MATH DEPARTMENT CALCULATOR SKILLS (and how to get them!!) Getting started videos http://www.youtube.com/watch?v=26mDU7WyGdk&feature=related The difference between the minus and negative buttons/symbols,Working with the hotkey menu system, Error:Syntax, The default overwrite feature, Using the ENTRY and ANS features, Using INS feature to insert, Using the Clear Button http://www.youtube.com/watch?v=j842EIAMXyU&feature=relmfu Using the Math, Fraction feature, Finding square roots, Squaring numbers, Raising to other powers, Finding the 3rd root, Finding the nth root http://www.youtube.com/watch?v=ZAuNjd71VvA&feature=relmfu Factoring using TI http://www.youtube.com/watch?NR=1&v=bRax59zzXoQ&feature=endscreen MAT 102 o o Set and adjust the window to view a complete graph (demonstrated at about minute 3:00 of http://www.youtube.com/watch?v=qQLr35fOaKI&feature=related ) Enter linear, quadratic, absolute value, and radical functions into calculator Entering equations in Y= Pressing GRAPH Using TRACE Using Arrow Keys left and right in TRACE Using Arrow Keys up and down to jump between functions in TRACE Clearing equations in Y= Turning off equations in Y= Making some equations graph with thicker lines Making the calculator shade above a line o o o o o o MAT 110 http://www.youtube.com/watch?v=3ELOrnSWiJw&feature=relmfu “Read” the domain and range of the function from the graph Find the vertex of a quadratic function Find the x-intercepts and y-intercept of a function Find x-intercepts using quadratic formula and discriminant found at http://www.youtube.com/watch?v=qQLr35fOaKI&feature=related Set and access the table function Enter and shade inequalities and systems of inequalities MAT 111 MAT 120 o Enter data into calculator in lists http://www.midlandstech.edu/beatyk/Movies/To%20enter%20data%20into%20TI83.html o Find one- and two-variable summary statistics including mean, median, standard deviation, variance, and 5-number summary 1. mean, median, max, min, Q1, Q3, and both standard deviations (and how to tell the difference between them) http://www.youtube.com/watch?v=Lu09pTqgiqg 2. Find variance, range, good tricks to go back to previous screens, IQR http://www.youtube.com/watch?v=RMk_kJFmlPw&feature=relmfu 3. Find weighted mean, GPA, scores with frequencies, etc. http://www.youtube.com/watch?v=naOgHR7A4T0&feature=relmfu 4. Find weighted mean (more than previous) http://www.youtube.com/watch?v=5aeEP4z4hQ4&feature=relmfu 5. Find mean, variance, standard deviation for grouped data http://www.youtube.com/watch?v=YwC0hUsr6gs&feature=relmfu o Graph data: Histogram and Boxplot 1. Entering data, setting up StatPlot, making a histogram, the TRACE key http://www.youtube.com/watch?v=By0qU-YYBJA 2. Find upper fence, using StatPlot to make a boxplot http://www.youtube.com/watch?v=v0XNXaDmsGI&feature=relmfu o Combinations and Permutations http://www.youtube.com/watch?v=oCHk4xjnH7o&feature=related o Finding binomial probabilities http://www.youtube.com/watch?v=eiDrsHDW1UA&feature=fvwrel o Expected value for a discrete probability distribution - story problem http://www.youtube.com/watch?v=1AiqITqbvi4&feature=relmfu o Finding "at least" binomial probabilities using binomcdf http://www.youtube.com/watch?v=EUyqbzlfIS0&feature=relmfu o Find area under standard normal curve (to the left, to the right, 2 separate ends) http://www.youtube.com/watch?v=Msyto4gMoh8&feature=relmfu o Find invNorm(area to the left of a z-score) http://www.youtube.com/watch?v=xUNaiWz1E8k&feature=relmfu o Using normalcdf to find the probabilities/areas/percentile rank/proportion under any normal curve - story problem http://www.youtube.com/watch?v=ro2U2Ld1d84&feature=relmfu o Using invnorm to find the cutoff scores/percentiles under any normal curve - story problem http://www.youtube.com/watch?v=gTdD1wx8erU&feature=relmfu o Confidence Intervals 1. About a mean http://www.youtube.com/watch?v=Dg8GbnyEOz8 http://www.youtube.com/watch?v=g0DYjMizuBM&feature=relmfu http://www.youtube.com/watch?v=ooApW2M49pA&feature=relmfu 2. About a proportion http://www.youtube.com/watch?v=Dg8GbnyEOz8 http://www.youtube.com/watch?v=zejv8gQCrVU&feature=relmfu o Hypothesis Tests 1. Z-test, Using InvNorm to find critical value http://www.youtube.com/watch?v=SjsWi0VY5FA&feature=related 2. T-test http://www.youtube.com/watch?v=haCSmw4Be54 3. Proportion-test http://www.youtube.com/watch?v=-bi-RueuSyA&feature=relmfu o Scattergrams http://www.youtube.com/watch?v=G4FDs07CRRE http://www.youtube.com/watch?v=oCHk4xjnH7o&feature=related o Correlation http://www.youtube.com/watch?v=KzYIGrJ7esU&feature=fvwrel o Compute regression model http://www.youtube.com/watch?v=oCHk4xjnH7o&feature=related http://www.youtube.com/watch?v=L_h7nqNqgPs&feature=related http://www.youtube.com/watch?v=xojW6OEDfC4&feature=related MAT 140 Factoring using TI http://www.youtube.com/watch?NR=1&v=bRax59zzXoQ&feature=endscreen MAT 141