Pre-Calc 11

A little rough and unfinished, but here are the slides from today.

Today in Pre-Calc 20

The Cosine Ratio

We reviewed our previous work with trigonometry so far this morning, and then took a look at our third and final ratio-the Cosine.

Pictured below are some notes courtesy of H-Thanks. If you have any questions be sure to comment. On Monday we will take up your assignment (pg 244 #1-34) and we'll mark the trig review. Maybe a quiz on Tuesday...



Have a great weekend.

Rational Inequalities

Today we reviewed how to solve Quadratic Inequalities and worked on some examples of Rational Inequalities. I also introduced the Absolute Value Inequalities. The note at the bottom of page 79 is helpful, but if you get lost with these just remember to 'split the inequality' and check the 'regions of the x-axis' as you have with quadratics and rationals.

On Monday I will be quizzing homework on Linear, Quadratic, and Rational Inequalities. We will skip lesson 10 and test the rest on Wednesday, June the 4th. Have a great weekend.

A heavy quiz day...non-linear systems

We started today by marking yesterday's quiz on three variable systems. I explained how important it was to explain your steps, and many of you scored well due to doing just that. It was nice to see. We then wrote a quiz on non-linear systems and spent much of the class going over that. I can't emphasize enough the need to start these questions off with a sketch of the system so that you know how many solutions you're looking for. If you explain your steps along the way you get to demonstrate that you understand the process of solving these sometimes complicated systems even though you may have made a simple error (like dropping a negative). With the time we had left I demonstrated how to graph linear inequalities. Please make sure to finish that up for tomorrow.

Permutations again!?!

Today we discussed more in depth the probabilities associated with counting problems. That means that we look at a counting problem, then consider a probability sort of question. It's important to remember here the definition of probability and use it for part marks.

Specifically you want to make sure you calculate the total number of possible outcomes (which will be the easier of the counting problems) for part marks. Be sure to take a look at the examples and give the assignment a try. We'll discuss any problems you have tomorrow.

History today....

Today we marked some old worksheets to review events just prior and just after confederation. We reviewed the notes we took last Thursday and reflected on some of the world events during the early 1930's. Tomorrow we'll likely discuss and establish the criteria for your next project.