Curated OER
Endosymbiosis: A Friend Within
Students research the ecological principle of symbiosis. Using a microscope, students observe the relationship of mutualism between termites and flagellates. Students examine a live termite and protozoans. They discuss the principles...
Curated OER
Time Conceptualization
Students use this activity to establish a new mode of reference to the conceptualization of time. To present hominid evolution in terms of millions of years and endosymbiosis of eukaryotes in billions of years carries little meaning to...
Curated OER
Time Conceptualization
Pupils relate the number and length of generations in their living family members to the number of generations that have passed since specific events in recorded history. They then apply this time conceptualization to the number of...