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Organizing lessons and topics for this grade.Grade 9
Functions, polynomials, quadratics, and modeling with equations.
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0 of 48 Grade 9 lessons completed
48 lessons in Grade 9
48 lessons
I can add and subtract polynomials by combining like terms and keeping signs accurate.
View subscription optionsI can analyze a model's assumptions and limitations and decide whether a prediction is reasonable in context.
View subscription optionsI can choose whether a situation is best modeled by a linear, exponential, or quadratic rule and justify the choice with evidence.
View subscription optionsI can compare two distributions by describing differences in center, spread, and consistency with numerical evidence.
View subscription optionsI can compare linear and exponential change in tables, graphs, and contexts.
View subscription optionsI can use data to choose a model, test the fit, and write a justified conclusion with units and a realistic limitation.
View subscription optionsI can connect a factored polynomial to its zeros by setting each factor equal to zero.
View subscription optionsI can tell when two variables are correlated and when there is enough context evidence to claim one variable likely causes the other.
View subscription optionsI can factor a polynomial by pulling out the greatest common factor from every term.
View subscription optionsI can factor a trinomial of the form x^2 + bx + c by finding integers whose product is c and whose sum is b.
View subscription optionsI can fit a linear model to data and interpret the meaning of the slope and intercept in context.
View subscription optionsI can graph linear functions from equations and connect the graph to slope and intercept.
Start lessonI can graph quadratic functions by identifying a vertex, axis of symmetry, and matching points.
Start lessonI can identify arithmetic sequences by checking for a constant difference between consecutive terms.
View subscription optionsI can identify geometric sequences by checking for a constant ratio between consecutive terms.
View subscription optionsI can interpret the direction and strength of correlation and explain what a residual says about one data point and a linear model.
View subscription optionsI can interpret quadratic functions, zeros, and the vertex.
View subscription optionsI can interpret what a quadratic model says about a real situation by reading values, intercepts, and the highest or lowest point in context.
View subscription optionsI can interpret rate of change from graphs, tables, equations, and short contexts.
View subscription optionsI can model a real situation with a system of linear equations and interpret the solution in context.
View subscription optionsI can model exact totals and real-world constraints with equations or inequalities and explain why the symbol, variable, and units match the context.
View subscription optionsI can model data with linear functions and decide whether a linear rule fits the pattern.
View subscription optionsI can model exponential growth and decay in real-world contexts.
View subscription optionsI can multiply polynomials by distributing each factor completely.
View subscription optionsI can recognize exponential patterns and compare them with linear growth.
View subscription optionsI can recognize exponential relationships in tables, graphs, and short contexts.
Start lessonI can recognize when a table, graph, or sequence shows quadratic growth instead of linear growth.
View subscription optionsI can represent linear functions and interpret slope and intercept in context.
View subscription optionsI can simplify expressions with like bases by using exponent rules and repeated-factor reasoning.
View subscription optionsI can simplify algebraic expressions by combining like terms, distributing correctly, and checking equivalence.
View subscription optionsI can solve absolute-value equations and inequalities by thinking about distance from a center and deciding whether solutions stay within or outside a boundary.
View subscription optionsI can solve compound inequalities, graph the solution correctly, and explain whether the word and means overlap or the word or means either branch.
View subscription optionsI can solve multi-step linear equations by simplifying each side, isolating the variable, and checking the solution in the original equation.
View subscription optionsI can solve quadratic equations by factoring, setting each factor equal to zero, and checking both solutions in the original equation.
View subscription optionsI can solve quadratic equations by isolating a squared expression, using positive and negative square roots when needed, and checking every solution in the original equation.
View subscription optionsI can solve a system of two linear equations by elimination and explain why combining equations can remove one variable.
View subscription optionsI can solve a system of two linear equations by graphing and explain what the intersection means in context.
Start lessonI can solve a system of two linear equations by substitution and explain why replacing an equal quantity keeps the system balanced.
View subscription optionsI can solve a system of two linear inequalities by graphing and interpret the overlapping region as the set of solutions.
View subscription optionsI can solve and interpret systems of linear equations in contextual problems.
View subscription optionsI can solve a linear equation in one variable and justify each step.
View subscription optionsI can summarize one-variable data by describing center, spread, shape, and any unusual values.
View subscription optionsI can describe and graph transformations of linear functions by changing slope and intercept.
View subscription optionsI can describe and graph how parabolas shift, reflect, and stretch from the parent function y = x^2.
View subscription optionsI can write equations of lines from graphs, tables, points, and short situations.
View subscription optionsI can write both explicit and recursive rules for arithmetic sequences using the first term and common difference.
View subscription optionsI can write both explicit and recursive rules for geometric sequences using the first term and common ratio.
View subscription optionsI can write exponential functions from tables, graphs, and short contexts.
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