Try our Free Online Math Solver!

Online Math Solver
Middle School PreAlgebra
Course Description:
In this twosemester course, students will study PreAlgebra and its application
to the real
world. Students will be required to demonstrate proficiency in the content to
pass the
course.
The standards for this course are the California Grade 7 Mathematics Standards
as
approved by the California Board of Education. The curriculum for this course
prepares
students for both the annual state testing and for High School Exit Exam.
This course is a prerequisite for both Algebra 1 and Algebra 1A/1B.
Content Standards:
Standard 1: Number Sense and Operations
Benchmarks Students will: 
Performances Students who meet the standard will: 
1. Students will know the properties of, and compute with, rational numbers expressed in a variety of forms 
1.1 Read, write, and compare rational
numbers in scientific notation with approximate numbers using scientific notation. (exposure) 1.2 Add, subtract, multiply, and divide rational numbers and take positive rational numbers to whole number powers. 1.3 Convert fractions to decimals and percents and use these representations in estimations, computations, and applications. 1.4 Differentiate between rational and irrational numbers. 1.5 Know that every rational number is either a terminating or repeating decimal and be able to convert terminating decimals into reduced fractions. 1.6 Calculate the percentage of increase and decreased of a quantity. 1.7 Solve problems that involve discounts, markups, commissions, and profit and compute simple and compound interest. 
2. Students use exponents, powers, and roots and use exponents in working with fractions. 
2.1 Understand negative whole number
exponents. Multiply and divide expressions involving exponents with a common base . 2.2 Add and subtract fractions by using factoring to find common denominators. 2.3 Multiply, divide and simplify rational numbers by using exponent rules. 2.4 Use the inverse relationship between raising to a power and extracting the root of a perfect square integer ; for an integer that is not a square, determine without a calculator the two integers between which its square root lies and explain why. 2.5 Understand the meaning of the absolute value of a number ; interpret the absolute value as the distance of the number from zero on a number line; and determine the absolute value of real numbers. 
Standard 2: Algebra and Functions
Benchmarks Students will: 
Performances Students who meet the standard will: 
1. Students express quantitative relationships by using algebraic terminology, expressions, equations, inequalities, and graphs. 
1.1 Use variables and appropriate operations to
write an expression, an equation, an inequality, or a system of equations or inequalities that represent a verbal description (exposure) 1.2 Use the correct order of operations to evaluate algebraic expressions. 1.3 Simplify numerical expressions by applying properties of rational numbers and justify the process used. 1.4 Use algebraically terminology correctly. 1.5 Represent quantitative relationships graphically and interpret the meaning of a specific part of a graph in the situation represented by the graph. 
2. Students interpret and evaluate expressions involving integer powers and simple roots 
2.1 Interpret positive wholenumber powers as
repeated multiplication and negative wholenumber powers as repeated division or multiplication by the multiplicative inverse. Simplify and evaluate expressions that involve exponent (exposure) 2.2 Multiply and divide monomials; extent the process of taking powers and extracting roots to monomials when the latter results in a monomial with an integer exponent. 
3. Students graph and interpret linear and some nonlinear functions. 
3.1 Graph functions of the form y=nx^{3}
and y=nx^{2} and use in solving problems (exposure) 3.2 Plot the values from the volumes of threedimensional shapes for various values of the edge lengths (exposure) 3.3 Graph linear functions, noting that the vertical change per unit of horizontal change is always the same and know that the ratio (“rise” over “run”) is called the slope of the graph. 3.4 Plot the values of quantities whose ratios are always the same. Fit the line to the plot and understand that the slope of the line equals the quantities. 
4. Students solve simple linear equations and inequalities over the rational numbers. 
4.1 Solve twostep linear equations and
inequalities in one variable over the rational numbers, interpret the solution or solutions in the context from which they arose, and verify the reasonableness of the results. 4.2 Solve multistep problems involving rate, average speed, distance and time or a direct variation. 
Standard 3: Geometry and Measurement
Benchmarks Students will: 
Performances Students who meet the standard will: 
1. Students choose appropriate units of measure and use ratios to convert within and between measurement systems in solve problems. 
1.1 Compare weights, capacities, geometric
measures, times and temperature within and between measurement systems. 1.2 Construct and read drawings and models made to scale (exposure) 1.3 Use measures expressed as rates and measures expressed as products to solve problems: check the units of the solutions; and use dimensional analysis to check the reasonableness of the answer. 
