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Algebra I

Montana Algebra I Curriculum

Video lessons and practice for every Algebra I topic. Aligned to Montana Math Content Standards so Montana high school students can keep up or get ahead.

Montana Algebra I Curriculum | StudyPugHelp

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ID

Standard

StudyPug Topic

CC.HSA.CED.A.1

Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions.

CC.HSA.CED.A.2

Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.

CC.HSA.CED.A.3

Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or non-viable options in a modeling context.

CC.HSA.CED.A.4

Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations.

CC.HSA.REI.A.1

Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.

CC.HSA.REI.B.3

Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.

CC.HSA.REI.C.5

Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.

CC.HSA.REI.C.6

Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables.

CC.HSA.REI.D.10

Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line).

CC.HSA.REI.D.11

Explain why the x-coordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately, e.g., using technology to graph the functions, make tables of values, or find successive approximations. Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions.

CC.HSA.REI.D.12

Graph the solutions to a linear inequality in two variables as a half-plane (excluding the boundary in the case of a strict inequality), and graph the solution set to a system of linear inequalities in two variables as the intersection of the corresponding half-planes.

CC.HSA.SSE.A.1

Interpret expressions that represent a quantity in terms of its context.

CC.HSA.SSE.B.3

Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression.

CC.HSA.APR.A.1

Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials.

CC.HSA.APR.B.3

Identify zeros of polynomials when suitable factorizations are available, and use the zeros to construct a rough graph of the function defined by the polynomial.

CC.HSN.RN.A.1

Explain how the definition of the meaning of rational exponents follows from extending the properties of integer exponents to those values, allowing for a notation for radicals in terms of rational exponents.

CC.HSF.IF.A.1

Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If f is a function and x is an element of its domain, then f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y = f(x).

CC.HSF.IF.A.2

Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.

CC.HSF.IF.B.5

Relate the domain of a function to its graph and, where applicable, to the quantitative relationship it describes.

CC.HSF.IF.B.6

Calculate and interpret the average rate of change of a function (presented symbolically or as a table) over a specified interval. Estimate the rate of change from a graph.

CC.HSF.IF.C.9

Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions).

CC.HSF.BF.A.2

Write arithmetic and geometric sequences both recursively and with an explicit formula, use them to model situations, and translate between the two forms.

CC.HSF.BF.B.3

Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k (both positive and negative); find the value of k given the graphs. Experiment with cases and illustrate an explanation of the effects on the graph using technology.

CC.HSF.LE.A.1

Distinguish between situations that can be modeled with linear functions and with exponential functions.

CC.HSF.LE.A.2

Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table).

CC.HSF.LE.A.3

Observe using graphs and tables that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function.

CC.HSA.REI.C.7

Solve a simple system consisting of a linear equation and a quadratic equation in two variables algebraically and graphically.

CC.HSS.ID.A.1

Represent data with plots on the real number line (dot plots, histograms, and box plots).

CC.HSS.ID.A.2

Use statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets.

CC.HSS.ID.A.3

Interpret differences in shape, center, and spread in the context of the data sets, accounting for possible effects of extreme data points (outliers).

CC.HSS.ID.B.6

Represent data on two quantitative variables on a scatter plot, and describe how the variables are related.

CC.HSS.ID.C.7

Interpret the slope (rate of change) and the intercept (constant term) of a linear model in the context of the data.

Montana Algebra I: What Students Learn

Algebra I is the gateway to all higher-level math in Montana high schools. Students move from arithmetic reasoning to abstract thinking, learning to write and solve equations, graph functions, and analyze data. Every topic in this course aligns to the Montana Math Content Standards.

Equations and Inequalities

A large portion of Algebra I focuses on building and solving equations and inequalities. Montana students learn to:

  • Create equations in one or two variables and use them to solve real-world problems
  • Solve linear equations and inequalities, including those with letter coefficients
  • Rearrange formulas to isolate a variable of interest
  • Represent constraints using systems of equations or inequalities and interpret solutions

StudyPug video lessons walk through each of these skills step by step, so students can follow the same reasoning their teacher uses in class.

Systems of Equations

Students learn to solve systems of two linear equations exactly and approximately. Topics include solving by substitution, elimination, and graphing. StudyPug shows why replacing one equation with a combination of two equations preserves the solution set — a key concept for justifying algebraic steps.

Functions

Functions are a central theme in Algebra I. Montana students learn to:

  • Understand function notation and evaluate functions for given inputs
  • Interpret key features of graphs and tables, including intercepts, maxima, and rate of change
  • Calculate average rate of change over an interval
  • Write functions that model relationships between two quantities
  • Identify transformations: how replacing f(x) with f(x) + k, k·f(x), f(kx), or f(x + k) shifts or scales a graph

Linear and Exponential Functions

Students compare linear and exponential growth, construct both types of functions from graphs and tables, and interpret their parameters in context. Key skills include writing arithmetic and geometric sequences recursively and explicitly, and observing that exponential growth eventually outpaces linear or polynomial growth.

Polynomial Expressions and Rational Exponents

Algebra I introduces polynomial arithmetic — adding, subtracting, and multiplying polynomials — and connects rational exponents to radical notation. Students learn to:

  • Rewrite expressions using properties of exponents
  • Factor polynomials and use zeros to sketch rough graphs
  • Choose equivalent forms of expressions to reveal properties such as maximum value or growth rate

Quadratic Equations

Students solve quadratic equations in one variable using factoring, completing the square, and the quadratic formula. They also solve systems consisting of one linear and one quadratic equation, both algebraically and graphically.

Statistics and Data Analysis

The data strand teaches Montana students to represent data using dot plots, histograms, and box plots; compare distributions by center and spread; and work with two-variable data on scatter plots. Students learn to:

  • Interpret slope and intercept of a linear model in context
  • Compute and interpret correlation coefficients using technology
  • Distinguish between correlation and causation

How StudyPug Supports Montana Algebra I Students

Every topic listed above has a dedicated video lesson and practice problem set on StudyPug. Lessons are 5–15 minutes long, broken into segments students can pause and replay. Whether a Montana student needs help with tonight's homework or wants to review before a test, StudyPug covers every standard in the Montana Math Content Standards for Algebra I.