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Interactive Math Notebook pgs 37 87 Fall 2009 PreAP Geometry A 1 11/29/2009 36 1.2 1. Get a half piece of construction paper. 2. Make a hot dog fold, then a burrito fold. 3. Cut along the folds in the middle of the half of the paper. Point Line Plane Description Different ways to identify Examples Children of the Line Description Different ways to identify Examples Undefined Foldable

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Page 1: Children of the Line - Wikispacesmymathclass09.wikispaces.com/file/view/geometrya_notes_37.pdf · half of the paper.Children of the Line Foldable. ... Write the numbers 0 to 9 on

Interactive Math Notebook pgs 37 ­ 87

Fall 2009 Pre­AP Geometry A 1

11/29/2009

361.2

1. Get a half piece of construction paper.2. Make a hot dog fold, then a burrito fold.3. Cut along the folds in the middle of the half of the paper.

Point Line Plane

Description

Different ways  to identify

Examples

Children of the LineDescription

Different ways  to identify

Examples

Undefined Foldable

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Interactive Math Notebook pgs 37 ­ 87

Fall 2009 Pre­AP Geometry A 2

11/29/2009

37Goal: Identify Points, Lines & Planes

Question: If two points are collinear are they coplanar?

Question: If two points are coplanar are they collinear?

Building Blocks of Geometry

NTGpg 1

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Fall 2009 Pre­AP Geometry A 3

11/29/2009

38

Line Segment Ray

Children of the Line

1. Get a half piece of construction paper.2. Make a hot dog fold about 2/3 of the way.3. Cut along the fold in the middle of the shorter half of the paper.

Children of the Line Foldable

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Interactive Math Notebook pgs 37 ­ 87

Fall 2009 Pre­AP Geometry A 4

11/29/2009

39Goal: Segments, Rays & Distance

NTGpg 3

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Fall 2009 Pre­AP Geometry A 5

11/29/2009

40 Do Now:  (You don't need to write down the instructions.)Step 1: Draw a number line: Using your ruler create a number line from ­8 to 8, coordinates should be 1cm apart. Label coordinate ­3 with F and coordinate 5 with G.

Step 2: Fold the number line: Fold the number line so that F lies on top of G. Unfold the paper and label the coordinate where the fold intersects the number line H.  Record the coordinates in the table. F          G        H

Step 3: Choose Your Own Coordinates:Each member of the group should choose two coordinates of their number line.  Label the coordinates F and G. Repeat Steps 1 & 2. Record each person's coordinates in the table.

page 10 in Notetaking Guide

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Fall 2009 Pre­AP Geometry A 6

11/29/2009

41Goal: Find lengths of segments 

A

B

(    ,   )

(    ,   )

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Fall 2009 Pre­AP Geometry A 7

11/29/2009

42 Do Now: KWL is on your desks 

pg 13 Notetaking Guide

Angles and Different types of Angles

0 1 2 3 4 5 6 7 8 9   

Do Now:Write the numbers 0 to 9 on pg 42. Count the number of angles in each number.  

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Fall 2009 Pre­AP Geometry A 8

11/29/2009

43Goal: To name, classify & measure angles

A

B

C

HW: pg 29 Textbook #1­42 (Every Other Odd) CW Alternate: pg 29 Textbook #1­42 (Every Other Even) 

NTGpg 13

NTGpg 12

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Fall 2009 Pre­AP Geometry A 9

11/29/2009

44Foldable: Angle pairs

Complementary Angles

Supplementary Angles

Vertical Angles

LinearPair

sum90o

sum180o

adjacent supplementary angles

two angles whose sides are opposite rays

Do Now:

Angle Measurements in Shapes

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Fall 2009 Pre­AP Geometry A 10

11/29/2009

45Goal: Special angle relationships & polygons

NTGpg 16

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Fall 2009 Pre­AP Geometry A 11

11/29/2009

46

3 sides 4 sides 5 sides 6 sides 7 sides 8 sides 9 sides

Sum of the Angle Measurements

1. Write your name on the green paper with shapes on it. 2. How many sides does each shape have? 3. Measure each angle.4. Sum the angle measurements of each shape.5. Write your answer on the board in the appropriate place.

