Keys To Trees: Dichotomous Tree Identification
Ninth graders gather samples of different tree leaves in their neighborhoods, and on school grounds, and identify several species of common South Carolina trees using leaf and growth characteristics with aid of dichotomous key.
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Use of Dichotomous Keys to Identify Stream Organisms
What kind of organisms are living in the stream? After an explanation on how to use a dichotomous key, groups of three to four use the keys to identify macroinvertebrates from a local freshwater stream. Using the the concept of Stream...
8th - 12th Science
Determining Stream Health by the Diversity and Types of Benthic Organisms
How diverse are the benthic organisms found in local streams? Using the information learned in previous lessons on identification of macroinvertebrates and on calculating stream index values, groups determine the health of local streams....
8th - 12th Science
Teaching Photosynthesis and Cellular Respiration in Tandem
Rather than teaching photosynthesis and cellular respiration as individual topics, present them as a combined concept. Young scholars use websites to research and answer questions before organizing a concept map. The second day is much...
9th - 12th Science CCSS: Adaptable
New Review Sustainable Cities
Investigate aspects of sustainable cities and relate them to where you live! A detailed instructional activity first investigates the definition of sustainability. Learners then explore human impact on the environment and social justice....
9th - 12th Science CCSS: Designed
What's Hidden Among the Tallest Trees on Earth?
Hidden hundreds of feet above the ground in the redwoods of Northern California is a whole world that was just waiting to be discovered. This video tells the story of Stephen Sillett who, inspired by his grandmother, set out to explore...
5 mins 6th - 12th Science CCSS: Adaptable