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College Algebra 1) Use a loose leaf binder. NO SPIRAL TYPES! 2) Have plenty of notebook paper and pencil. 3) Put your syllabus in the back. 4) All returned and graded papers go behind the syllabus. 5) Bring your notebook every day. 3-ring binder 6) Keep all papers in order. 7) Keep textbook, or papers from other classes, OUT! All problems on all tests, quizzes, and homework should be written legibly, in order and numbered. All that you might be tempted to call “scratch work” is important in this class. It shows you are working the problems yourself. Duh…may I scratch my head? Section 1.1 notes Jan. 15 A natural number is like a counting number. 1,2,3… All naturals and 0 are the whole numbers. Integers are whole humbers and their opposites. Rationals can be written as ratios of two integers. Irrationals can never be written as repeating or terminating decimals. Real numbers can be placed on the number line. . On the left put “Section # Notes” On right put date (0ptional) Do all work orderly. Keeping good notes may help your quiz grades because sometimes I allow you to use your notes on a quiz, but if you don’t take notes, you won’t have that advantage. Taking notes from online videos is optional, but they do help on your notebook grade. Be sure to label “Section # video notes.” Date is optional. You may also take notes from online powerpoints or examples. (Optional.) You may also take notes from your textbook. (Optional). Section 1.1 video notes Jan.16 Write using set notation N = { 1, 2, 3, …} W = { 0, 1, 2, 3, …} J = { …-3,-2,-1, 0, 1,2,3…} Q = { p/q| p and q are integers} Section 1.1 notes from text. The opposite of a number is like 4 and -4. zero is its own opposite. A number and its reciprocal will multiply together to get 1. Section 4.1 OLHW 1) 2x – 3y = 6 x= 2y Feb. 25 2(2y) – 3y = 6 4y – 3y = 6 y=6 x = 2(6) = 12 (12, 6) 2) 3) 6x – 3y = 0 3) 2x + 3y = 8 8x =8 x=1 4) 6(1) – 3y = 0 -3y = -6 y=2 (1,2) On left, write section # OLHW Show all work, number your problems and be orderly. You may just put a check mark by problems you could answer without work, such as a multiple choice or short answer. Work that must be done to determine a graph should be shown on your notebook paper. (see next slide) Heading on each page Number your problems Section 1.4 OLHW 5.) Graph 2x + 3y = 12 If x = 0 then 3y = 12 so y = 4 (0, 4) is on the graph. If y = 0 then 2x = 12 so x =6 (6,0) is on the graph Use graph paper if doing classwork, extra credit, or quiz, but you may freehand sketches that you transfer to online homework. Show your work on how you determined points on the graph. Transfer graph to online if needed. Classwork, extra credit, or group work must be appropriately labeled on the top left side of every paper. You must write the section number and number all problems. You may also do odd problems and check them from the book for practice before turning in evens for extra credit. This will help your notebook grade. Section 5.2 classwork 1. (-2)2 = -4 March 14 2. (-8)/(-2) = 4 Section 5.2 textbook odds 1. (-3)(-4) = 12 3. (-3) + 1 = -2 5. 24 – (-2) = 26 7. -3 – (-5) = 2 9. 54 -68 = 14 11. 6 + (-2) = 4 Check your work Go on and fill up each page with your math work. Never use math websites on the internet to do your math problems for you. Phones or ipads may never be used for calculating in this class. If you bring some calculator to class other than the TI-83 or TI-84 you may have trouble using it for the purposes we have in this class. Also, I may not be able to help you figure out how your calculator works. Developing an orderly notebook and keeping accurate records of your work is an important life skill, but it also gives credence to your efforts in this class. Ten percent of your grade is the notebook. Much educational research lately has confirmed the value of keeping a good notebook. Student success in this course will depend on learning how to keep a notebook and using it. MAY YOU HAVE GREAT SUCCESS IN THIS CLASS.