Friday, January 24, 2014

Dilation and Similarity

The activities today are independent. If you have questions, raise your hand.
1. Turn in homework to the front desk
2. Time to put your headphones on and watch this video and take notes on dilations
3. Read through the activity - Dilation and Similarity in Sketchpad - and complete it. Any answers that need to be written down should be done on looseleaf with the proper PSM heading (5 points) and turned in at the end of class.
4. Once you have finished the activity, use any extra time to use the links on the blog to study for Monday's test on 6.1-6.3. (Some of the links that are provided have a different Chapter 6 then our book. Be sure to study the topics listed below.)
Ratios and conversions – know customary conversions à oz, qt, gal, cup
Determine polygon scale factor and write similarity statements
Geometric mean of two numbers
Find the perimeter of a rectangle given the length to width ratios and perimeter
Extended ratios and triangles
Solve proportions (using cross products properties)
Use properties of proportions

Sunday, January 19, 2014

Extra Credit Opportunity

Complete the activity posted here 6.5 Investigating Geometry Activity: Discovering Triangle Similarity Shortcuts due Wednesday.
Bring to class the paper with the straws taped on and answer the drawing conclusions questions 1-7.
There is a possibility to earn up to 5 points towards your homework grade.
For those students interested in completing the activity, you may see me to borrow a protractor and straws.

Thursday, January 16, 2014

Monday, January 13, 2014

Computer Lab Activity

Log on to the Math League Contest. Be sure to read all directions on how to enter your answers correctly. If you forgot your password or log in, raise your hand and wait for Mrs. Smith to give it to. You will need an activation code in order to take the test. This will be posted on the wall once everyone is in the lab and logged in. Once you begin the test, you will have 30 minutes to complete it. You may use scratch paper and a calculator. When the test results are in, students who receive credit for correct answers will receive extra credit points toward their homework grade.

When you finish, you will complete the Sketchpad activities here; they are also in your book 5.4 and 5.5.

Rubric for computer lab...Quiz grade!
5
Student worked quietly and independently. Student completed Math League Contest and worked independently on Geometer's Sketchpad activities with little assistance from others/teacher. Excellent use of time-management and problem-solving skills.
4
Student was communicating with others at times. Student completed Math League Contest and worked independently on Geometer's Sketchpad activities with assistance from others/teacher. Good use of time-management and problem-solving skills.
3
Student was communicating with others many times. Student completed Math League Contest and worked on Geometer's Sketchpad activities with assistance from others/teacher. Could show better use of time-management and problem-solving skills.
2
Student was communicating with others throughout the lab visit. Student completed Math League Contest and worked on Geometer's Sketchpad activities with a lot of assistance from others/teacher.  Lack of time-management and problem-solving skills.
1
Student was off task and received multiple reminders about appropriate behavior. Did not use time wisely to complete the assignments.

Geometric Mean