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Lesson summary for:
Two- and ten-minute trees

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Overview:
Use these quick and simple classroom activities to better develop your students' tree-thinking skills. Each takes just a few minutes and helps reinforce key ideas about tree reading and common ancestry.

Author/Source:
UC Museum of Paleontology

Grade level:
13-16

Time:
2-10 minutes

Concepts:
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.

  • Through billions of years of evolution, life forms have continued to diversify in a branching pattern, from single-celled ancestors to the diversity of life on Earth today.

  • Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.

  • Evolutionary trees (i.e., phylogenies or cladograms) portray hypotheses about evolutionary relationships.

Teacher background:

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