Monday, October 29, 2007

8.4: Conserving Momentum in Two Dimensions

Today we looked at how similar our work with velocity is to our work with momentum now. Vector problems are usually broken down into using the law of cosines to find magnitude, and the law of sines to find direction. You'll need a good diagram of course. I've included an example for you in the link.

Tuesday, October 16, 2007

Solving for mass...

Here's the rearranged formula...


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Sunday, October 14, 2007

Mass, Inertia, and Gravity-Heavy Topics

For tomorrow we'll be looking at how gravity interacts with the mass of an object, and inertia.

Starting on page 158, we'll read and make notes to page 162, where we'll look at some examples of Newton's Universal Law of Gravity. Early last week I introduced the topic briefly but now is the time to look at it in more depth.

I may get some time later today or tomorrow to post a video with some notes and/or an example or two. A short historical account of these 'heavy' ideas and their astronomical applications take a look at this.

'See' you Monday.


Saturday, October 13, 2007

Perpendicular Lines & Slope

I tried something different with the sound...hopefully this is working better. Remember to get started on the review exercises whenever you are waiting for help. Have a great weekend.

Thursday, October 11, 2007

Review day 2

I'm guessing that the review is going ok, and I thought that another day would be in order. On Monday we'll look at section 5.3. I'd like you to read that section and make some notes. I'll be giving an example or two on Monday and we'll be looking at a quiz or a test soon after I get back.

Horizontal & Vertical Lines (lesson 6)

Was not recorded in a tunnel...

6.2: String & Pulley Problems

Sound production credited to: Tunnel Productions.

Lesson 5: #3

No...I was not in a tunnel when I recorded this...apparently I still have a few bugs to work out of the sound portion of the production. Hope it helps anyway.

A time for review...

I considered getting a new lesson together for today, but when I remembered that we spent our last class discussing 'how' for chapter 4 I thought today might be better spent doing some review.

Mrs. Lepp has some review sheets for you. Some of the questions might be a bit challenging, but read it though and work together and I'm sure you'll answer quite a few. For those of you who had difficulty with chapter 4, you're welcome to work on that instead. Please make sure you help each other study today.

Tuesday, October 9, 2007

Friday, October 5, 2007

Thursday, October 4, 2007

Some Equations for practice...

We did a few equations for practice yesterday in class. If you wanted another look at how they go here they are.

Wednesday, October 3, 2007

Module 3 Introduction

We looked today at straight lines, and relationships that are like a straight line (known as linear relationships). You may find that some graph paper will be helpful for this module.

The link above might be a bit advanced for reading today, but as the module moves forward I'm sure we'll refer back to it again.



I have grown a little concerned about the amount of homework not being attempted and we discussed ways that you might be motivated to do more. We didn't seem to arrive at anything more constructive than 'candy for questions'. We all agreed that plan was not likely in our best interests. For the short term I'll be checking a little more frequently I think.

Tuesday, October 2, 2007

Equations With Brackets and Fractions...

Here are some notes on the new assignment. Drop by for some extra help if you need it.

Header Graphic: http://ann-s-thesia.com

Thanks.