Getting close! 1st and 2nd block continued on with our study of dilation and similarity (not on final). All others started final review.
For the review classes: We re-worked problems from the Transformation Unit Test from blank tests in class. All classwork for final review blocks should be written on a piece of paper that can be turned in with review assignments. 
We went over the first review assignment and the warm-up. The new assignment was handed out; we then used class time to work on the "Build Your Own Notes" page for points of concurrency (did cheer in class). The Triangle Test was returned and we re-worked problems 10-21 to make sure we understood our mistakes. All tests were collected; none will leave the classroom. The 2nd review is attached, with the textbook part of the review written on the notes pages for constructions.
Answers to review will not be published immediately.
In 1st and 2nd - we did investigation 2 on p 375 - making a strong connection between dilation and the definition of similarity. We wrote up the definition of similar polygons from the bottom of p 374 with sketches about CORN~PEAS from p 377. We wrote up C-57 from p 375 based on investigation: If one polygon is a dilation of another polygon, then the polygons are similar. There was a sketch on the board to copy (get from friend). We then wrote up a second definition for similar figures based on C-57: similar geometric figures are figures for which a sequence of rigid transformations and/or dilations can map one exactly onto the other. (no sketch needed). No need to write up C-58 from p 376 as we wrote it in a previous conjecture: all circles are dilations of each other and similar to each other.
We looked at some dilation questions from the PARCC test and a demonstration of dilation without a grid on Geogebra, and then we completed a Performance Task that required full understanding of dilation without the coordinate grid. (Attached) I then passed out the Final Review study guide and the first assignment. (This is attached two blocks prior.)
​

Today's block was different in different classes depending on how close to the final we are. In 1st and 2nd, we have one more class day before we start reviewing for the final, so the pace is a bit easier. In 4th, 0B, and 6th, we only have two more blocks before final exam.
Every student should have received the study guide attached below. If you are in 0B and did not get it, you may come by or print this one off. Also the review assignment attached below is due for the next block only if you are in 0B, 6th, or 4th.
Today we went over the 3 graphs from pp 371-3 and glued them into appropriate places in our notebooks. Make sure you have written up the definition of "dilation" from the bottom of p 371 into GT, gluing in Example B to go with it. Write up the Conjecture (un-numbered) on p 372: all circles are dilations of each other. Sketch concentric circles with an arrow from the inner to outer circle to show this to be true.
We discussed and practiced with technology and graph paper: dilating a point, dilating a segment where the center is not collinear (so parallel), dilating a segment where the center of dilation IS collinear which yields collinear segments.
We did the investigation on p 376 and added F"O"U"R" with a scale factor of 0.5.
4th, 0B, and 6th were asked to write up the definition of "Similar polygons" from the bottom of p 374, using sketches of CORN ~ PEAS with all of the info between the figures (from p 377). Also write up C-57 from p 375: If one geometric figure is a dilation of another, then the figures are similar. 
You do not need a separate sketch for this. Make a note: see definition of dilation above.
Final Review first part is due (worksheet attached) for the next block.
​

Today in class our focus was dilation as a non-rigid transformation that maintains shape (corresponding angles are congruent), but not size (reduced or enlarged).
We did some activities with the coordinate plane grid and algebraic rules.
The major part of our time was devoted to learning to use Geogebra software on Chromebooks. In some classes, we constructed triangles, segments, and points of concurrency as a review and the learn what the software can do and how to experiment with it.
In all classes, we constructed a triangle, a center of dilation point, and used a scale factor of 2 to dilate the triangle. We learned some properties of dilation using tools in the software to make observations about the dilated figures. We also constructed two different sized circles and demonstrated that a translation and a dilation will map one on top of the other. 
The idea of dilation defining similarity in geometric figures was shared.
On graph paper, we did EX B on p 371 and used this to glue into Geometric Truth as the example for the definition of dilation (copy from the bottom of p 371 into GT). Feel free to mark it with our observations like parallel sides, equal angles, etc. We also wrote up the conjecture on p 372 with a sketch like what we did on the computer: All circles are dilations of each other (are similar).
Finish for HW #13 if you have not already: pp 372-3: 1,3.
Students saw test scores also!
Below is a link to print a pdf of graph paper if you need it.
Final review information will go out starting in 4th period tomorrow, and will be attached on the next post.

​

Today was Unit Test day! 68 points. If you missed class, you need to come during your next advisory to take the test.
We went over the review, asked questions and did a short warm-up, attached below with answers.
The test was the last hour of class. No homework tonight!

