;e new regulations also modify
distribution, possession, and use requirements for small quantities of
source material that can be used or
transferred without a specific license.
Distributors of small quantities must
now apply for specific licenses. For
source material being processed or
in a dispersible form, such as liquid
or powder, the limit on the use or
transfer at any one time without a
license has decreased from 15 to 3. 3
lbs.; the annual limit drops from 150
to 15. 4 lbs. Limits have not changed
for anyone possessing source material in a solid, non-dispersible form
(such as display samples of depleted
uranium metal), removing uranium
from drinking water, or determining
the concentration of uranium and
thorium in a material at a laboratory.
Finally, the new regulations expand
the exemption from licensing for optical lenses containing thorium to include lenses and mirrors coated with
or containing uranium or thorium.
;ese products are typically used in
lasers or other high-technology optical systems.
;ese new license requirements
and possession limits are intended to
ensure those who possess source material do so safely, and that the NRC
has a better understanding of how
much source material is being distributed annually.
Sierra College takes
applied approach to
teaching critical thinking
In response to the growing demand
for graduates with critical thinking
skills, the Sierra College STEM Collaborative, Rocklin, Calif., has established a professional development
program: Applied Critical ;inking
for Advanced Technological Education (ACTivATE).
In June faculty from Northwestern
Searle Center for Advancing Learning
and Teaching trained 12 Sierra College
and high school faculty to develop
curriculum that incorporates applied
critical thinking. ;rough a National
Science Foundation (NSF) grant—
Enhancing Critical ;inking in STEM
Disciplines: A Faculty Development
Model—the Searle Center designed,
piloted, and studied a science, tech-
Sierra College takes applied approach to teaching critical thinking (continued) NRC finalizes rules on
using and distributing
uranium, thorium (continued)
nology, engineering, and mathematics (STEM) faculty development program focused on improving higher-order
learning outcomes of STEM students.
“;e strong ties that Sierra College has with employ-
ers will lead to the incorporation of current workplace
applications into critical thinking lessons. Faculty will be
able to use real examples from local businesses,” said Carol
Pepper-Kittredge, director of the Center for Applied Com-
petitive Technologies (CACT) and manager of the Sierra
College STEM Collaborative.
;rough April 2014 the ACTivATE project will support
participants as they develop new approaches to teach applied critical thinking in their classrooms. Instructors also
will develop and test hands-on demonstrations to assess
students’ understanding and align with the new common
core state standards.
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