Download feb3-7 geometry week3 quads and symmetry

Monday, February 3, 2014
POTD
• The product on an array is 50. What are all the
possible dimensions?
• Make a factor rainbow.
Quadrilaterals
Quadrilateral Rap Review Video 1
http://www.youtube.com/watch?v=rh93AfCyOik
Shapes with 4 sides!
What shape is this?
Quadrilaterals
A Square
Quadrilaterals
How many lines of symmetry has a
Square got?
1
3
Quadrilaterals
4
2
Properties of a Square
 Has 4 equal sides
 Has 4 equal angles
 Each angle is a right angle
Quadrilaterals
 Has 4 lines of symmetry
 Is a regular shape
What shape is this?
Quadrilaterals
A Rectangle
Quadrilaterals
How many lines of symmetry
has a Rectangle got?
1
Quadrilaterals
2
Properties of a Rectangle
 Has 2 pairs of equal sides
 Has 4 equal angles
 Each angle is a right angle
Quadrilaterals
 Has 2 lines of symmetry
 Is an irregular shape
What shape is this?
Quadrilaterals
A Parallelogram
Quadrilaterals
How many lines of symmetry
has a Parallelogram got?
Quadrilaterals
None!
Properties of a Parallelogram
 Has 2 pairs of equal sides
 Has 2 pairs of equal angles
 Opposite sides are parallel
Quadrilaterals
 Has NO lines of symmetry
 Is an irregular shape
What shape is this?
Quadrilaterals
A Rhombus
Quadrilaterals
How many lines of symmetry
has a Rhombus got?
1
Quadrilaterals
2
Properties of a Rhombus
 Has 4 equal sides
 Has 2 pairs of equal angles
 Opposite sides are parallel
Quadrilaterals
 Has 2 lines of symmetry
 Is an irregular shape
What shape is this?
Quadrilaterals
How many lines of symmetry
does this Trapezoid have?
Quadrilaterals
None!
What shape is this?
Quadrilaterals
An Isosceles Trapezoid
Quadrilaterals
How many lines of symmetry
does this Trapezoid have?
Quadrilaterals
1
Because these angles are equal.
Properties of a Trapezoid
Quadrilaterals
 May Have unequal sides
If two sides are congruent then its called an Isosceles
trapezoid.
One pair of opposite sides are parallel
 Usually has NO lines of symmetry (unless its an
Isosceles trapezoid)
 Is an irregular shape
What shape is this?
Quadrilaterals
A Kite
Quadrilaterals
How many lines of symmetry
has a Kite got?
1
Quadrilaterals
Properties of a Kite
 Has 2 pairs of equal sides
 Has 1 pair of equal angles
Quadrilaterals
 Equal sides are adjacent (sharing a
common vertex)
 Has 1 line of symmetry
 Is an irregular shape
What shape is this?
Quadrilaterals
A Dart
Quadrilaterals
How many lines of symmetry
has a Kite got?
1
Quadrilaterals
Properties A Dart
Quadrilaterals
 Has 2 pairs of equal sides
Has an angle that is concave (exceeds
180°)
 Has 1 pair of equal angles
 Equal sides are adjacent
 Has 1 line of symmetry
 Is an irregular shape
Quadrilaterals
Quadrilaterals
Shapes with 4 sides!
Quadrilateral Sort
Quadrilateral Sort Cont’d
Quadrilateral Sort Cont’d
Quadrilateral Sort Cont’d
Math Club
Jeopardy
(saved in groups)
Tuesday, February 4, 2014
The potato chip was invented in 1853 by George
Crum. Crum was a Native American/African American
chef at the Moon Lake Lodge resort in Saratoga
Springs, New York, USA. French fries were popular at
the restaurant and one day a diner complained that
the fries were too thick. Although Crum made a
thinner batch, the customer was still unsatisfied.
Crum finally made fries that were too thin to eat
with a fork, hoping to annoy the extremely fussy
customer. The customer, surprisingly enough, was
happy - and potato chips were invented!
POTD
• Reginald had 32 goodie bags at the party. Each
bag has 14 pieces of candy. How many pieces
of candy are there in all?
Homework
Review
Quadrilaterals
What are some things that you remember about
Quadrilaterals?
Rap Review Video 2
http://www.youtube.com/watch?v=gcQrmGmV1m0
Classifying Quadrilaterals Guided/Independent
Shape
Trapezoid with no
right angle
Trapezoid with one
right angle
Rhombus
Kite
Rectangle
Square
Parallelogram that
is not a rectangle or
rhombus
Parallelogram with
only right angle
Dart
Drawing
How many
pairs of
congruent
sides?
What types and how
many are there of
each angle are in the
shape?
