Colorado Springs School District 11 Year 09 Integrated Algebra & Geometry Curriculum Map – Last revised June 09, 2009 Approximately 17 – 20 days per unit Overall mathematical curricular approaches to tying various mathematical concepts together are: NUMERACY MULTI-REPRESENTATIONS TABLE GRAPH EQUATION DESCRIPTION INTERPRET INTERCEPTS (REAL-WORLD MEANINGS) MEASUREMENT FIRST SEMESTER Quarter 1 Part 1 FUNCTIONS What is a function? (condense from last year into just a few lessons) o Domain/range/independent & dependent variables Drawing examples of linear and non-linear functions with a given domain and/or range function notation (embed order of operations) Numeracy with and without calculator -- Include scientific notation, lots more practice with order of operations (including integer operations, fractions, decimals, distributive property, combining like terms); translating words into expressions o Extension: binomial distribution (FOIL) Contextual meanings when a variable is equal to zero o y-intercept as the “start value” make explicit that the domain value is zero o x-intercept as a significant domain value make explicit that the range value is zero include negative values for the x-intercept Bank of short, quick-hitting naked problems to use as warm-ups or tickets out the door Assessment will be non-calculator Quarter 1 Part 2 (embed dimensional analysis throughout) Solving equations (1- & 2-step) Slope/rates Continue work interpreting x- and y-intercepts Writing Equations to model situations and data (embed order of operations) Direct variation/ (review of proportions) Dimensional analysis needs to be more explicitly embedded – connect to rates – give them conversion factors Lots more practice with solving equations, (single listing of the variable only) Literal equations introduced (match science common curriculum) eg: F=ma, solve for m; include examples of standard and slope-intercept forms for manipulation purposes only: 2x+3y=5, solve for y; y=x/3-2, solve for x. Quarter 2 Part 1 Given 2 points, write the equation of a line Graphing lines from equations in multiple forms Lines of best fit Point-slope form of an equation for a line o Distributive property o Geometric patterns—reinforcement of linear functions o Use point-slope form rather than “walk back” to stage 0 Graphing equations from table, graph, situation Quarter 2 Part 2 o Theme: one dimensional measurement – be explicit about functional approach – create linear situations: A(h) = (1/2)(10)(h), areas of all triangles with base length 10, what’s the domain, range? Perimeter o Include standard form equations: 2W+2L=P o Scale change effects in perimeter Pythagorean Theorem o Inverse in reverse with squares Angle relationships (including measurement with a protractor) o In what ways is measuring an angle the same as measuring a line segment? o Naming conventions for angles Convention for congruent angle notation in figures o Complementary and supplementary angles Teaching proportions o Variables on top and bottom Similar figures o Extensive, including indirect measurement o Naming convention for polygons (especially triangles) o The angle sum of a triangle is 180 degrees o Special case: congruence when scaling factor equals 1 Convention for congruent side notation in figures Dimensional analysis needs to be more explicitly embedded Create situations that yields equations with multiple listings of the variable to practice combining terms Quarter 3 Part 1 o Theme: two and three dimensional measurement – be explicit about functional approach– create linear situations: V(h) = (5²)(h), volumes of all rectangular prisms with a square base of side length 5, what’s the domain, range? Area, surface area, volume, (embed scientific notation) o Measurement o Literal equations (look for opportunities for standard form) o Equation manipulation o Scale changes in volume and area o Include expressing answers in terms of pi o Dimensional analysis needs to be more explicitly embedded o Pyramids, cones, prisms, cylinders and spheres Create situations that yields equations with multiple listings of the variable to practice combining terms Work with more complex compound figures for find areas and volumes by dissection Quarter 3 Part 2 Probability & statistics o Geometric (area model) o Theoretical vs. observed (the big idea for this unit) o Guiding question: “What do you expect?” Measures of center Given a central tendency statistic, work backwards to find a missing data point Mechanisms for communicating data (that could be used as a basis for observed probability) o 5 number summary o Interpretation of data: Stem & leaf plot Histograms Bar graph Pie chart o Which display is most appropriate for a given situation or purpose? Misleading statistics o Sampling o Bias Observed probability – trials and successes o Connect to data displays o Collect to misleading statistics Theoretical probability o Sample space o Independent vs. dependent events o Counting principle Expected value (based on both theoretical and observed prob.) o Connect to proportional reasoning o Connect expected value to mean QUARTER 4 Part 1 Systems of Equation: only slope-intercept form o Continue work with contextual interpretations of x and y intercepts Make explicit that either the domain or range value is zero o Solving by substitution o Explain the solution in the context of the problem o Consistent and inconsistent systems Parallel – systems with no solutions (perpendicular unnecessary) o Variables on both sides o Graphical solutions o Use a solution to provide advice to someone QUARTER 4 Part 2 Systems of Equation: include standard form and point-slope form o Consistent and independent (unique solution), consistent and dependent (infinitely many solutions) and inconsistent systems o Solving by substitution (with one of the equations in standard form) o Solving by elimination o Solving by graphing (equations in standard form) o Word problems resulting in systems o Inequalities – 1 & 2 dimensions Graphing Solving