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Percentages, compound interest, depreciation and logarithms.
A thorough explanation of Compound interest. Two practical cases: 1. Interest: Marisa invests $300 at a bank that offers 5% compounded annually. a.) What is the growth factor for the investment? b.)...
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Logarithms
Hi You have a lot to do today: 1. Go to Mathisfun to learn a bit about logarithms. Write the definition and solve the questions at the end in your notebook. 2. Finish the powerpoint about sets of...
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Polynomials
Starting with polynomials. Another take on the theory. 3 Given the polynomials: P(x) = 4x2 − 1 Q(x) = x3 − 3x2 + 6x − 2 R(x) = 6x2 + x + 1 S(x) = 1/2x2 + 4 T(x) = 3/2x2 + 5 U(x) = x2 + 2 Calculate:...
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Ruffini rules!
Hi! We are going to practice a little bit about division of polynomials, including Ruffini’s rule. 1. The teacher is going to show you some tools to correct these type of exercises. Pay attention. 2....
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Ruffini doesn’t rule all
Hi Today we are going to use the quadratic formula to factor second degree polynomials. Sometimes, when you are using ruffini, you factor until you get a second degree polynomial. If this polynomial...
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Algebraic fractions
Hi 1. First of all, we are going to meet a new tool to correct all this amazing stuff I’ve thrown you. It’s called Symbolab. Pay attention. 2. Now it’s time for more practice. Solve these in your...
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Exam review
Hi Some materials to help you: Algebraic fractions worksheet with solutions (at the end). Factoring polynomials. Bye
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Solving equations with ruffini’s rule
1. First of all we are going to learn use geogebra to solve all types of equations graphically. Pay attention. 2. Here you have some exercises. Solve them in your notebook using ruffini’s rule and...
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Inequalities
Hi We are going to start solving inequalities (inecuaciones) First of all, some basic instructions from Mathisfun: Solving Inequalities Sometimes we need to solve Inequalities like these: Symbol Words...
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Similarity, angles, Homertry
Hi, let’s use Homer to start the geometry part. Open it, play with it and send me the answer to the questions in it to my mail. Tasks for today: 1. Pay attention and recreate the Geogebra construction...
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Trigonometry I
Hi We are starting with the awesome world of trigonometry. 1. Project: clinometer The picture above shows you the materials you’ll need to create a very simple clinometer (that is, a device to measure...
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Trigonometry 2
Hi We have some things to do: 1. Solve these problems in your notebook while I try to correct your clinometers. Make drawings, of course. 2. I’m gonna show you how to create an applet like this: Pay...
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3-gonometry
Hi 1. Find out what is a radian and its equivalence in degrees. Find also which of these units is older. Send me your findings, along with these simple exercises solved: Express the following angles...
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Angles with the same trigonometric ratios
Hi Just a couple of geogebra constructions to help you:
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Vectors
Hi Starting with vectors: 0. First of all, we are going to create something similar with geogebra. Follow my instructions and send me the file. 1. Pay attention to this video, and take notes. 2. We are...
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Pixar
Hi This video talks about some applications of vectors: And this geogebra applet demonstrates what the video says:
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Vectors and homer
Hi We are going to use vectors to create animations, similar to this applet: Pay attention and send me the files, as usual. The images you need are in this folder: Images
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Midpoints, lines etc.
Hi Time to work with Geogebra. Pay attention and send me the files, as usual. 1. The first one is about midpoints. 2. The second about symmetric points. 3. The third one about lines. 4. Now go to this...
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Flatland
Hi It’s time to discover this classic: Book (pdf format) Another version. And the movie: You can get it as a free ebook.
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