Testing LaTeX

\[\sum_{i=1}^nx_i\]

I have moved!

Well as you may have guessed by the link above, I have moved my blogging endeavours. Although I'm sure the good people at Blogger won't take it personally, I'd like to reassure them that they shouldn't.

As I've explained to a few others in person, the format at Edublogs is a little less intimidating for new users and to promote the use of blogs in the classroom I feel that using the more easily accessible format is important for now. As students and other teachers become more comfortable with publishing to the web in the "blog" format they will certainly find their way to Blogger. Essentially Edublogs provides a little more in what I call "mouse wiggles" usability; which is less intimidating in comparison to copying and pasting code for the newly initiated.

To the good folks working at Blogger however, I'd like to say not to change too much. The control one has over their blog by having some access to the html code which creates it is an important feature and one I will miss (and will be suggesting to the people of Edublogs).

Again, thank you to the Blogger staff, and to those of you who helped me to build this blog. Visit me at the new blog by following the link above.

C'ya there!

The Lost Lab

Hope everyone is able to get out and enjoy some of the nice weather which has been forcasted for the weekend. For those who are using every last minute to perfect their labs which are due Monday I appriciate your effort.

For those of you who may have lost your stuff...follow the link.

Enjoy the weekend!

Pre-Calc 20

Today we contiued work on our study guides. Unfortunately the study guide is too large to post, so you'll have to come to class to get it. Be sure to go over your old tests in the meantime.

Good luck studying.

Math 9: Study Guide for Midterm Exam

If you follow the link you will find a study guide in Word format as well as Open Office. Both should download fine. Make sure you have completed your homework sheets that have been assigned after our last test as they will be on the exam as well.

Your exam will consist of solving equations, some word problems, and some exponents.

Study hard.

Physics 11 Study Guide for the Midterm Exam

We have completed a number of topics so far. They include:

• 1.5: Analysis of Straight-line D vs. T Graphs.


• 2.1: Analysis of Velocity-Time Graphs


• 2.2: Moving from Velocity-Time to Distance-Time


• 2.4: Using Equations to Solve Problems


• Conceptual Questions (pg68):#1, #3, #4 (hint: Acceleration occurs when there is a net force)


• 4.2: Newton's Second Law


• 4.3: Free Body Diagrams


• 4.4: FBD's in Two Dimensions #44 only


• Conceptual Questions (pg149): #1, #2, #8


• 5.3: Calculations Involving the Force of Gravity


• 5.4: The Normal Force


• 5.5: Friction (This is my favorite topic so far...be prepared!)


• 5.6: Springs (Surprisingly few questions from you here...hummm...did anyone do the homework?)


• Conceptual Questions (pg186): #3, #6, #19 (look this one up), and any others that may have appeared in our work.


• 10.1: Introduction to Waves


• 10.2: The Wave Equation

You will be given a formula sheet with constants and prefixes. Be sure to bring a CALCULATOR and a RULER. I will not be able to provide you with these once you're at the exam. Study well. When we return to school I will give you time to study and work on your labs (Due November 20).

Pre-Calc 40 Study Guide

This link will take you to a website for Pre-Calculus 40. Your midterm exam will be based on the first four practice exams given to you on the site (Trig 1 & 2, Transformations, and Logarithms).

Each of these represents the four modules we have covered so far. Each of the modules will be weighted equally.

When you're preparing for your exam remember that even if you can't solve a particular problem, there will be a possibility of part marks, so show your work for the portion you know and move on.

Lab #3 Data

Data in excel format for your spreadsheet adventures.

The Logarithmic Function

Previously we were graphing exponential equations in all bases (including base e), and in our assignment we graphed the reflections of these functions in the line y=x (the inverse functions...right?)

Those inverse functions you graphed are called Logarithms. Logarithms are exponents and will be manipulated with the same rules as any other exponents (to be discussed later). Lets take a look at how a logarithmic function is written.

An exponential function can be written as:



So exchanging the x and y coordinates produces yesterday's inverses, which can be written like:



Or in logarithmic form the above looks like:



For this lesson we will concern ourselves with developing skill in sketching these functions. Look for similarities and differences between these and their exponential cousins (inverses). Tomorrow we will do some converting between the exponential and logarithmic forms of these functions.

A "Special" Exponential Function

This link (purplemath comes through yet again) describes what the "base e" is without going into too much mathematical "hocus pocus". Understanding this will help later on when you're answering questions and wondering what "continuous" meant in a mathematical sense.

(I'll wait here while you read the linked site)


So hopefully you're ready to graph some equations using the base e now...take a look at example 1 in your module and give it a try.

When you get to your assignment (specifically question #2) try to remember that to sketch an inverse of a function (not the reciprocal) you reflect the function in the line y=x. When the assignment moves on to talking about geometric series I suggest you read question 5 first.