Right ____
Acute____
Obtuse____
Right ____
Acute____
Obtuse____
Right ____
Acute____
Obtuse____
Right ____
Acute____
Obtuse____
Right ____
Acute____
Obtuse____
Right ____
Acute____
Obtuse____
Right ____
Acute____
Obtuse____
Right ____
Acute____
Obtuse____
Right ____
Acute____
Obtuse____
Attributes
Name of ALL POSSIBLE
Quadrilaterals AND
Illustrations
1)A quadrilateral that has 4 right angles.
2)A quadrilateral that has 2 pairs of congruent sides.
3)A quadrilateral that has exactly one set of parallel sides.
4)A triangle that has 3 angles that are the same measure and
3 sides that are the same length.
5)A triangle that has 2 sides that are the same length and 1
right angle.
6)A quadrilateral that has 4 congruent sides.
7)A quadrilateral that has exactly two right angles and
exactly one pair of parallel sides.
8)A quadrilateral that has 2 sets of parallel sides.
9)A quadrilateral that has 2 sets of parallel sides and no right
angles.
Math Club
Complete the Geometry Review Quiz
Show me what you know 
Wednesday, February 5, 2014
Lonnie G. Johnson (1949- ), was born in Mobile, Alabama.
He always loved creating and experimenting. At the age of
18, he built a remote-controlled robot, "Linex," and won a
national award for his invention. The robot was made from
junkyard scraps. He attended Tuskegee Institute, where he
earned a B.S. degree in Mechanical Engineering in 1972 and
a M.S. degree in Nuclear Engineering in 1974.
After college he joined the Air Force and later went to work
for NASA, where he earned many awards, including awardwinning work for the Galileo Jupiter probe and the Mars
Observer project. One of his great achievements was the
Johnson Tube. Of all his inventions, he is most noted for the
Super Soaker water toy.
In 1982, Lonnie did not mean to invent the powerful water
toy, but was tinkering around when a homemade nozzle at
his bathroom sink shot a spray of water, and viola! The
Super Soaker was born!
Homework
Review
POTD
• What is the value of 23 hundreds, 12 tens and
19 ones?
Symmetry
http://www.youtube.com/watch?v=6qNB2Lsg
C8Y
What is a line of symmetry?
• A line on which a figure can be folded so that
both sides match.
– Maryland Content Standard 2.E.2 – Identify and describe
symmetry in geometric figures or pictures. (Up to four
lines of symmetry)
To be a line of symmetry, the
shape must have two halves
that match exactly.
When you trace a heart onto a
piece of folded paper,
and then cut it out, the two half
hearts make a whole heart.
The two halves are symmetrical.
Which of these flags have a
line of symmetry?
United States of America
Maryland
Canada
England
What about these math symbols?
Do they have symmetry?
How
many
lines of
symmetry
these
Regular
polygons
have
the sametonumber
polygons
have?
of lines regular
of symmetry
as they
do sides
Do you
see a
pattern?
Symmetry/Guided
Symmetry/Independent
Math Club/ SF page 102
Thursday, February 6, 2014
Garrett Morgan
Born: 1877
Safety Hood, Traffic Light. Morgan's first wellknown invention was the safety hood, a
forerunner of the gas mask. When 32 workers
in Cleveland, Ohio, were trapped during a
tunnel collapse in 1916, Morgan and several
volunteers using the masks were able to reach
the trapped men and rescue several survivors.
In 1923, Morgan patented his best-known
invention, the three-way traffic signal, based
on signs that signaled stop and go. He sold his
patent rights to General Electric, which
developed an electrical version.
Died: 1963
POTD
• A local fast food restaurant sells 88 kids meals
a day. They also serve 126 combo meals and
67 desserts. How many kids meals they sell in
a 5-day period?
Homework Review
Symmetry Review
http://www.youtube.com/watch?v=mfBxNpfWAJA
Review Day
• Review Math Club Quiz
• Review Study Guide
Math Club/Math Superstar
http://it.pinellas.k12.fl.us/schools/curlew-es/studentconnect/mathsuperstars/files/90D843FEBFAC4A768B9AF796BD09F557.pdf
Friday, February 7, 2014
•
•
•
•
Hattie McDaniel June 10, 1895-October 26, 1952;
Wichita, Kansas
Did You Know?: Hattie McDaniel was the first black
performer to win an Academy Award, earning the best
supporting actress prize for her role as Mammy in the
epic Gone with the Wind (1939).
Did You Know?: All of Gone with the Wind's black
actors, including Hattie McDaniel, were barred from
attending the film's premiere in 1939.
Did You Know?: Hattie McDaniel was the first black
woman to sing on the radio in America.
POTD
• The bowling league expects to play in 3
tournaments this year. If there are 8 teams in
a league and each team has 23 players, how
many players will play in the tournaments?
Geometry Common Assessment
•
•
•
•
•
Lines
Angles
Triangles
Quadrilaterals
Symmetry
Math Club
• Review Operation Sort 5 (from the previous
week)