HolcombMath

Wednesday, March 03, 2010

Math 6 (Class 119)

Lesson Title
Investigation 4: Polygon Properties and Tiling

Overview
In today’s class students apply what they have learned about angles and polygons to investigate mathematical properties which may contribute to the fact that all bees create honeycombs using regular hexagons.
Textbook Sections
Problem 4.3 (Txt. p.46) Back to Bees!

Vocabulary
tiling
regular polygon
polygon
pentagon
hexagon
octagon
angle ruler
precisely
vertex

Key Attitudes
Willingness to work as a group to help meet individual and group goals.

Enduring Understandings
Change is fundamental to understanding functions.
Mathematical relationships can be represented in 4 main ways: Graphical, Numerical, Algebraic, Verbal (written and oral).

Essential Question
Why do we compare contrast and classify objects?
How do decomposing and recomposing shapes help us build our understand of mathematics?

Key Knowledge
An angle can be measured with an angle ruler.

Key Skills
I can find the sum of the interior angles of any covnex polygon.
I can justify the sum of the interior angles of a polygon by using previously agreed on facts.
I can use what I have learned about the sum of the interior angles of a polygon to develop a method for finding the sum of the interior angles of a polygonal star.

Turn-In (#-1)
“Interior Angles” worksheet

Handouts
No Handouts Posted

Assignment
ACE p.47 #4, 5
Mystery Number 4
Disclaimer- The assignment as stated in class is the official assignment. Every effort is made to keep this posting accurate, but you should refer to what was stated in class as the final word.

Math 7 (Class 119)

Lesson Title
Investigation 2: Similar Figures

Overview
In today’s class students continue to work with odds, probability, and ratios during the opener. During the lesson they continue to investigate what it takes to make two rectangle similar.
Textbook Sections
Problem 2.2 (Txt. p.18) Nosing Around

Vocabulary
similar
corresponding sides
corresponding angles
segment
ratio
perimeter

Key Attitudes
Willingness to work as a group to help meet individual and group goals.

Enduring Understandings
Change is fundamental to understanding functions.
Mathematical relationships can be represented in 4 main ways: Graphical, Numerical, Algebraic, Verbal (written and oral).

Essential Question
How can transformations be described mathematically?
How do different shapes compare to each other?
What is required for two shapes to be similar?

Key Knowledge
Certain properties of a shape are maintained when a shape is enlarged or reduced.

Key Skills
I can use the concept of odds or of probability to solve problems.
I can write and use a ratio related to odds, probability, or simialrity.
I can determine if two rectangles are similar by observation or by examining the lengths of the sides or the perimeters of the rectangles.

Turn-In (#-1)
ACE p.22 #11

Handouts
No Handouts Posted

Assignment
ACE p.22 #2 to 4
Disclaimer- The assignment as stated in class is the official assignment. Every effort is made to keep this posting accurate, but you should refer to what was stated in class as the final word.