Slicing the Pie: Interpreting Harmful Algal Blooms One Pie Chart at a Time

Autor/inn/en	Richlen, Mindy L.; Curran, Mary Carla; Chadwick, Christina; Hubbard, Katherine A.
Titel	Slicing the Pie: Interpreting Harmful Algal Blooms One Pie Chart at a Time
Quelle	In: Science Activities: Projects and Curriculum Ideas in STEM Classrooms, 59 (2022) 4, S.180-190 (11 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0036-8121
DOI	10.1080/00368121.2022.2106172
Schlagwörter	Oceanography; Science Activities; Marine Biology; Marine Education; Data Science; Graphs; Hazardous Materials; Visual Impairments; Climate; Science Process Skills; Middle School Students; Sampling + Suchen Sie Ihr Suchwort? Ozeanografie; Meeresbiologie; Grafische Darstellung; Hazardous substance; Gefahrstoff; Visual handicap; Sehbehinderung; Klima; Middle school; Middle schools; Student; Students; Mittelschule; Mittelstufenschule; Schüler; Schülerin
Abstract	The Earth's oceans are home to a diverse array of life, from large marine mammals to microscopic organisms. Among the most important are the marine phytoplankton, which comprise the basis of marine food webs, and also produce a large percentage of the Earth's oxygen through photosynthesis. Although the vast majority of phytoplankton are essential to ocean health, several dozen species produce potent toxins, and can form what are called Harmful Algal Blooms (HABs). This science activity focuses on the importance of HABs, as well as the types of data scientists collect to understand blooms. In the classroom exercises, students will calculate the proportional abundance (% contribution) of five HAB species present in water samples, and use these data to create pie graphs to depict species composition. Students will then compare these results with levels of HAB toxins in water samples collected over the same time period. Thought questions challenge students to develop hypotheses regarding how changes in the HAB community may relate to observed trends in toxin concentrations. This activity was successfully taught to visually impaired students who were able to complete the pie charts and answer the thought questions. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01