Foldable

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Fall 2009 Pre­AP Geometry A 12

11/29/2009

47NTGpg 21

Goal: Learn basic polygon terms

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Fall 2009 Pre­AP Geometry A 13

11/29/2009

48 Do Now: 

DO NOW on pg 48

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Fall 2009 Pre­AP Geometry A 14

11/29/2009

49Goal:

PAGE 31‐32 NTG

NTGpg 50

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Fall 2009 Pre­AP Geometry A 15

11/29/2009

50 Do Now:

1. 

2. Write the converse of #1. 

3. Write the inverse of #1. 

4. Write the  contrapositive of #1.

Conditional Statements

Converse

Inverse

Contrapositive

Write a conditional if­then statementIf I go swimming, then I can't go to the park.

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Fall 2009 Pre­AP Geometry A 16

11/29/2009

51

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Fall 2009 Pre­AP Geometry A 17

11/29/2009

52

Triangle DGT is isosceles with TD = DG.  If the perimeter of Triangle DGT is 756 cm and GT = 240 cm, then DG = ? 

Do Now: 

If an obtuse angle is bisected, then the two newly formed angles are ___________ and __________.Draw a picture to support your answer.

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Fall 2009 Pre­AP Geometry A 18

11/29/2009

53Goal:

NTGpg 39­40

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Fall 2009 Pre­AP Geometry A 19

11/29/2009

54

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Fall 2009 Pre­AP Geometry A 20

11/29/2009

55Goal: Review of Algebraic Properties

NTGpg 51

NTGpg 46

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Fall 2009 Pre­AP Geometry A 21

11/29/2009

56 Do Now:

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Fall 2009 Pre­AP Geometry A 22

11/29/2009

57Goal: Perimeter and Area 

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Fall 2009 Pre­AP Geometry A 23

11/29/2009

58 Do Now:

1.) Draw two intersecting non­perpendicular lines on the top half of your paper.2.) Use a marker to draw a non­perpendicular line that intersects both lines from step 1 at a different intersecting point.  The marker line is called the transversal. 3.) Starting from the top right angle of the transversal (marker line) label the angles a, b, c, d, e, f, g and h in a clockwise manner.3.)Measure each angle and fill in the chart.

m<A  m<B   m<C m<D  m<E  m<F  m<G   m<H 

1.) Draw two slanted parallel lines on the bottom half of your paper.2.) Use a marker to draw a non­perpendicular line that intersects both lines from step 1 at a different intersecting point.  The marker line is called the transversal. 3.) Starting from the top right angle of the transversal (marker line) label the angles a, b, c, d, e, f, g and h in a clockwise manner.3.)Measure each angle and fill in the chart.

part Apart B

part B

part A

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Fall 2009 Pre­AP Geometry A 24

11/29/2009

59Goal:NTGpg 60

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Fall 2009 Pre­AP Geometry A 25

11/29/2009

60 Do Now:

AB

CF

GH

DE

Transversal Foldable: Intersecting Lines

CorrespondingAngles

Consecutive Interior Angles

Alternate Interior Angles

Alternate Exterior Angles

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Fall 2009 Pre­AP Geometry A 26

11/29/2009

61Goal:

NTG pg 63

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Fall 2009 Pre­AP Geometry A 27

11/29/2009

62

ABCF

GH

DE

CorrespondingAngles

Consecutive Interior Angles

Alternate Interior Angles

Alternate Exterior Angles

Transversal Foldable: Parallel Lines

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Fall 2009 Pre­AP Geometry A 28

11/29/2009

63Goal:

NTGpg 64

NTGpg 65

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Fall 2009 Pre­AP Geometry A 29

11/29/2009

64 Do Now:

NTGpg 67

NTGpg 68

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Fall 2009 Pre­AP Geometry A 30

11/29/2009

65Goal:

NTGpg 67

NTGpg 68

NTGpg 70

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Fall 2009 Pre­AP Geometry A 31

11/29/2009

Do Now:

Copy from NTGpg 71

Copy from NTGpg 73

66

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Fall 2009 Pre­AP Geometry A 32

11/29/2009

67Goal:

NTGpg 71

NTGpg 72

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Fall 2009 Pre­AP Geometry A 33

11/29/2009

68 Do Now:

List 5 (x,y) pairs of numbers whose sum is 3.(Example (­1, 4)). Then plot your points on graph paper.

