SWAYAM "OER for Empowering Teachers"

This group is created to facilitate the submission of OER Projects for the SWAYAM MOOC on OER.
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All resources in SWAYAM "OER for Empowering Teachers"

What Is an Atomic Clock?

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The clock is ticking: A technology demonstration that could transform the way humans explore space is nearing its target launch date of June 24, 2019. Developed by NASA's Jet Propulsion Laboratory in Pasadena, California, the Deep Space Atomic Clock is a serious upgrade to the satellite-based atomic clocks that, for example, enable the GPS on your phone. Ultimately, this new technology could make spacecraft navigation to distant locations like Mars more autonomous. But what is an atomic clock? How are they used in space navigation, and what makes the Deep Space Atomic Clock different? Read on to get all the answers.

Material Type: Module, Primary Source, Student Guide, Teaching/Learning Strategy

mechanism of salt tolerance

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Owing to their sessile lifestyle, plants are continuously exposed to a broad range of environmental stresses. The main abiotic stresses that affect plants and crops in the field are being extensively studied. They include drought, salinity, heat, cold, chilling, freezing, nutrient, high light intensity, ozone (O3) and anaerobic stresses. Under natural conditions, combinations of two or more stresses, such as drought and salinity, salinity and heat, and combinations of drought with extreme temperature or high light intensity are common to many agricultural areas around the world and could impact crop productivity. A major challenge towards world agriculture involves production of 70% more food crop for an additional 2.3 billion people by 2050 worldwide. Salinity is a major stress limiting the increase in the demand for food crops. More than 20% of cultivated land worldwide (about 45 hectares) is affected by salt stress and the amount is increasing day by day. Plants on the basis of adaptive evolution can be classified roughly into two major types: the halophytes (that can withstand salinity) and the glycophytes (that cannot withstand salinity and eventually die).Majority of major crop species belong to this second category. Thus salinity is one of the most brutal environmental stresses that hamper crop productivity worldwide.

Material Type: Lecture

Author: nithila sivabalan

Evidence-based teaching resources for undergraduate biology education om Biochemistry and Molecular Biology

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CourseSource is an open-access journal of peer-reviewed teaching resources for college biological science courses. A key feature of CourseSource is the alignment of articles with scientific professional society developed learning goals and objectives. CourseSource provides authors with the opportunity to publish teaching materials in a high-quality format that documents their scholarly teaching efforts, accomplishments and innovations.

Material Type: Primary Source

Authors: Ellis Bell, Kristin Fox, Neena Grover

ACESSE Resource B - How to Assess Three-Dimensional Learning in Your Classroom

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The NRC Framework for K-12 Science Education and the resulting Next Generation Science Standards focus on an integrated three-dimensional view of science learning in which students develop understanding of core ideas of science and crosscutting concepts in the context of engaging in science and engineering practices.How is assessing three-dimensional science learning different than how we have thought of science learning in the past? How can we design assessment tasks that elicit student’s current understanding of specific aspects of the disciplinary core ideas, science and engineering practices, and crosscutting concepts in order to shape future instruction? In this workshop, participants will learn how to interpret and design cognitive formative assessment to fit a three-dimensional view of learning.This resource originates from a series of PD sessions on 3D formative assessment developed and provided by Katie Van Horne, Shelley Stromholt, Bill Penuel, and Philip Bell. It has been improved through a collaboration in the ACESSE project with science education experts from 13 states. Please cite this resource as follows:Stromholt, S., Van Horne, K., Bell, P., Penuel, W. R., Neill, T. & Shaw, S. (2017). How to Assess Three-Dimensional Learning in Your Classroom: Building Assessment Tasks that Work. [OER Professional Development Session from the ACESSE Project] Retrieved from http://stemteachingtools.org/pd/SessionB

Material Type: Module

Authors: Sarah Evans, Philip Bell, Shelley Stromholt, Katie Van Horne, WILLIAM PENUEL, Sam Shaw, Tiffany Neill


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Polyploids is common plants and not in animals. Polyploid is classified into eupolyploid and aneuploid. Auto and allo polyploid is important in crop improvement. Autopolyploid is important in seedless crop development and allopolyploid is important in evolution

Material Type: Activity/Lab

Author: Shanthi Palaniappan