OpenStax
Open Stax: Anatomy and Physiology: Types of Tissues
The term tissue is used to describe a group of cells found together in the body. Although there are many types of cells in the human body, they are organized into four broad categories of tissues: epithelial, connective, muscle, and...
Khan Academy
Khan Academy: Tissues, Organs, & Organ Systems
Describes the main tissue types and organ systems of the body and how they function together.
Science Education Resource Center at Carleton College
Serc: Introduction to Human Tissues: How Are Tissues Classified?
In this investigation, students will observe slides of unknown tissues and then draw their observations in a science notebook. They will then work in groups to reach a consensus as to the classification of tissues. This activity is...
Open Curriculum
Open Curriculum: Organization of the Human Body
An illustrated article which helps students understand the levels of organization of the human body.
CK-12 Foundation
Ck 12: Biology: Organization of the Human Body
[Free Registration/Login may be required to access all resource tools.] Introduces cells, tissues, organs, and organ systems in the human body.
Exploring Nature
Exploring Nature Educational Resource: 4 Basic Tissue Types in the Human Body
Facts about four basic types of tissues in the human body and their functions.
My Science Site
Bj's Science: Epithelia, Connective Tissue, and Nervous Tissue [Pdf]
Reference sheet providing colorful illustrations of the different cell types that make up tissues.