How Can We Measure Elephant Populations?

Resource Type
Description
In this activity, students use an interactive tool to simulate how scientists collected and used sample data to estimate elephant population sizes.
The tool simulates methods shown in the Scientists at Work video The Great Elephant Census. It automatically records data as students measure habitat areas and count elephants. Students then make sense of the data and use it to help explain why these methods are important. A major goal of this activity is for students to use computational thinking to make sense of the numbers that are calculated by the tool. The questions provided in the “Student Handout” reflect student sensemaking, particularly around number sense.
The “Resource Google Folder” link directs to a Google Drive folder of resource documents in the Google Docs format. Not all downloadable documents for the resource may be available in this format. The Google Drive folder is set as “View Only”; to save a copy of a document in this folder to your Google Drive, open that document, then select File → “Make a copy.” These documents can be copied, modified, and distributed online following the Terms of Use listed in the “Details” section below, including crediting BioInteractive.
Student Learning Targets
- Use a model to simulate methods for measuring habitat areas and determining population densities.
- Analyze and interpret data to compare sample and total counts.
- Construct an explanation that provides reasoning for why sampling methods are used.
Estimated Time
Key Terms
aerial survey, census data, population density, sample count, survey method, total count, transect, tusklessness
Terms of Use
Please see the Terms of Use for information on how this resource can be used.
Accessibility Level (WCAG compliance)
Version History
NGSS 2013
HS-LS3-3, HS-LS4-3; SEP2, SEP3, SEP4, SEP5, SEP6
AP Biology 2019
EVO-1.F, EVO-1.G; SP1, SP2, SP3, SP4, SP5
IB Biology 2016
5.2
AP Environmental Science 2020
SP2, SP5, SP6
IB Environmental Systems and Societies 2017
2.1
Common Core 2010
MP1, MP2, MP4
Vision and Change 2009
CC1, CC5; DP2, DP3, DP6