Tuesday, May 27, 2014

May 28: Orthographic and Isometric Drawing

May 28, 2014
Orthographic Drawing

1.  "Ortho" in Greek means...straight, upright, perpendicular.

An orthographic drawing is a series of 2-D drawings that represent a 3-D shape. The series of drawings show different faces of the solid as a separate drawing.



2.   When you arrange the front, top, side drawings on a paper on a paper so that the lengths, widths, and heights all line up, this is called an orthographic projection.

In orthographic projections, the same scale is used for all three views and they are aligned horizontally and vertically.

 "Hidden" edges are often shown with dotted lines. (see examples at the bottom of the page).

Orthographic drawings/projections are usually made on perpendicular graph paper.  Like this



3. Iso in Greek means...same, similar, equal, alike. 
(Think isosceles.)

An isometric drawing is made from the perspective of the corner edge of the shape.  It's made this way so that the angles are the same.

4.  Here's an example of an isometric drawing.


5. Isometric drawings/projections are often made on isometric graph paper. Like this:
 or 



6. Often in engineering, a solid is represented with BOTH orthographic and isometric projections on one piece of paper. 
 The dimensions in this kind of drawing are labeled! 
(see examples below).



7.  YOUR ASSIGNMENT:
A.  Create a drawing/projection that contains a front, top, and side orthographic projection and an isometric drawing.  
Please include dimensions.  You will be given a shape to draw.
Due at the end of class on Friday, May 30.  Worth 20 points.

B.  On your own, review Chapters 4-6. Quiz on Monday, June 2.


Thursday, May 22, 2014

May 23-27 Additional Trigonometric Ratios


May 23-27, 2014

SocCahToa  (soak-ah-toe-ah)

Information: What does it stand for? http://www.mathwords.com/s/sohcahtoa.htm

Silly ways to remember it:



ASSIGNMENT:  
1. Study the trigonometric ratios of cotangent, secant, and cosecant on pages A3 and A4 in your textbook.

2. Complete the 7 practice problems in the book on page A4. (Check to see that you got the right answers when you are done.) Worth 5 points.

3. Working by yourself or with a partner/group, create a memorable song, rap, poster, skit, play, presentation, etc. that would help other students remember the fundamentals of cotangent, secant, and cosecant.

4. Presentation is due by the end of class on May 27th.  Worth 20 points.  

WEDNESDAY, MAY 28 
YOU WILL HAVE A QUIZ ON CHAPT 1-3.  The class is only 30 minutes long, so please arrive on time to class. :-)

Thursday, December 5, 2013

Thursday, Dec 5

First -  Take the quiz.

I.  Watch this video: 
http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6562/6562.xml
 In your notebook, answer these questions









II.  Watch this video:
http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6621/6621.xml
In your notebook, answer these questions













III.  Watch these two videos:
http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6622/6622.xml

http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6623/6623.xml

IV.  In your notebook, answer these questions:
A.  What does the triangle proportionality theorem state? (If...,then...)
B. What does the converse of the triangle proportionality theorem state? (If...,then...)
C. What does the two transversal proportionality theorem state? (If...,then...)
D. What does the triangle angle bisector theorem state? (If...,then...)

V.  Do IXL P.4 and P.5

Tuesday, October 29, 2013

Tuesday, October 29

1.  Watch this video:
http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6519/6519.xml


2. Do IXL, Geometry, L.9

Come to class ready to discuss the following vocabulary:
transformation
image
pre-image
reflection
rotation
translation

Wednesday, October 23, 2013

Monday, October 14, 2013

Lesson 4.1 - Preview

1.  Triangles can be classified by their angles.  View this video:
http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6534/6534.xml

2.  Triangles can be classified by their sides.  View this video:
http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6699/6699.xml

3. Watch these 2 videos:
http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6700/6700.xml
and
http://my.hrw.com/math06_07/nsmedia/lesson_videos/geo/player.html?contentSrc=6701/6701.xml


************

  • In the comments below, tell me the four different ways triangles can be classified by their angles and the three different ways triangles can be classified by their sides.
  • Then do IXL  Geometry F.1


Wednesday, September 25, 2013

Lesson 3.4 (day 2)


1. QUIZ


2. In Drive:  Complete Geogebra construction that proves these two theorems/postulates.  Save to your drive and share it with me.












In Safari or Firefox (Chrome doesn't work)
3.  Complete lesson 3.4, check answers, and print to .pdf.  Email (or show) to me.
http://www.classzone.com/cz/books/geometry_2011_na/resources/htmls/ml_hsm_geom_eWorkbook/index.html

4.  Roller coaster animation

5.  Practice quiz (Email, or show results to me).

Friday, September 6, 2013

Sept 6th Lesson 2.3 Work and Homework

Hello!

Lesson 2.3 - Class work and Homework:
1. go to
 http://my.hrw.com/math06_07/nsmedia/homework_help/geo/geo_ch02_03_homeworkhelp.html

Watch the 4 videos and complete problems 2-19.  Write the answers in your notebook

2.  Complete these two review quizzes and send me the screen shot of your responses:

http://my.hrw.com/math06_07/nsmedia/practice_quizzes/geo/geo_pq_ger_01.html


http://my.hrw.com/math06_07/nsmedia/practice_quizzes/geo/geo_pq_ger_02.html

3. Complete the logic puzzle


Wednesday, August 28, 2013

Wed., Aug. 28th Online Quiz and Question

Today's blog has two parts:

Part 1 is an online quiz - send me/show me your results
http://my.hrw.com/math06_07/nsmedia/practice_quizzes/geo/geo_pq_ffg_05.html

Part 2:  What steps would you follow to complete this problem?
Find the area of the composite figure below formed by 2 identical three-quarter circles, 2 isosceles right triangles and a square.

Friday, August 23, 2013

Friday, August 23

Please watch these two movies 



over the weekend and come to class on Monday prepared to answer questions on how to describe and draw:


  • adjacent angles
  • non-adjacent angles
  • angles that make a linear pair
  • vertical angles
  • complementary angles
  • supplementary angles
PS - you do NOT have to describe and draw these for homework!  Just be ready to do it in class on Monday.

Thursday, August 22, 2013

Thurs, Aug 22 - Another Compare and Contrast

Today's assignment has 2 parts:

1.   In paragraph form*, please compare and contrast the Segment Addition Postulate and the Angle Addition Postulate.

(Please give at least three similarities and three differences.)

*Paragraph form means you begin with a topic sentence, mention supporting details, and end with a conclusion.

2.  Then take the brief quiz at http://my.hrw.com/math06_07/nsmedia/practice_quizzes/geo/geo_pq_ffg_03.html
and email me a screen shot of your results.  It is OK with me if you take the quiz as many times as you need to in order to get 100%.



Monday, August 19, 2013

2 Online quizzes

Dear Geometry students,

Please take these two online quizzes.

Six questions over lesson 1:
http://my.hrw.com/math06_07/nsmedia/practice_quizzes/geo/geo_pq_ffg_01.html

Four questions over lesson 2:
http://my.hrw.com/math06_07/nsmedia/practice_quizzes/geo/geo_pq_ffg_02.html


Take a screen shot of your score page for the quizzes and email me the shot.
You can take the quiz as many times as you need to in order to get 100%.  Send me your best score.

Many thanks,
Ms K

Wednesday, August 14, 2013

Goals for Geometry

What do you hope to learn by studying Geometry?  What are three goals that you have for yourself in regards to this class?