Science Education,
Journal Year:
2022,
Volume and Issue:
106(3), P. 739 - 764
Published: Feb. 16, 2022
Abstract
Science
teaching
anxiety
is
negative
emotion
that
inhibits
a
teacher's
ability
to
start,
proceed,
or
finish
science
task.
Despite
its
detrimental
effects
on
teachers'
quality
and
practices,
there
limited
research
anxiety.
To
advance
in
this
area,
need
for
psychometrically
sound
instrument
assessing
This
study
presents
the
development
psychometric
properties
of
Teaching
Anxiety
Scale
(STAS)
preservice
elementary
teachers
(
N
=
191)
using
Rasch
analysis.
In
addition,
it
examines
relationships
among
anxiety,
interest,
efficacy
(self‐efficacy
outcome
expectancy).
Results
indicated
STAS
has
promising
validity
reliability
use
future
research.
Moreover,
interest
were
significant
predictors
self‐efficacy
teachers.
Implications
researchers,
teacher
educators,
individuals
who
work
with
new
are
discussed.
Journal of Research in Science Mathematics and Technology Education,
Journal Year:
2024,
Volume and Issue:
unknown, P. 43 - 59
Published: May 30, 2024
The
purpose
of
this
mixed-methods,
sequential,
explanatory
study
was
to
investigate
elementary
mathematics
and/or
science
teachers’
self-efficacy
for
implementing
integrated
science,
technology,
engineering,
and
(STEM)
instruction
through
a
project-based
learning
(PBL)
approach
in
the
classroom.
Further
explored
were
perceived
barriers
needed
supports
effective
implementation
STEM
education
using
PBL
approach.
Participants
(n
=
43)
included
teachers
from
seven
local
school
districts
single
southeastern
state
U.S.
Quantitative
data
collected
Confidence
Questionnaire,
qualitative
focus
group
interviews
responses
open-ended
questions
within
questionnaire.
Item-level
analysis
showed
that
teacher
lowest
developing
both
formative
summative
assessments,
while
confidence
levels
gaining
students’
interest
motivation
new
appropriate
technologies
reported
as
highest.
Results
indicated
lessons,
several
preventing
them
doing
so
identified.
Various
also
discussed
including
administrative
support,
additional
resources,
adequate
training
aid
successful
Polymers,
Journal Year:
2024,
Volume and Issue:
17(1), P. 43 - 43
Published: Dec. 28, 2024
The
popularity
of
3D
printing
technology
is
rapidly
increasing
worldwide.
It
can
be
applied
to
metals,
ceramics,
composites,
hybrids,
and
polymers.
Three-dimensional
has
the
potential
replace
conventional
manufacturing
technologies
because
it
cost
effective
environmentally
friendly.
This
paper
focuses
on
influence
conditions
physical
mechanical
properties
polylactic
acid
(PLA),
poly(methyl
methacrylate)
(PMMA),
poly(ethylene
terephthalate
glycol-modified)
(PETG)
materials
produced
using
Fused
Deposition
Modeling
(FDM)
technology.
impact
nozzle
diameter,
layer
height,
temperature
(i.e.,
bending
stiffness
vibration
damping)
sound
absorption
light
transmission)
studied
polymer
was
investigated.
concluded
that
significantly
influenced
structure
surface
shape
3D-printed
samples
and,
consequently,
their
properties.
Therefore,
essential
consider
type
filament
used
for
specific
material
applications.
Rapid Prototyping Journal,
Journal Year:
2019,
Volume and Issue:
25(7), P. 1169 - 1186
Published: July 30, 2019
Purpose
This
paper
aims
to
apply
a
robust
methodology
establish
relationships
between
user-configurable
process
parameters
of
commercial
desktop
stereolithography
(SLA)
printers
and
dimensional
accuracy
custom-designed
test
artifact.
Design/methodology/approach
A
detailed
response
surface
study,
Box–Behnken
incomplete
factorial
design
four
factors
with
three
levels,
was
carried
out
evaluate
performance
SLA
printers.
The
selected
were
as
follows:
printing
orientation
angle
in
x-direction,
y-direction,
position
on
build
platform
spatial
x-coordinate,
tray
y-coordinate
layer
thickness.
proposed
artifact
designed
include
12
feature
groups
including
thin
walls,
holes,
bosses,
bridges
overhangs.
Two
responses
associated
the
features:
deviation
according
value
minimum
size.
Findings
Layer
thickness
most
significant
factor
70%
analyzed
responses.
For
example,
measurement
reduced
about
90%
when
cylindrical
holes
printed
lowest
Further,
many
cases,
minimized
for
features
at
center
platform,
where
beam
cures
resin
straight
line.
However,
distant
positions,
could
be
improved
by
compensating
changing
object
angle.
Originality/value
findings
this
study
can
serve,
both
generally
specifically,
designers
engineers
who
wish
optimize
variables
location
achieve
high-dimensional
further
understand
coupled
considerations
among
part
design,
configuration
performance.
TechTrends,
Journal Year:
2023,
Volume and Issue:
67(6), P. 990 - 1006
Published: Nov. 1, 2023
Abstract
Owing
to
its
advantages
such
as
producing
durable
models
and
easy
accessibility,
3D
modeling
printing
(3DMP)
has
become
increasingly
popular
in
educational
practice
research.
However,
the
results
of
many
studies
have
shown
that
adoption
rate
3DMP
among
teachers
is
still
low,
especially
elementary
schools.
Therefore,
research
needed
expand
current
knowledge
about
what
influences
teachers'
decisions
start
continue
using
To
investigate
factors
affect
school
use
teaching,
this
study
uses
a
mixed
methods
approach
combining
binary
logistic
regression
with
qualitative
thematic
analysis
approach.
Both
approaches
assembled
predictive
constructs
from
range
theories
on
(1)
technology
acceptance
(2)
intentions
or
abandon
use.
Using
sample
225
Montenegro,
empirically
concluded
discontinue
was
slightly
more
strongly
correlated
predictors
(i.e.,
performance
expectancy,
effort
perceived
pedagogical
impact,
personal
innovativeness,
management
support,
user
interface
quality,
compatibility,
social
influence,
student
expectations)
than
.
Performance
expectancy
significant
determinant
teachers’
continued
The
remaining
seven
(constructs)
were
found
be
insignificant
predictors.
Perceived
impact
compatibility
significantly
associated
3DMP.
Our
also
suggest
time
required
during
instruction,
implementation
curriculum
activities,
availability
printers
are
all
relevant
influence
teachers’'
decision
Science Education,
Journal Year:
2022,
Volume and Issue:
106(3), P. 739 - 764
Published: Feb. 16, 2022
Abstract
Science
teaching
anxiety
is
negative
emotion
that
inhibits
a
teacher's
ability
to
start,
proceed,
or
finish
science
task.
Despite
its
detrimental
effects
on
teachers'
quality
and
practices,
there
limited
research
anxiety.
To
advance
in
this
area,
need
for
psychometrically
sound
instrument
assessing
This
study
presents
the
development
psychometric
properties
of
Teaching
Anxiety
Scale
(STAS)
preservice
elementary
teachers
(
N
=
191)
using
Rasch
analysis.
In
addition,
it
examines
relationships
among
anxiety,
interest,
efficacy
(self‐efficacy
outcome
expectancy).
Results
indicated
STAS
has
promising
validity
reliability
use
future
research.
Moreover,
interest
were
significant
predictors
self‐efficacy
teachers.
Implications
researchers,
teacher
educators,
individuals
who
work
with
new
are
discussed.
