Developing an Explanation for Tuskless Elephants
This activity builds on information presented in the video Selection for Tuskless Elephants. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations.
In this activity, students complete three tasks: 1) interpret and collect information presented through readings and watching a video; 2) use the information collected to construct an explanation for the high incidence of tusklessness in the Gorongosa elephant population; and 3) develop an argument for or against a trend toward increased incidence of tusklessness in the future.
Student Learning Targets
Use scientific observations to explain how a population changes over time due to human impacts.
Explain how the selective pressures on a population may impact the frequencies of phenotypes in a population.
Propose a claim supported by scientific evidence to explain an observation.
Provide evidence-based reasoning to make a scientific argument.
adaptation, claim, evidence, inheritance, poaching, population, reasoning, selection, selective pressure, variation
HS-LS4-2, HS-LS4-3, HS-LS4-4, HS-LS4-5; SEP1, SEP4, SEP6
EVO-1.E, EVO-1.G, SYI-2.B, SYI-3.D; SP3, SP4, SP5, SP6
Topic(s): 2.1, 2.6, 9.10
Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5
ELA.RST.9–12.4, ELA.RST.9–12.7, ELA.WHST.9-12.1
CC1, CC5; DP1