Secondary Biology: A Practical Approach is a comprehensive manual designed to assist Secondary school teachers and students in preparing for and performing Biology investigations based on the Kenya Certificate of Secondary Education (KCSE) examination. The publication features practical work derived from the Secondary School Biology syllabus and provides sample questions and answers, thereby giving the learner a clear clue on the kind of challenges met during Biology practical sessions or examinations at the level. While adequately preparing Biology candidates for KCSE, the book positively responds to the need for students to appreciate subject concepts through the much-desired practical approach. The Manual offers useful tips on the correct use of laboratory instruments as well as the basic theory behind common Biology investigations done at the Secondary School level. With elaborate diagrams and clear instructions, the book enables the student to carry out Biology experiments with little assistance and at the same time serves adequately as the Teacher's Guide for practical work.