Embryonic stems cells were only first discovered in 1998 — less than 20 years ago. The video explains what stem cells are (both pluripotent and totipotent), how they become specific types of tissues cells via internal cues such as the cells location in the blastula or transcription factors, or external cues such as the SrY gene in embryos or a change in temperature. 

Concepts

cells, tissues, organ systems, specialization

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Additional Tags

science

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Instructional Ideas

• Preview extra videos referenced at the beginning of this video and incorporate into your class where appropriate
• Use different strategies to reinforce vocabulary used in video: word walls, Frayer models, flashcards, or vocab apps

Classroom Considerations

• Classroom must have a computer, projection system, and access to the Internet 
• The 11th in a 37-part series

Pros

• The video references and links to two other videos that support cellular specialization, specifically about growing new organs
• Great visuals supporting cell differentiation
• Includes cellular specialization review worksheet

Cons

• None

Common Core

RST.11-12.4