List 5 (x,y) pairs of numbers where the difference of twice the first number and the second number is 7.(Example (2, 3))

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Fall 2009 Pre­AP Geometry A 34

11/29/2009

69Goal:

Point Slope Form:   Given the slope (m) of a line and a point on the line (x1, y1).y ­ y1 = m ( x ­ x1)

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Fall 2009 Pre­AP Geometry A 35

11/29/2009

70 Do Now: What is the distance from the point to the line?

NTGpg 79

NTGpg 82

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Fall 2009 Pre­AP Geometry A 36

11/29/2009

71Goal:

Write

NTG pg 79

NTGpg 80

NTG pg 81

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Fall 2009 Pre­AP Geometry A 37

11/29/2009

72Do Now:1.  Draw a scalene and a equilateral triangle on the folder.  

2. Measure the length of each side of the triangles and mark the midpoint of each side.

3.  Cut out both triangles.

4. Pick a side of one of the traingles and draw a perpendicular bisector. Do it for each side in each triangle. 

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Fall 2009 Pre­AP Geometry A 38

11/29/2009

73

NTGpg 122

Goal:Use perpendicular bisectors to solve triangle problems

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Fall 2009 Pre­AP Geometry A 39

11/29/2009

74DO NOW: 

1.) Take a piece of paper off of the overhead. 2.) Create and cut a triangle from the paper. 3.) Color each vertex of the triangle with a marker.4.) Tear the corners about 1­2 inches from 

 the vertex.

5.) Arrange each piece with the vertices together and the sides adjacent to form a straight line.

Compare your results with others in your group. State a conjecture of your results.

Copy the following table:

Trial    m<A    m<D   m<DCB

12345678

Interior Angle   Interior Angle   Exterior Angle

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Fall 2009 Pre­AP Geometry A 40

11/29/2009

75Goal:NTGpg 85

NTGpg 85

NTGpg 87

NTGpg 95

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Fall 2009 Pre­AP Geometry A 41

11/29/2009

76 Do Now: Trace Triangle XYZ on tracing paper. Identify which angles in Triangle MLN correspond to the angles in XYZ.

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Fall 2009 Pre­AP Geometry A 42

11/29/2009

77Goal:

NTGpg 89

Write

NTGpg 92

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Fall 2009 Pre­AP Geometry A 43

11/29/2009

78 Do Now: Cut out each shape from the green paper.

Draw two triangles that have the angle measurements of 60, 80, and 40.

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Fall 2009 Pre­AP Geometry A 44

11/29/2009

79Goal:

NTGpg 93

NTGpg 96

NTGpg 100

Use theorems and postulates to prove triangle congruence.

NTGpg 98

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Fall 2009 Pre­AP Geometry A 45

11/29/2009

80

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Fall 2009 Pre­AP Geometry A 46

11/29/2009

81

NTGpg 119

Use midsegments solve triangle problemsGoal:

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Fall 2009 Pre­AP Geometry A 47

11/29/2009

82 Do Now:

Can you make a triangle out of the side lengths?  Use the toothpicks to support your answer.

NTG pg 132

Copy the chart below:

Side A       Side B      Side C    Triangle3                     5               63                     6               95                     6               93                     5               96                     9              1512                  17             25

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Fall 2009 Pre­AP Geometry A 48

11/29/2009

83Goal:

NTGpg 132

NTGpg 133

NTGpg 134

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Fall 2009 Pre­AP Geometry A 49

11/29/2009

Page 50: Children of the Line - Wikispacesmymathclass09.wikispaces.com/file/view/geometrya_notes_37.pdf · half of the paper.Children of the Line Foldable. ... Write the numbers 0 to 9 on

Interactive Math Notebook pgs 37 ­ 87

Fall 2009 Pre­AP Geometry A 50

11/29/2009