Transcript Geometric Thinking Cohort Meeting 3 PPT

Geometry/Measurement
Cohort Meeting 3
8:30-3:30
November 20, 2008
Mid-Central Educational Cooperative
Check-In
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Ground Rules
Introductions
Lunch (11:30)
Quick Images
Problem-solving Activity
Use the trapezoid, the triangle,
and the blue rhombus from your
pattern blocks to complete parts A,
B, and C of this question.
 Taken from 3-5 Assessment
Sampler
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Measurement Concepts with
Tangrams
Using Nonstandard Units
-being able to measure something
without a tape measure is a skill
that students need to know how to
do but struggle with
Today we will focus on
Angles
What is an ANGLE?
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Jot down some ideas on what
you believe an angle is
Case Study-14
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What are Angles?
Game: Angle Measurement:
Questions to ask Students
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How do you know when one
angle is greater than another?
What benchmark angles can
you use to help estimate the
size of an angle?
Do the lengths of the sides of
the angles influence which angle
is greater?
Case Study-15
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Angles and Turning
This is an angle device that I
created
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to represent two rays that have
a common end point.
Walk around with a partner and
find different angles and write
down what kind of a turn that
was made to create an angle
Page 150-151 Sizing Up
Measurement 3-5
Exploratory Activity
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Using the measuring device that was
just created, how would I figure out
what a quarter, half, three-quarters
rotation would measure.
360 degrees is what a complete
rotation is worth. This is a fact. A
piece of information that you just
need to tell the students.
Talk about recipe card
Angles and Angle Measures
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Do activity 1-2 page 50-51 in FG
Activities from Geometry Camp
SEE GEOMETRY CAMP FOR
IDEAS AND ACTIVITIES
Video
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“What is an Angle”
Where are your students with
the definition of angles?
Talk at your tables-share large
group
An Assessment of Student’s
Angles
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A seven-day lesson plan
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Each group of 3 will read and be
ready to share with the large
group ideas on how to make
angles and exploratory activity
Chart paper and sharing
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Math Thinkers Article
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Everyone Needs a Positive
Story
Presentations
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Rose
Sheryl
Deb O.
Dodie
Kelsey
Karen
Leadership - Madison
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June 15 – 12:00
June 18 – 2:00
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Attending bonus
SD Counts 4-5-6
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Continue with meetings 2-3/year
Do you have new math leaders
who want to come on board
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Willing to teach mini foundations?
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Do you want to continue on as
math leaders?
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Last meeting
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December 18
Presenters-Joleen, Sherry,
Jolene, Karen, Renee
Read-Chapter 9 in Van De Walle
book-share 2 big ideas
Measurement Activity
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Cut 3 pieces of string. Ask the
students how long they believe the
string is and how do they know?