7th Grade Math Benchmarks

Revised August 2006

 

 

Students are expected to know content and apply skills from previous grades.

 

Mathematical reasoning and problem solving processes should be incorporated throughout all mathematics standards.  Students should use a variety of methods, such as words, numbers, symbols, charts, graphs, tables, diagrams, and models to communicate mathematical information and to explain mathematical reasoning and concepts.

 

Standard 1: Number and Operation

 

Students in Grade 7 read, write, compare, order, and place on a number line: rational numbers, including integers, fractions, decimals, and absolute values.  Students solve problems requiring the conversion between simple decimals, fractions, and percents.  Students add, subtract, multiply, and divide whole numbers, fractions, and decimals and students evaluate numerical expressions using the order of operations with whole numbers and decimals.  Students explain when estimation is appropriate and describe the usefulness of an estimate as opposed to an exact answer.

 

GOAL                                                                                       BENCHMARK

01. Understand and use numbers

Compare magnitudes and relative magnitudes of rational numbers, including integers, fractions, and decimals.

Understand and use real numbers (integers, fractions, decimals, and absolute values) to solve problems.

Solve problems requiring the conversion between simple decimals, fractions, ratios, and percents (including: unit cost, discount & sale price, percent one number is of another, number from a percent, and proportions).

Locate the position of rational numbers on a number line (including ordering and comparing real numbers from least to greatest and using <,>,=).

Model and write numerical fractions.

Rewrite multiple factors using exponents.

Explore scientific notation and its uses.

Apply the number theory concepts of primes, composites, and prime factorization and find the Least Common Multiple (LCM) and the Greatest Common Factor (GCF).

Recognize pertinent information for problem solving.

Describe the use of integers in real-world situations.

Use appropriate vocabulary.

02. Performs computations accurately

Recall the common equivalent fractions, decimals, and percents of halves, fourths, and tenths.

Add, subtract, multiply, and divide whole numbers, integers, fractions and decimals (including: developing computational fluency with division facts, mental math with multiples of 10, subtracting temperatures, and computing and counting change greater than $20.00.

Evaluate whole numbers in exponential form.

Expand the use of exponents (including finding products by applying rules for exponents, writing equivalent forms of numbers using exponents & scientific notation, identifying equivalent roots & radicals, computing 2nd & 3rd degree exponents, and estimating square roots using perfect squares.

Evaluate numerical expressions using the order of operations with whole numbers, integers, and decimals.

Accurately use divisibility rules & factorization.

Explore basic operations with integers (includes: order of operations and calculating % and % of change.

Select and use an appropriate method of computation from mental math, paper and pencil, calculator, or a combination of the three.

Understand the purpose and capabilities of appropriate technology.

Use computer applications to display and manipulate data (includes making a sketch to aid in organizing and visualizing data).

Use a variety of strategies including common mathematical formulas to compute problems drawn from real life situations (strategies include: draw a picture, make a model, guess and test, make a list, make a table, find a pattern, work backwards, solve a simpler problem, draw a diagram, or write an equation).

Use appropriate vocabulary and notations.

Use a variety of methods, such as words, numbers, symbols, charts, graphs, tables, diagrams, and models, to communicate mathematical information.

03. Estimates & judges reasonableness of results.

Estimate to predict computation results.

Recognize and explain when estimation is appropriate and describe the usefulness of an estimate as opposed to an exact answer.

Identify whether a given estimate is an overestimate or underestimate.

Estimate using decimals and fractions (including rounding to a given place value).

Use estimation to determine if solutions to word problems are reasonable.

Use a four-function calculator to solve complex grade-level problems.

Apply solutions and strategies to new problem situations.

 

Formulate conjectures and discuss why they must be or seem to be true

 

Use appropriate vocabulary and notations.

 

Standard 2: Concepts and Principles of Measurement

 

Students in grade 7 select and use appropriate units and tools to make formal measurements in both systems.  Students apply given formulas for perimeter, circumference, or area of triangles, circles, and quadrilaterals.  Students solve problems involving perimeter and area of rectangles and squares.  Students compare units and explain their relationship to one another and to real world applications.

 

GOAL                                                                                         BENCHMARK

01. Understand and use U.S. customary and metric measurements.

 

Select and use appropriate units and tools to make formal measurements in both systems. (segments and angles)

Apply estimation of measurement to real-world and content problems using standard measuring devices.

Recognize and explain the differences between measures of length, perimeter, area, and volume (capacity) and their measures within both systems.

Find the perimeter, circumference, or area of triangles, circles, and quadrilaterals.

Convert units of measurement within each system to solve a problem.

Convert between systems of measurement.

Solve problems involving length, perimeter, area, volume (capacity), angle measure, weight, mass, time, money, and temperature (including: estimating measures, calculating change back, making accurate measurements, etc.

Solve problems involving perimeter and area of rectangles and triangles.

Know the formulas for perimeter, area, and circumference.

Use appropriate vocabulary and notations.

