Scribe Post for March 23, 2009

Yesterday in class, we started off with "Number of the Day". The number of the day was 8756.934. Then we took some notes on perpendicular bisector and angle bisector.

Here are the notes:

Bisect: -Bi means "two"

-sect means "cut"

-so bisect means to cut in two

Perpendicular Bisector

A line that divides a line segment in half and is at right angles to it

eg.

How can you create or draw a perpendicular bisector?

1. Free hand, o.k. but not perfect

2. Protractor gets us 9o degree angle

-Ruler cuts line in half

eg.

3. Use a compass and create arcs
eg.

a) Open compass to greater than half the distance of line

b) Place compass on point A, draw an arc

c) Place compass on point B, draw an arc

d) Use a ruler to connect the intersections of the arcs that line is a perpendicular bisector

Angles

Angle: the figure formed by two lines with a common endpoint called a vertex

eg.

Acute angle: less than 90 degrees

eg.

Obtuse angle: more than 90 degrees

- less than 180 degrees

eg.

Angle bisector: the line that divides an angle into two equal parts

eg.

How do we make an angle bisector?

1. Free hand not perfect not accurate enough

2. Protractor

eg.

3. Compass

eg.

a) Arc from vertex

b) Arc from point S (intersection of line and arc)

c) Arc from point T (intersection of line and arc)

d) Line from arc intersections to vertex that is your angle bisector

After taking down all the notes, we worked on page 116-121 (Math Links)

I pick Telissa to do the next scribepost

Scribe Post for February 10, 2009

We started off our class by doing Number of the Day. The number of the day was 7214.586. After that, we handed in our number of the day booklets for a check. We also got a chance to catch up on our provincial folder worksheets.

Some examples of the worksheets we had to finish are:


-Find as many ways as you can to represent 3/4, 1.25, etc.


-Match the correct fraction to the correct picture


-Order the fractions from least to greatest or greatest to least





Today's homework is to write an algebraic equation and solve it, for the following statement:


Daylon talked for 45 minutes in today's class. How many minutes did he work?





Make sure you study for the term test tomorrow. The test is going to be on everything we have learned since the beginning of the year, from rounding numbers to solving algebraic equations.





I choose Althea to do the next scribepost.