My answer page for p 240:1-9

First off: mistake on last post concerning 0B final. It is NOT early. It's on Monday, December 17.
Second: we have a test next block! Study for it! Your study guide is attached below if you lost it. Conjectures through 27 are attached on the previous post. No need to write up C-20,28, or 29. The review assignment HW #12 is p 224:20, pp 256-7: 9-11, 13-21, 27-29, 31-32.  31 and 32 are mini-proofs. From 9-21, there are 4 Cannot Be Determined responses.
There is not much in the review about the first part of the unit. Study your returned quiz and the worksheet we did in class today on triangle inequalities.
Attached below are the two practice worksheets that we did in class today, along with the answers. Also attached is the proof of the Perpendicular Bisector Theorem (FITB) with answers on second page.
I am also attaching the answers to most of the review assignment.
Make sure you know the parts of the isosceles triangle, as well as all the named parts on C-23 - An exterior angle of a triangle is equal to the sum of its two remote interior angles.
Conjectures 17-19, 21-27 are attached on various posts below.
I will have an early study session on Friday (8:10 am) and am available during A&E today (Nov 29). Come if you want help with your proofs on the review.
​

Welcome back! Hope your Thanksgiving break was good and good for you!
And now we are on the home stretch for this semester... 6 more blocks of class before finals start.
First things first: you have a unit test on Friday or Monday, Nov 30, Dec 3, about 70 points. Wed-Thurs block is a review day to review the unit and work on "mini-proofs".
0B final is on Friday, Dec 14. Other finals are the following Mon-Wed. Review lists and assignments will go out next week, probably on Tues-Wed, Dec 4-5. No exemptions from the final; the final is 20% of the semester grade.
HW #11, due Wed-Thurs, is p 240:1-9. For each problem: copy and label sketch, copy given, write "show" from the question, and then do a 5-6 step mini-proof. Pay attention to the hints where lines need to be added to the sketch. Three of the questions can be answered "cannot be determined". At whatever point you realize that, you can quit working on that problem and just write "CBD".
I am attaching copies of everything we did in class related to triangle congruence and proofs based on corresponding parts of congruent triangles. The only proof not contained here is the proof that I wrote on the white board for you to do that was not a fill-in-the-blank. (There is a question just like it on the unit review.)
​

It's late on Friday and Ms. Bogart is headed home. Quizzes are posted. I just wanted to make sure that I had attachments here for absentees.
There is no homework. But if you were not here, we did p 236:4-17 in class. Might want to get together with a friend.
We also did the attached worksheet (with answers).
And I am offering another couple of practice worksheets if you need them.
Happy Thanksgiving! Ms. Bogart
​

It's getting closer to the end of the semester!
We had a quiz in class today worth 22 pts. Come during advisory as soon as possible to make up.
The unit test over Triangles, Congruence, and Deductive Reasoning is Nov 30 - Dec 3 (Fri, Mon after break).
Aspire interim is December 5.
Finals begin Dec 14. Our final is comprehensive for the entire semester. Topic lists/study guides and assignments will be passed out on December 7th and 10th.
Today in class we practiced applying skills from C-17-23. You need to get all of these written up in your Geometric Truth. They are attached to previous posts if you scroll down.
We checked HW #9 and the warm-up.
And then we worked on investigating, questioning, discussing, sketching Triangle Congruence Shortcuts SSS, SAS, ASA, and SAA.
We learned that SSA and AAA combinations do not work.
Shortcuts are guarantees that all corresponding sides and angles will be congruent (all 6 parts of a triangle) if only three parts are congruent. We examined all possibilities and determined that these 4 work.
HW #10 - pp 230-231: 1-2, 4-10, 12-20. Four of these can be answered as "cannot be determined". On 18-20, you may use rigid transformations to say why the figures are congruent.
Write out congruence statements for most problems (state which triangles are congruent and why).
Write up C-24-25 from pp 228-9, using sketches from p 227. The fill in the blank should be obvious.
The online textbook can be very helpful in this chapter.
flourishkm.com
Username: first.last
password: 5 digit lunch code (yours)
pin #: 72703A
​Attached: worksheet and answers from class.

Quiz next block over 4.1-3 (HW #7-9). This is not a difficult quiz. There will be a review worksheet for warm-up next time. There are no complicated "find the angle" problems on the quiz. There are no proofs or actual vocabulary. We will work more on the Triangle Inequalities before the quiz. There is a find-the-angles sketch on the quiz where isosceles is important. The quiz is 22 pts.
In class today we did a fill-in-the-blank proof of C-23: An exterior angle of a triangle has a measure that is the sum of its remote interior angles (pp 222-3).
We also figured out the triangle inequality rules: The sum of the side lengths of the two shorter sides of a triangle must be greater than the length of the longest side.
The largest angle in a triangle is opposite the longest side; the smallest angle is opposite the shortest side.
We did p 175:1-2 (constructions) to discover the Triangle Congruence Shortcuts SSS and SAS (not on the homework or the quiz next time.)
HW #9 - pp 223-4: 1-9, 12, 16-19 and p 208:10-11.
​Hint on p 208: 10 - You do not need to construct a triangle with these angles. You can add them on a ray; the leftover angle on the line will be the correct measure.