2. Students compute the perimeter, area, and volume of common geometric objects and use the results to find measures of less common objects. They know how perimeter, area and volume are affected by the change in scale. 
2.1 Use formulas routinely for finding the
perimeter and are of basic twodimensional figures and the surface area and volume of basic threedimensional figures, including rectangles, parallelograms, trapezoids, squares, triangles, circles, prisms and cylinders. 2.2 Estimate and compute the area of more complex or irregular two and threedimensional figures by breaking the figures down into more basic geometric object (exposure) 2.3 Compute the length of the perimeter, the surface area of the faces, and the volume of a threedimensional object built from rectangular solids. Understand that when the lengths of all dimensions are multiplied by a scale factor, the surface are is multiplied by the square of the scale factor and the volume is multiplied by the cube of the scale factor (exposure) 2.4 Relate the changes in measurement with a change of scale to the units used and to conversions between units (exposure) 
3. Students know the Pythagorean theorem and deepen their understanding of plane and solid geometric shapes by constructing figures that meet given conditions and by identifying attributes of figures. 
3.1 Identify and construct basic
elements of geometric figures by using a compass and straightedge (exposure) 3.2 Understand and use coordinate graphs to plot simple figures, determine lengths and areas related to them and determine their image under translations and reflection (exposure) 3.3 Know and understand the Pythagorean theorem and its converse and use it to find the length of the missing side of a right triangle and the lengths of the other line segments and, in some situations, empirically verify the Pythagorean theorem by direct measurement. 3.4 Demonstrate an understanding of conditions that indicate two geometrical figures are congruent and what congruence means about the relationships between the sides and angles of the two figures. 3.5 Construct twodimensional patterns for threedimensional models, such as cylinders, prisms and cones (exposure) 3.6 Identify elements of threedimensional geometric objects and describe how two or more objects are related in space (exposure) 
Standard 4: Data, Statistics and Probability
Benchmarks Students will: 
Performances Students who meet the standard will: 
1. Students collect, organize and represent data sets that have one or more variables and identify relationships among variables within a data set by hand and through the use of an electronic spreadsheet software program. 
1.1 Know various forms of display for data sets,
including a stemandleaf plot or boxandwhisker; use the forms to display a single set of data or to compare two sets of data (exposure) 1.2 Represent two numerical variables on a scatter plot and informally describe how the data points are distributed and any apparent relationship that exists between the two variables (exposure) 1.3 Understand the meaning of, and be able to compute, the minimum, the lower quartile, the median, the upper quartile and the maximum of a data set (exposure) 
2. Collect and interpret data and make decisions based on their interpretations. 
2.1 Use experimental and theoretical probability
appropriately to represent to represent and solve problems. 2.2 Identify examples and explain impact of probability on real life. 2.3 Compute probability of independent/dependent events occurring. 
Standard 5: Mathematical Reasoning
Benchmarks Students will: 
Performances Students who meet the standard will: 
1. Make decisions about how to approach problems. 
1.1 Analyze problems by identifying
relationships, distinguishing relevant from irrelevant information, identifying missing information, sequencing and prioritizing information and observing patterns. 1.2 Formulate and justify mathematical conjectures based on a general description of the mathematical question or problem posed. 1.3 Determined when and how to break a problem into simpler parts. 
2. Use strategies, skills and concepts in finding solutions 
2.1 Use estimation to verify the
reasonableness of calculated results 2.2 Apply strategies and results from simpler problems to more complex problems. 2.3 Estimate unknown quantities graphically and solve for them b using logical reasoning and arithmetic and algebraic techniques. 2.4 Make and test conjectures by using both inductive and deductive reasoning. 2.5 Use a variety of methods, such as words, numbers, symbols, charts, graphs, tables, diagrams, and models, to explain mathematical reasoning. 2.6 Express the solution clearly and logically by using the appropriate mathematical notation and terms and clear language; support solutions with evidence both in verbal and symbolic work. 2.7 Indicate the relative advantages of exact and approximate solutions to problems and give answers to a specified degree of accuracy. 2.8 Make precise calculations and check the validity of the results from the context of the problem. 
3. Determine a solution is complete and move beyond a particulate problem by generalizing to other situations. 
3.1 Evaluate the reasonableness of the solution
in the context of the original situation. 3.2 Note the method of deriving the solution and demonstrate a conceptual understanding of the derivation by solving similar problems. 3.3 Develop generalizations of the results obtained and the strategies used and apply them to new problem situations. 
Prev  Next 