Here is the Review Geopardy Game for the Final!

 

https://bn1-broadcast.officeapps.live.com/m/Broadcast.aspx?Fi=9b82879bbcaf3eb1%5Fd3e06664%2Dedc0%2D4bdf%2D8370%2D3cceef2ed46d%2Epptx

Your Geometry Final is June 11, 12 or 13, 2014!

Hey, listen up Dragons.

You may use your created Geometry book, one sheet of double sided notes for the final, and know that these vocabulary words:

angle bisector        perpendicular bisector          median          altitude
inequality              ratio                                     proportion      similar
sine                        cosine                                 tangent            angle of depression/elevation
kite                        rectangle                             rhombus         square            trapezoid
area                        diagonal                              chord             inscribed angle
regular polygon      radius                                  diameter

Have the paper of notes prepared by Tuesday, so that you can test them out during the Jeopardy game. Have all of your chapter review sheets (5, 6, 7, 8, 9, 10) completed and turned in on the day of your final for extra credit towards your final.

Videos on Tangents and Secants

Here is a video applying tangent lines, triangles, and circles together.



Here is a video applying secant lines.

Chapter 9: Central Angles, Inscribed Angles and Intercepted Arcs

Here is a video about central angles and inscribed angles.



Here is a video on working out a problem concerning central angles, inscribed angles and intercepted arcs.



Here is a practice video and a self check quiz for you.



Study well! Be safe.

Review Video about Squares, Rhombi, Rectangels, and Kites!

Here is a video to refresh your memory about rhombus.



Here is a video to refresh your memory about squares and rectangles.



Here is a video to refresh your memory about kites.



Keep in mind if certain parts are equal, you can set them equal to each other.
Keep in mind that a kite is made of triangles whose angels add up to 180 degrees.

A Video to Review Trigonometric Equations

The bellwork question is ... how tall is Optimus Prime, if his 'line of sight' to Sam Witwicky is 96 feet, the angle of elevation from Sam is 50.8 degrees, after battling Sentinel and Megatron?

Chapter 6: Parallelograms

There are many quadrilaterals to talk about. Last week, we mentioned parallelograms, kites, and rhombi. Here is a video to watch.



After watching the video, for extra credit due on Monday (separate sheet of paper) answer the following questions:

1) What was one of the properties mentioned in the video but not in the class?
2) What is another word that stands for consecutive that we talked about in class, referring to property four in the video?

Question unrelated to the video: 3) What is the distance formula?

This week, we will talk about parallelograms and their properties more and rhombi.

More Videos for Chapter 8 review

Here is a video to see a person solve a trigonometric equation looking for a missing side measure.



Here is a video to see a person solve a trigonometric equation looking for a missing angle measure.

Spring Break, Enjoy! Class starts back on April 14th. The Big Push Is On!

Next week, we will be covering several topics: 1) special right triangles, 2) ratio trigonometry, and 3) angle of elevation and depression. If you can understand the first two concepts, the third concept is easy to do.

Here two videos about the two types of special right triangles:







For extra credit, rewatch the videos and answer the following questions and turn them in on a sheet of paper Monday!
1) From the first video, if x = 11, what is the value of the hypotenuse in a 45-90-45 triangle?
2) From the second video, if x = 1.5, what are the values of all three sides in a 30-60-90 triangle?
3) From the third video, if a = 21, b = 28, and c = 35 what are the trigonometric ratios from a non right angle?

A problem that will be on the test.

Please watch as many times as needed.

Here is a video to help you with proportional parts and similarity.

March Madness Is A Go!!

We are asking for your help to promote MARCH CARENESS. Please help us by posting the following information to your student blog.

March Careness  is here!! What is March Careness? March Careness is our chance to give back to our community and help those in need.

It starts Tues. Mar.25^th and ends Apr.3^rd. During March Careness you can donate any of the following for a chance to win up to $500 in gift cards with two grand prizes of a $25 Visa card.

Here’s how the donations work:

●       Cans = 1pt.

●       Dry Foods = 2pts

●       Toiletries = 3pts

For every point you score your name will be entered into a drawing to win. For every 7pts you score you will receive 1 hour of community service. For every 10 points scored receive 2 hours of community service.

Bring your donations to the Hot Spot or Dragon Cafe.

Help support our community with March Careness.

Last year we raised over 840 items. Our goal this year is 1,000 items. If we meet our goal we will celebrate with an assembly on April 3.

A Quick Review for the Ch 7 Quiz!

The quiz on Friday, March 21 will cover a few topics:
1) Can you say five true statements about a picture based on Chapter 7? (What corresponding parts are similar to what?)
2) Can you find the height of a tree based on several pieces of information? Can you write down the setup? Can you draw a picture? (If Arion is 3 feet tall with a 5ft shadow, and the tree has a 10 ft shadow...what is the setup and height of the tree?)
3) Can you find the value of a letter given two similar polygons?

