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Found 12 results

  1. Hi, could anyone help me understand the difference between algebra 2 + trig, precalc, and college algebra? I've seen people say that algebra 2 + trig and percalc are essentially the same thing, but I know that most highschoolers take both with a2+t one year and precalc the next. Then there is the fact that CLEP offers separate exams for College Algebra, and Precalculous, which further confuses me. If college algebra is not precalc, is it algebra 2, or something entirely different? The names may vary by region, we live in New York State if that helps.
  2. Once in a year I got math anxiety :) This year I'm worried about 'finishing in time'. So I wondered how long it takes to cover AoPS Intro to Algebra and / or LoF Trigonometry. In your answer I want to know, how much time you devoted to math per week, what was included ( using other material outside the book) what was skipped (challenge problems, chapters). And how many months you needed. Is LoF Trig a whole year or a semester book? (Or even less?) As dd is in the language track, she will have 3-4 hours math per week during grade 11/12. We won't have time for 6+ hours math per week. Thanks for answering! ETA: tags
  3. My son can't figure out how/why a step in the problem at the bottom of page 111 in Life of Fred trigonometry was arrived at. I'm no help, either. Can anyone help? To show that 1 + cot2 x = csc2 x Changing to sines and cosines (ok here) 1 + cos2x/sin2x = 1/sin2x Adding the fractions (this is what he doesn't get) (sin2x + cos2x)/sin2x Since sin2x + cos2x = 1 (ok here too) 1/sin2x He doesn't understand how the term in the second step is derived. Anyone? Thanks! Amy
  4. If you are insomniac like me and like trigonometry the PDF for the 1999 edition is here. I probably had the first edition, did trigo in 9th grade. ETA: Other oldies Schaum's Theory and Problems of Physical Science 1974 page Schaum's Theory and Problems of Electric Circuits 1965 page Schaum's Theory & Problems of Advanced Calculus 1963 page Schaum's Theory and Problems of Set Theory 1964 page Schaum's Theory & Problems of Probability 1968 page
  5. Hi~ I'm needing recommendations for a trigonometry text to go along w/ my son's foray into trigonometry via Khan Academy. Any suggestions? Also, we are needing a condensed American History study for his last year. Sonlight is too expensive (even used) right now, though we both love it. He has done a couple of Notgrass curriculums, but would like to steer clear of them for this history course, if at all possible. Any words of wisdom from those who have been there and done that? Thank you, Desiree
  6. I have never studied trigonometry. I would like to understand trigonometry well enough to help my daughters with their ACT prep. Can you recommend a crash course? I'd like a text I can hold in my hand, not a youtube video. Also, I need something that takes it step by step--the ACT prep books don't cut it for me. Thanks! Tamarind
  7. I was just wondering as curriculum is already decided... When I was in high school, my junior year I took a class called Trig/EA. Now it was also the year I moved. My previous school was a wonderful class of students who all helped each other. I didn't know anyone who drank. I made really good grades, but didn't have any idea about class rank. So we move the summer between junior and senior year.. No one helps anyone because you might jeopordize your class rank. People are separated by hundredths of a point. This school is better in some ways because this is where I took Latin. She was AWESOME. We had a giant club and she taught 5 full classes every year, all the national merit semifinalists came from her classes ( normally had 8 to 10 a year. I only got commended. I was one of the stupid ones...) . ( Once again, I knew nothing at all about this test until I moved. I did no prep as I didn't know I was taking it or what it was for.) Keg parties were rampant...But I digress.. My son is doing Precalculus with Chalkdust. Is that the same as trig?? I decided not to take Calculus my senior year because I knew I didn't need it as a music major and needed room for choir, show choir, and drama. So was is the difference between all of those maths?? Not that I will probably understand the explanation... Sigh.. I loved math until we moved. I just felt so isolated and alone that year that math fell by the wayside.... Christine
  8. We are currently using Larson/Hostetler's Intermediate Algebra 4th ed. along with the Dana Mosely DVDs and both are working great. I'm trying to look ahead for the next course and am not sure what the sequence is meant to be. Does the Larson/Hostetler pre-calculus follow the intermediate algebra course? Does it include a good bit of trigonometry as well as a good intro of calculus? I would be most grateful for some feedback and/or assistance. Also, if anyone knows of the corresponding Mosely DVDs, I would appreciate the ISBNs for them. Thank you!
  9. Now that ds is in his second ch of the trig section (in the Alg II/Trig Dolciani '65 book), we've hit a major slowdown.... It can take an hour to do 2 problems...Ds says they just take him a long time... Here I was thinking he would be finished with the book by the middle of April. Any insights? Thanks! Joan
  10. I'm looking at Alg 2 for my son. He is currently doing TT and we both don't care for it. We think he will want to do something in the computer science field so I need it to be meaty. Can someone tell me any information about this program. Did you like it? If so why. Did you dislike it? If so why. What are it's pro's and con's? Thanks
  11. Silly me. I thought that the trig portion of the Dolciani Algebra II/Trig text that my son is currently using would be the same as the Dolciani Modern Trigonometry text that I picked up at a library book sale last spring. (My new hobby is collecting old Dolciani texts on the cheap.) Imagine when I pulled the latter off the shelf and saw the name Bechenbach on the cover. Understand that the Dolciani/Bechenbach collaboration on Modern Introductory Analysis created a stellar high school math text that I used in the mid '70's. So my curiosity was piqued. This 1966 text begins where every old Dolciani text does: with sets and axioms. The trig begins in Chapter 2. I have taught trig from what seems to be a countless number of precalc texts. The subject usually begins with a discussion of radians, then defines the trig functions essentially as relationships of sides of the triangle in the four quadrants of the plane. Not this book. Chapter 2, entitled Circular Functions, begins with periodic functions. In the A portion of the first problem set students graph and determine the periodicity of things like f(x) = 2(x - [x]), where the bracket denotes the greatest integer function. The B sections contains proofs on periodic functions. And so it goes. There is no special chapter on proving trig identities. The proofs are throughout the book. Applications on things like uniform circular motion and simple harmonic motion are not lacking. But it gets even better. Chapter 6 is on vectors. Within the first section the idea of a commutative group is introduced, as well as a vector space. The engineering mathematics of vector applications to forces is all there but to arrive at it one must first work through theoretical material on inner products. Of course, finding this old text may be a challenge but there are copies floating around the Internet. This is obviously not going to be everyone's idea of a great trig text. But it looks like a wonderful book for someone who wants to treat trig as something other than a bunch of algorithms that you memorize, regurgitate and promptly forget after the test (which I am afraid is how many trig books treat the subject!) My son will start using this book next week, once he wraps up his logarithm material in Dolciani's Algebra II/Trig. Note: odd answers are in the back, but not any graphs. A solutions manual may be impossible to find! If anyone is interested in how it goes, I'll be happy to keep you posted either on this board or via a private message. Jane
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