Wednesday, December 12, 2012

Pythagorean Theory

Finding the sides of a Right Triangle.


Pythagorean theorem lets you find the third side of a right triangle if
you already know the two sides.
(side 1) x (side 1) + (side 2) x (side 2) = (longest side) x (longest side)

We call the longest side the Hypotenuse. It is the side that is directly
across from the 90 degree (right angle).
You will sometimes see this written as:

a2 + b2 = c2

[Image:121212_32851_2.png]
So if we know the length of two of the sides, we can figure out the length
of the third side.
e.g. Using the triangle below we will find the length of the unknown side.
[Image:121212_33200_3.png]
The side opposite the right angle is 25, so we will write the equation as
a a2 + b2 = c2 . 7 squared + x squared = 25 squared
49 + x 2 = 625
x 2 = 625-49
x 2 = 576
x = 24 (square root of 576 )

Use this method to solve the questions on the sheet attached.

Pythagorean theory

Finding the length of the Sides of a Right Angle Triangle using Pythagorean Theory.


Monday, October 15, 2012

Percent quiz

Percent quiz on Tuesday Oct. 16th. Be sure to remember to change word
problems into a math equation.
"is" =, "of" x, and "what ?" P (unknown)

Tuesday, October 2, 2012

BEDNAS Final Quiz

Please see the attached file and complete as your final BEDNAS Quiz. If
you do this electronically, you can email it to tlopez@rrvsd.ca


Friday, September 28, 2012

Quiz

Be prepared to write your final BEDNAS quiz on Tuesday.

Thursday, September 27, 2012

Homework

Complete page 31, using BEDMAS rules with formulas.

Thursday, September 20, 2012

Order of Operations Quiz 2

Complete and check questions on page 18, 19 and 20 of your Order of
Operations booklet.

Prepare for a quiz on Order of Operations which includes Brackets,
Exponents and a dividing line.

Your Quiz will be held on Friday Sept. 21st

Tuesday, September 18, 2012

BEDMAS Game

Visit the following site to play a game of BEDMAS against a friend.

http://www.shodor.org/interactivate/activities/OrderOfOperationsFou/

Monday, September 17, 2012

Sept. 17th Homework

Complete the Self Quiz on page 13 of your BEDMAS Workbook.

Remember that you have to use bedmas rules for both parts of an equation that has a top and bottom section. Do them as two separate equations, then solve by dividing the top answer by the bottom one.

Thursday, September 13, 2012

Thursday Sept 13

Complete Order of Operations questions on Pages 7-8 of booklet and check and correct questions using  the answer key at the back.

Also check and correct questions you completed on pages 5 and 6.

Be prepared for a quiz on this tomorrow.

Visit www.khanacademy.org and create an account using your google, gmail, hotmail or yahoo account (choose the Google option on the left to do this)

After logging into Khan Academy:
Click on your ID at the top and then choose Coach on the bottom left.

Type tonylopezfamily@gmail.com in the box.

After completing all this visit: www.math-play.com and play the "who wants to be a millionaire"
Pyramid game for Order of Operations.
Review for tomorrows Quiz

Tuesday, September 11, 2012

Basic Math

So far in the last week we have worked on reviewing our basic math skills. We have practiced adding, subtracting, multiplying and dividing. Your homework at the end of this section was to complete the Math Maze. For further practice on Basic Math Skills, visit the following website and try some of the math games.

Order of Operations: BEDMAS

The order that you do a math equation will effect the answer. Unlike English that reads from left to right, the language of Math has rules to tell you what to do first. It is important to follow these rules or your answer will be incorrect.

For example: 2 x 4 - 6(3-1) = ?     If you complete it from left to right it would be
                         8 - 6(3-1)= ?
                             2(3-1)= ?
                                6-1= ?
                                  5

While the real answer should be -4

The proper way to read the equation is by following the acronym BEDMAS, which stands for

1. B - Brackets    Do everything in curved then square brackets first.

2. E - Exponents    Next convert all your exponents to expanded form. ex. 3 squared is 9.

3. D - Divide   Complete all the division you find and convert fractions as they are a form of division.

4. M - Multiply   Complete all forms of multiplication. example 2(3-4) is a form of multiplication.

5. A and S - Add and Subtract as they appear from left to right.

Using this technique the above example would be as follows:

                 2 x 4 - 6(3-1) = ?
Brackets   2x4 - 6(2)=?
Multiply   8 - 12=?
Subtract   -4


Thursday, August 30, 2012

Check out the Grade 9 Math (Transitional) Course Outline below:

Grade 9 Math 10T (Transitional)


Grade 9 Transitional Mathematics is a program designed to provide transitional support for students who may have struggled to learn mathematics in middle years. The course is designed for delivery prior to Grade 9 Mathematics 10F to reinforce skills required to develop further understanding in mathematics. The guiding principles of the course include the language, skill, process, and concept development necessary for the transition into Grade 9 Mathematics 10F and beyond.


Topics of Study: 


Module 1: Games and Numbers
Module 2: Basic Math Skills
Module 3: Percents
Module 4: Fractions
Module 5: Integers
Module 6: Algebra and Simplifying Expressions
Module 7: Trigonometry


Evaluation:

Entrance Quizzes 10%
Class work (includes projects) and Homework 30%
Unit Tests 30%
Final Exam 30%

Expectations:

Students are expected to be on time and prepared to work. If late, a student will have to wait till after the Entrance Quiz is complete before entering. Missed Entrance Quizzes must be completed at the following Lunch Hour. If you have been absent, you are expected to check the class Blog to see what you missed. Students, who have missed, will write their Entrance Quiz at the 1st Lunch Hour back at school. Students should check the class website for homework information and links to useful Math Sites.

Students are expected to take notes and ask for clarification during class. Entrance Quizzes will be based on previously covered material and previous nights homework. Extra help is available at lunch. If you are stuck or need to communicate with me, my email is tlopez@rrvsd.ca . This is also a good place for your parents to contact me.

School rules and class rules are as follows:

No hats in the classroom. Leave them in your locker or bag.
No cellphones or ipods. (Keep them out of sight, as I will confiscate them if I see them.
No food or drink - other than water (without my approval)

Students should bring the following to class with them:

A notebook or Binder
Graph Paper
A Geometry Set (Ruler, Protractor, Compass) when needed
Materials for writing (Pen, Pencil and eraser)
Calculators: Students are required to have a Scientific Calculator