Monday Nov 28 - Homework for Tuesday.

Homework - Do the problem below on a sheet of paper to hand in.  
Be sure to follow the GESNERGuide steps (1. WRITE date an your name, 2. READ Problem Carefully, 3. RECORD All Information, 4. Write the FORMULA(s), 5. FILL in the NUMBERS, 6. SOLVE Step-by-step, 7. Draw a BOX around your final answer, 8. WRITE a Sentence if it was a word problem)
 Overdue Homework:  On the Area of a Circle Sheet do #17, 18, 20, 21, 25, 26.  

Problem:  Mr. Wanie's bike tire has a radius of 42cm.  
a) What is the circumference of his bike tire?
b) If he lives 6.5 km from school, how many times does his wheel turn on his ride to school.

Fri Nov 25 - Weekend Homework

Weekend Homework: On the Area of a Circle Sheet do #17, 18, 20, 21, 25, 26.  You can do others as bonus.
Overdue:  Do blue GESNERGuide and do the following questions about Ms. Gesner's bike.


Problem:  Ms. Gesner's bike tire has a radius of 35cm.  
a) What is the circumference of her bike tire?
b) If she lives 1.2 kilometers from the school, how many times does her wheel turn on her way to school?
c) Mr. Wanie has a fancy cycling computer that allows you to make adjustments to the radius of your tire.  What factors might influence the exact radius of the outside of a bicycle tire? 


Basic Rules for Gesner-ify your Math solutions are:
1. READ the problem carefully (out loud if possible)


2. RECORD all information you might need (and the date and page number!!)
     ex: C = 2.3 m     1000 m = 1km


3.  DRAW a diagram if appropriate


4. WRITE OUT FORMULA(E) 
     ex: C = Π · d


5.  FILL IN information in the formula.  Include all units.


6.  USE TRIANGULAR FORM to show all steps
      ex: C = Π · d
               = 3.14 · 2.3m
               = 7.222m


7.   Write a SENTENCE about your answer if it was a word problem.  Draw a BOX around all other answers.

Thurs Nov 24, 2011 Calculating the Area of a Circle

Today we went to the computer lab to research ways to find the area of a circle.
http://www.education2000.com/demo/demo/botchtml/areacirc.htm
http://www.youtube.com/watch?NR=1&v=YokKp3pwVFc

The Egyptian Method:  Draw a large square around the circle.  The length of one side is equal to the diameter.  Divide the large square into 9 small squares.  The circle covers approximatly 7/9 (seven ninths) of the circle.  So A= 7/9 * d

HW - Draw a diagram for #4 and #5 on "How can we calculate the area of a circle?"


Do Ms. Gesner's Bike HW problem from yesterday if you didn't already do it.

Nov 23rd - GESNERGuide to Solving Problems Elegantly

Weekend Homework
On the Area of a Circle Sheet do: #17, 18, 20, 21, 25, 26 (and other questions too if you want).

Overdue: GESNERGuide blue sheet and Bike Problem below.


Basic Rules for Gesner-ify your Math solutions are:
1.  READ the problem carefully (out loud if possible)
2. RECORD all information you might need
     ex: C = 2.3 m     1000 m = 1km
3.  DRAW a diagram if appropriate
4. WRITE OUT FORMULA(E) 
     ex: C = Π · d
5.  FILL IN information in the formula.  Include all units.
6.  USE TRIANGULAR FORM to show all steps
      ex: C = Π · d
               = 3.14 · 2.3m
               = 7.222m
7.   Write a SENTENCE about your answer if it was a word problem.  Draw a BOX around all other answers.


Problem:  Ms. Gesner's bike tire has a radius of 35cm.  
a) What is the circumference of her bike tire?
b) If she lives 1.2 kilometers from the school, how many times does her wheel turn on her way to school?
c) Mr. Wanie has a fancy cycling computer that allows you to make adjustments to the radius of your tire.  What factors might influence the exact radius of the outside of a bicycle tire? 

Tues Nov 22nd

Today we talked about how to use formulas.
HW - Mathpower 8 Textbook, p143, #1-17 (you have already done some of the questions).

Bonus - What is the formula for calculating shoe size if the measurements are in INCHES?

Monday Nov 21 - in advance

Mathpower 8  Complete p143, #1 to 5 and #10 to 13 and #15 & 16 BONUS/Challenge p168 Activity 1 and 2

Thurs Nov 17, 2011 - PA DAY tomorrow!

Today we compared the Nov 2010 Circumference data to our data.  Although their data is closer to Pi... some students last year fudged their data - so in the end Nov 2011 comes out ahead.

HW - Finish all incomplete work (Corrections to the quiz, get quiz signed, Lazy Flowers fraction reduction, Circle drawings, 5.1 and 5.5)

If you're up to date - ENJOY A LONG WEEKEND WITHOUT HOMEWORK!

Wed Nov 16, 2011

Today we looked at our Circumference Data and made corrections.

We learned that
Circumference = Pi times Diameter
C = 3.14 x D

C = pi x 2 x radius 

HW - #7-16 on Circumference Sheet

Mon Nov 14, 2011

Today we discussed the circumference/diameter data we collected.


HW For Wednesday, on looseleaf paper answer:
1) What changes would you make to our class' data before recalculating the average of C/D?
2) Finish 5.1 Circles sheet.


Overdue homework
Make all corrections to Integer Test, get signed by a parent.
Do "Lazy Flowers" fraction reduction

Integer Retest Rewrite is either THURSDAY at LUNCH or AFTERSCHOOL

Fri Nov 11, 2011

For homework, see below.

Thurs Nov 10 - Microsoft Excel

Today we learned how to use formulas and the Sum button in Excel.

All formulas begin with an equals sign.  Edit - Fill down can be used to copy formulas.

Homework = Get test corrected and signed, Lazy flowers

Wed Nov 9, 2011- Measuring Circumference using yarn

Today we drew circles and measured their circumference using yarn. Tomorrow we will analyze this data using an Excel spreadsheet.

HW - Get Integers test signed and do "Lazy Flowers - Reducing Fractions" sheet.  Both due Friday.

Tues Nov 8, 2011 - Geometer's Sketchpad

Today we went to the lab and did an activity using circles on Geometer's Sketchpad.

HW - Do both 5 Minute Frenzy tables.  Make sure you have yesterday's homework ready to hand in.

Monday Nov 7, 2011

HW - #1) a) Draw a circle with Diameter = 10cm
                 b) Draw a circle with Radius = 8 cm

#2 Draw a circle and label the radius, diameter, a chord and an arc.


BONUS - #1) Draw a circle.
#2) Draw a chord.  Find the midpoint of the chord.  Draw a perpendicular line through the midpoint.
#3) Draw a second chord.  Find the midpoint of the chord.  Draw a perpendicular line through the midpoint.
#4) The two perpendiculars should meet at the centre of the circle.  Do they??

Fri Nov 4, 2011 Computer Lab

Today we went to the computer lab.  Ms. Gesner showed you:
www.wordreference.com (excellent online dictionary)
www.leconjugueur.com (online Bescherelle)
www.arcademicskillbuilders.com

and we began working with Geometers' Sketchpad.


Homework: "Make it Pretty" and "Cyclops" geometry sheet.  All questions, both sides.