CURRICULUM SUMMARY – September to December 2014 SUBJECT: Mathematics SL Week Learning objectives PROBABILITY - revision 1 2 3 PROBABILITY – revision Normal distribution. x Agata Piskorz Using tables of probability distributions Using the formula: E( X ) xP( X x) . Revising the coefficients from the binominal expansion. Using GDC. n r Using the formula X ~ B(n, p) P( X r ) p r (1 p) n r Use of calculator to find normal probabilities; the reverse process PROBABILITY , PROBABILITY DISTRIBUTIONSrevision TRIGONOMETRIC FUNCTIONS Students will understand and use: The basic sine and cosine curves 5 Standardized normal variable. z TEACHER: Solving past papers questions PROBABILTY DISTRIBUTIONS Students will understand and use: discrete random variables and their probability distributions. expected value (mean), E(X ) for discrete data. applications of expectation, for example, games of chance. Binomial distribution. Mean of the binomial distribution. E ( X ) np . 4 YEAR GROUP: IB2 Activities (in brief) Amplitude, period, , equation of the principal axis of functions : y=Asin B(x+C)+D, y=Acos B(x+C)+D, The tangent function y=Atan B(x+C)+D TRIGONOMETRY – revision Sine and cosine models to solve practical problems The Pythagorean identity cos2θ + sin2θ =1. Double angle identities for sine and cosine Solving past papers questions. Test. Using the unit circle to investigate the basic sine, cosine and tangent curves. Drawing graphs of trigonometric functions without using technology. Trigonometric functions graphs transformations : vertical stretch, horizontal stretch, vertical and horizontal translation, reflections in . Using GDC (Graphic Display Calculator) to sketch and analyze graphs of the trigonometric functions; Solving past papers questions. Investigation – mean monthly temperature modeling; Using sine and cosine models to solve practical problems; Using DGC to solve equations involving trigonometric functions; 6 Relationship between trigonometric ratios. Trigonometric equations TRIGONOMETRY, TRIGONOMETRIC FUNCTIONS revision 7 8 VECTORS Students will understand and use: Tied vectors and free vectors Equal vectors, opposite vectors, the null vector; parallel vectors. Operations with vectors. Standard basis vectors: i, j , k . A vector as a linear combination of the standard basis vectors. OV -the position vector of a point V and its coordinates. Coordinates of any vector in the Cartesian 2 and 3-dimensional coordinate system. Magnitude of a vector. INTERNAL ASSESSMENT – students ideas The scalar product of two vectors. Parallel and perpendicular vectors The angle between two vectors. 9 DESCRIPTIVE STATISTICS - revision Vector equation of a line in two and three dimensions: r = a + tb . 10 LINEAR MODELLING - revision Relationship between lines The angle between two lines. 11 VECTORS AND LINES - revision INTERNAL ASSESSMENT – first draft feedback Solving trigonometric equations in a finite interval analytically. Solving questions leading to quadratic equations in sin x, cos x or tan x . Using of technology to solve a variety of equations, including those where there is no appropriate analytic approach. Solving past papers questions. Test. Multiplication of a vector by a scalar; Adding and subtracting vectors (the triangle low, the parallelogram low ) Calculating coordinates of a vector AB when coordinates of points A and B are given. (Vector AB expressed as OB OA ). v1 Using column representation: v v2 v1 i v2 j v3 k . v 3 Calculating distances between points in two and three dimensions Investigating algebraic properties of a scalar product. Finding angle between two vectors. Writing and interpreting equations of lines in 2D and 3D. Solving constant velocity problems - interpretation of t as time and b as velocity, with |b| representing speed. Distinguishing between coincident and parallel lines. Finding the point of intersection of two lines. Determining whether two lines intersect. Finding the shortest distance from a line to a point. Solving past papers questions. Test. DIFFERENTIAL CALCULUS Students will understand and use: Informal ideas of limit and convergence. Limit notation. Definition of derivative at a point from first principles as Using technology to investigate limits and convergence. Investigating behavior of the gradient of the line through two points P and Q, on the graph of a function, as Q approaches P. Drawing tangent to a curve at a point. Finding some simple gradient functions from first principles. f ( x0 h ) f x0 f ' ( x0 ) lim h 0 h 12 13 14 15 The derivative (gradient) function. FUNCTIONS - revision Simple rules of differentiation The chain rule The product rule The quotient rule. The second and higher derivatives. FUNCTIONS - revision Tangents and normals, and their equations. Local maximum and minimum points. Increasing and decreasing functions. FUNCTIONS - revision Concave-up” and “concave-down” graphs . Points of inflexion with zero and non-zero gradients. Graphical behavior of functions, including the relationship between the graphs of f , f ′ and f ′′ Optimization. Rates of change. FUNCTIONS, DIFFERENTIAL CALCULUS - revision Using technology to illustrate derivatives: derivative of 𝑥 𝑛 sin x , cos x , tan x ,𝑒𝑥 and ln x . Differentiation of a sum and a real multiple of these functions. Using rules of differentiation to find derivatives. Using both forms of notation: f ' ( x ) and 𝑑𝑦 𝑑𝑥 for the first derivative. Finding equations of tangents and normal at a point. Testing for maximum or minimum - using change of sign of the first derivative and using sign of the second derivative. Investigating necessary and sufficient conditions for a point of inflexion: Testing for stationary points and finding their nature. Sketching graphs Solving optimisation problems that include profit, area, volume… Motion on a line - using derivatives to find displacement, velocity and acceleration. Solving practical problems.