CY - Kitwe PB - Copperbelt University KW - MOBILE TECHNOLOGY KW - THERMAL PHYSICS KW - PROBLEM SOLVING SKILLS N1 - Includes bibliographical references and appendices ER -