02. Apply concepts of rates, ratios, and proportions.

Explain rates and their relationships to ratios, and use proportions to solve problems represented with a diagram.

Reduce rates to unit rates.

Develop the use of rates to make indirect measurements.

Develop the use of proportions, ratios, and scales.

03. Apply dimensional analysis.

 

Identify properly constructed dimensional analysis conversions.

Understand units and their relationship to one another and to real world applications (including: comparing amounts of money to determine or make change and identifying the number of items that could be purchased from a given amount of money.

 

Standard 3: Concepts and Language of Algebra and Functions

 

Students in grade 7 use variables in simple expressions and equations and students use symbols “<,” “>,” “=,” “≠,” “≤,” and “≥” to express relationships.  Students use the order of operations in evaluating simple algebraic expressions and students solve one-step equations.  Students extend patterns involving rational numbers and describe the rule that generates the pattern.

 

    GOAL                                                                   BENCHMARK

01. Use algebraic symbolism as a tool to represent mathematical relationships.

 

Use variables in simple expressions, equations, and inequalities.

Translate simple word statements and story problems into algebraic expressions and equations.

Use “<,” “>,” “=,” “≠,” “≤,” and “≥” to express relationships.

02. Evaluate algebraic expressions.

 

Evaluate simple numeric and algebraic expressions using commutative, associative, identity, zero, inverse, distributive, and substitution properties.

Understand and use the order of operations in evaluating simple algebraic expressions.

03. Solve algebraic equations and inequalities.

 

Solve one step equations with whole numbers and decimals using inverse operations. 

Solve simple two step equations.

Interpret expressions or solve problems using models & manipulatives.

Explore solutions of simple one step equations using negative numbers.

Explore graphical representation to show simple linear equations.

04.  Understand the concept of functions.

Extend patterns involving rational numbers and describe the rule that generates the pattern (includes: finding any term in a sequence given an expression or rule for the nth term).

Use functional relationships to explain how a change in one quantity impacts a change in another quantity.

Use appropriate vocabulary and notations.

05.  Represent equations, inequalities and functions in a variety of formats.

Represent a simple set of data in a table, as a graph, and as a mathematical relationship.

06.  Apply functions to a variety of problems.

Use patterns and linear functions to represent and solve simple problems.

 

 

Standard 4: Concepts and Principles of Geometry

 

Students in Grade 7 describe and classify relationships among types of one-, two-, and three- dimensional geometric figures using their defining properties.  Students draw and measure various angles and shapes using appropriate tools and students identify congruence, similarities, and line symmetry of shapes.  Students identify and plot points on a coordinate plane.

 

GOAL                                                                                       BENCHMARK

01. Apply concepts of size, shape, and spatial relationships.

 

Classify relationships among types of one- and two-, dimensional geometric figures, using their defining properties.

Draw and measure various angles and shapes using appropriate tools.

Apply fundamental concepts, properties and relationships among points, lines, rays, planes, angles, and shapes (includes: parallel lines, perpendicular lines; symmetry, congruency, similarity; acute, right, obtuse, adjacent, vertical, and corresponding angles; and horizontal, vertical, congruence, symmetry, curve, perpendicular, parallel, & intersection).

Explain and model the effects of reflections, translations, and rotations on various shapes (includes identifying, comparing, & constructing various 2 & 3 dimensional geometric shapes using appropriate tools.

Identify congruence, similarities, and line symmetry of shapes.

Explore and describe the concept of surface area and volume (capacity).

Use appropriate vocabulary and symbols.

Apply formulas for perimeter, circumference and area to triangles, quadrilaterals, and circles.

Apply formulas to measure volume & surface area.

02. Apply the geometry of right triangles.

Explore right triangle geometry.(definition of hypotenuse)

03. Apply graphing in two dimensions.

Identify and plot points on a coordinate plane (includes: creating, graphing, and analyzing ordered pairs).

 

 

Standard 5: Data Analysis, Probability, and Statistics

 

Students in Grade 7 read and interpret tables, charts, and graphs, including frequency tables, scatter plots, line graphs, line plots, bar graphs, histograms, circle graphs, and stem-and-leaf plots.  Students collect, organize and display data with appropriate notation in tables, charts and graphs, including scatter plots, line graphs, line plots, bar graphs, and stem-and-leaf plots.  Students determine the measures of central tendency – mean, median, and mode – with sets of data and students predict, perform, and record results of simple probability experiments. 

 

GOAL                                                                                       BENCHMARK

01. Understand data analysis.

 

Read and interpret tables, charts, and graphs, including frequency tables, scatter plots, broken line graphs, line plots, line graphs, bar graphs, histograms, circle graphs, and stem-and-leaf plots.

Explain conclusions drawn from tables, charts, and graphs.

Use appropriate vocabulary and notations.

02. Collect, organize, and display data.

 

Collect, organize, and display discrete and continuous data with appropriate notation in tables, charts, and graphs, including: scatter plots, line graphs, broken line graphs, line plots, bar graphs, circle graphs, and stem-and-leaf plots).

