Set of 8 related 35mm images photographed through a microscope called photomicrographs. Arrows and call outs help the student locate important features. The film is mounted in a clear plastic holder that protects it on both sides. Each Microslide is accompanied by a detailed lesson plan designed to stimulate, inform and question students about the topic under study. Each lesson plan has a pocket in which the Microslide is stored. Lesson plans are printed on heavy tag stock and will serve for repeated use. Subject areas include Biology, Life Science, Health, Earth Science, Environmental Science and Elementary Science. It includes dissection materials, throat incision, thymus and thyroid glands, axial skeleton, spinal vertebrae, continuing of ventral dissection, diaphragm region, digestive track. booklet 2 includes cardio vascular system ,veins and arteries, major parts of the cardio-vascular-renal system, fetal pig heart, dorsal view, cranial cavity, fetal pig brain, urogential organs.