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What Makes a Weed a Weed? (for 3-5 Educators)
Unrestricted Use
CC BY
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This professional development course consists of a series of workshops focused on NGSS-aligned & local phenomenon-centered curriculum, developed by IslandWood with funding from the OSPI ClimeTime Grant. It is currently structured to be delivered online and for Upper Elementary (3-5) educators. A slide deck and accompanying handouts are available to complement the course outline. 

Subject:
Education
Elementary Education
English Language Arts
Environmental Science
Life Science
Physical Science
World History
Material Type:
Activity/Lab
Assessment
Full Course
Lesson Plan
Teaching/Learning Strategy
Author:
Brad Street
Date Added:
06/19/2021
A new laboratory activity to help students learn about allelopathy and experimental design
Unrestricted Use
CC BY
Rating
0.0 stars

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"A new report in the journal Biochemistry and Molecular Biology Education describes a laboratory activity meant to help students understand allelopathy – a type of chemical warfare used by plants to secure the resources needed to grow. In this process, plants release biochemicals that affect the growth or development of neighboring plants. It is a common tactic of invasive plant species. The mechanism has also been used in agricultural production systems as a sustainable and organic way to manage weeds and soil fertility. For example, horseradish produces the molecule sinigrin, which is hydrolyzed in the presence of the enzyme myrosinase to generate allyl isothiocyanate, or AITC. AITC has been shown to have allelopathic effects on lettuce, including reduced and delayed seed germination rates, decreased root hair growth, and decreased root length. Mustard green also contains AITC and is widely utilized to control weed growth in current agriculture production..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Applied Science
Biology
Chemistry
Health, Medicine and Nursing
Life Science
Physical Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
09/20/2019