Download August 24-28 - Rowan County Schools

February 06-10, 2012
Rowan County High School
I
Geometry B
Unit Title:
Learning
targets
Monday’s
I can describe
Target
the
relationship
between a 1central
angle2inscribed
angle, 3circumscribed
angle and the
arc it
intercepts
Tuesday’s
Same as last
Target
week
Wednesday
and Thursday
Wednesday’s I will
Target
calculate the
angles given
their
relationship
in a circle
Thursday’s
Review of
target
targets angles
and lengths
associated
with a circle.
Teaching strategies/differentiation
Assessment
-bellwork
-recall what is known about
circumference could relate here radian
to degree.
-powerpoint presentation of central
and inscribed angles and arcs.
-independent investigation exercise
with summary statement.
Add vertical angle relationship.
Review.
Observation
of
investigations
-Sentence
Summary
statement
-bellwork
-survey of 10.5 and 10.1 section in
text. Note: some sections I select the
problem to defend, others I let student
explain a problem of their choosing to
explain.
-use bright storm videos for review
during work time/interview time.
Select several application problems.
Student
interview
student
works/studies
section of
problems,
then explains
how they
solved
problems in
that section, I
question
parts of their
solution, they
defend their
solutions.
Guided notes
completed
Verbal
feedback.
Questioning.
Bellwork
Demonstrate with geogebra
Power point slides.
Guided note
Individual practice
Review.
Bellwork
Review pages
Or
Observation
and verbal
feedback
Equation of a circle
Or
Friday’s
target
I will sketch a
circle given
h,k.and radius
and vice
versa
I will review
my
fundament
algebra skill;
solving
equations
Graphing 2
variable
equations
Bellwork demonstration rate
Bright storm video
Practice application from
www.wcpss.net/success-series/hsalgebra1/video/algebra1-lesson-lesson8.html?size=success
Guided practice
Individual practice
Review.
Extension relate to parallel and
perpendicular
Discussion,
verbal feed
back
Exit slip
Cluster- Understand and apply theorems about circles
Standard identify and describe relationships among inscribed angles, radii and chords
Standard construct a tangent line form a point outside a given circle to the circle
Standard derive using similarity the fact that the length of the arc intercepted by an angle
is proportional to the radius, and define the radian measure of the angle as the constant of
proportionality; derive the formula for the area of a sector.
Vocabulary:
Circle, center, radius, diameter, congruent, chord, secant, tangent, tangent circles,
coplanar, concentric, common tangent. Interior/exterior of a circle, point of tangency,
central angle, minor arc, major arc semicircle, measure of a minor/ major arc, congruent
arcs, inscribed angle, intercepted arc, inscribed, circumscribed, tangent segment, secant
segment, external segment, standard equation of a circle, locus. Perpendicular, endpoint
of a circle, sector,