Here is a video that I found that might help you with number 3:



Here is another one:



Good Luck on the quiz!

This crazy week in Geometry - Similar Polygons.

This week in Geometry we are learning about applications of proportions using triangles and polygons. Here is an easy video discussing what we learned so far this week, concerning the mirror activity from Monday.

)

In the video, the setup is little height over big height equaled to little shadow over big shadow.

In the video below, the teacher explains how to show that two polygons are similar. Here is another way, the corresponding parts are AE ~ QU and ED ~ UT. So when you divide AE by ED and divide QU by UT, you will get the same value. Check it out and see for yourself.

)

Dilations in Chapter 7!

While talking about ratios, proportions and scale factors. We need to talk about dilations.
Here is a video on dilations.



Having watched the video, there are ways to prove that two shapes are dilations of each other:

• corresponding sides have the same slope
• corresponding sides have a common scale factor
• corresponding sides have distances that are multiples of each other
• the objects of an area that is a multiple of the scalar factor squared

Concentrate on finding the slopes of lines. That's the easiest to figure out above all other tests.


Apply the bullet points from above to the video below. Only pay attention to 0 minutes to 7:20 minutes. The rest we didn't cover and will not cover in class. Prove that the triangles are dilations. I will count is as extra credit if you turn this in by Friday, March 7, 2014.

Important Bellwork!

This bellwork is going to keep coming up in the next few weeks.

If the Earth takes 365.25 days to revolve around the Sun and is 1 astronomic unit from the Sun, how many astronomic units is Mars if it takes 686.9 days to revolve around the Sun? 

 

How many astronomic units is Saturn, if it takes 10832 days to revolve around the Sun?

Chapter 7

Today we are starting Chapter 7 - Similar Triangles and More. Below is the jargon for the chapter.

   

Day Two of Review for Chapter 5

Today in class, we continued are discussion about Chapter 5. On the test there will be questions about perpendicular bisectors (circumcenter), angle bisectors (incenter), altitudes (orthocenter), medians, midsegments, triangle inequalities, and vocabulary.

For the past two days, we had to answer questions like: (copy and paste the link through Google to see)

https://mail.google.com/mail/?ui=2&ik=6159f3bbcb&view=att&th=1444bedeb78671b7&attid=0.1&disp=safe&realattid=24febd0ca97e9b2f_0.1&zw

https://mail.google.com/mail/?ui=2&ik=6159f3bbcb&view=att&th=1444bee1a6dfe7d4&attid=0.1&disp=safe&realattid=821b0dd06ad9afb6_0.1&zw

Let's Continue the Chapter 5 Review

Today, let us review perpendicular bisectors, altitudes, angle bisectors, and medians. For the test you should know how to draw and label each one them.




Here is a video on a perpendicular bisector.


Here is a video on a the median of a triangle.


Here is a video on the altitude of a triangle.


Here is a video on the angle bisector of a triangle.

Chapter 5 Mid Review

So last week, we had 9 jargon words to summarize Chapter 5. They are altitude, median, perpendicular, bisector, inequality, comparison,circumcenter, incenter, and orthocenter.  Below are pictures from class of the work we did in making our graphic organizers.

Last week, we also practice making the orthocenter - intersection of 3 altitudes, the circumcenter - intersection of 3 perpendicular bisectors, and the incenter - interesection of 3 angle bisectors on a website called Geogebra.

Go to www.geogebra.org, through Google Chrome to practice.

Mid Term Review

January  13 thru 17 is the BIG PUSH! We will be review chapters 1 thru 4:
Monday Ch 1, Tuesday Ch 2, Wednesday Ch 3, and Thursday and Friday Ch 4.
I will be posting review notes and sample problems for each chapter, on its particular day.
Study hard, the big push is on!

Today in Class ... Isosceles Triangle Review from Chapter 4

We wrapped up our understanding of SSS, SAS, ASA, and AAS. This is all apart of CPCTC - Corresponding Parts of Congruent Triangles are Congruent.

We also reviewed Isosceles Triangles. There are three important facts about Isosceles Triangles:
1) Two sides are always congruent, 2) Two base angles are always congruent, and 3) All of the angles inside of a triangle add up to 180 degrees. A pair or trio of students were assigned a story problem to work on.

Here are the problems. May you solve them?

https://docs.google.com/presentation/d/1izoM9AUHXofSXoJVBSW_SlMvn-_7UWMFCXPMWf-qIJA/export/pptx?id=1izoM9AUHXofSXoJVBSW_SlMvn-_7UWMFCXPMWf-qIJA&pageid=p

 

During class on Monday, we will video tape a student solving some of the problems for extra credit.