03. Apply simple statistical measurements.

 

Determine the measures of central tendency – mean, median, and mode – with simple sets of data (includes: solving practical problems involving the mean of a set of numbers).

Explore and discuss distribution of data, including range, frequency, gaps, and clusters.

04. Understand basic concepts of probability.

 

Predict, perform, and record results of simple probability experiments (includes: expressing probability of a simple event as ratios, fractions, decimals, or percents).

Recognize equally likely outcomes.

Explain that probability ranges from impossible to certain (0% to 100%).

Use the language of probability.

05. Make predictions or decisions based on data.

 

Make predictions based on simple experimental and theoretical probabilities.

Use appropriate vocabulary and notations.

 

 

Mathematics Vocabulary

By RIT Score

 

RIT Scores 211 – 220

 

acute angle

arranged

average

below zero

Celsius

century

centimeters per inch

centuries

combinations

common factor

common multiples

commutative

congruent angle

corresponding parts

counting number

decades

decimal

decimal form

decimal point

degrees

dice

dilation

dividend

enlargement

equivalent

expression

factor tree

fastest

fitted line

fractional part

fractions

gallons

geometric solid

graph

greatest common denominator

highest mean

hour

input

interest

likelihood

line of best fit

line plot

lowest terms

mean

measure of angle

micrometer

minutes

nearest dollar

negative

not prime

number cube

number sequence

obtuse angle

order

ounces

outcome

output

perpendicular

perpendicular line

portion

positive

positive linear relationship

prime factorization

probability

proof

protractor

ray

reciprocal

rectangular prism

rectangular solid

reduce

region

rotation

scatter plot

scientific notation

smaller

smallest

solve

square meter

square numbers

squares

standard form

straight angle

supplementary

symmetrical

systematic list

tails

tenth

three-dimensional

transformation

translation

triangular prism

triple

union

vertex

vertical angle

what shape

yards

 

 

RIT Scores 221 – 230

absolute value

addends

algebraic sentence

always true

area

arithmetic progression

base

between

chord

circumference

commission

common denominator

compute

cubic feet

cubic inch

cubic meter

cubic millimeter

cubic yard

deducted

depreciate

diameter

discount

divide

equality

equation of a line

equilateral

evaluate

even numbers

expanded notation

experimental probability

exponent

formula

frequency

frequency table

gallons

heaviest

identity element

if – then

integer

intersection

label (units)

least common denominator

less than sum

less than twice

lightest

linear graph

lowest common denominator

lowest terms

magic square

mathematical sentence

matrix

mean

median

metric units

mode

mortality

most

multiply

obtuse angle

odometer

origin

perimeter

Pi

polygon

product

proportion

quadrant

quarts

quotient

radius

radius squared

rate

ratio

real number

reasonable

rectangle

rectangular box

rectangular shape

regression equation

regression line

representative sample

scientific notation

segment BC

shorter

similar

slide

standard numeral

straight angle

survey

table

ten million

ten thousandth

tens digit

theoretical probability

thousandths

trapezoid

 

RIT Scores 231 – 240

acute triangle

algebraic expression

algebraic sentence

alternate interior angles

amount of sales

arithmetic progression

base

box-and-whiskers plot

car purchase

checking account

chord

columns

commission

coordinates of points

corresponding side

cubed

data point

depreciate

discount

edge

equality

equation of a line

equiangular triangle

fractional part

height

hypotenuse

identity element

if-then statement

inequality

isosceles

linear graph

mathematical sentence

matrix

mean salary

meters per minute

middle

miles per second

minus

negative coefficient

outlier

possibility

prime factor

prime factorization

rectangular house

regression equation

regression line

representative sample

rows

scalene triangle

scientific notation

secant

similar trapezoids

simple interest

solve for n

square numbers

square pyramid

square region

successive

sum of angles in triangle

tangent

tenth power

term in sequence

transformation

translation

tripled

vertex

 

RIT Scores 241 – 250

adjacent angle

algebra tiles

alternate exterior angle

alternate interior angle

angle bisector

base ten

circular

complementary angles

congruent triangle

construction

converse

coordinate

correlation

corresponding angles

corresponding parts of congruent triangles

cylindrical tank

decimal

diameter

discount

domain

doubled

endpoints

equilateral pyramid

factor (used with equations)

feet per second

fractions

function table

greatest decrease

hyperbolic

incline

infinite

inscribed

least common multiple

linear foot

linear pair

matrix

midpoint

mileage table

number sequence

opposite

point of intersection

polynomial

prime factors

Pythagorean theorem

quadrupled

radius

rectangular area

rectangular solid

regression equation

sales tax

sample space

semicircle

simultaneous equations

slope of parallel lines

solution set

solution to system

square kilometer

square yard

squared

symmetric

symmetrical halves

system of equations

tangent

time-and-a-half

transversal

tripled

varies inversely as the square

Venn diagram

x-axis

y-axis

y-intercept

 

RIT Scores 251 – 260

adjacent angles

bisect

centroid

circumscribed

collinear

complex

conclusion of if-then statement

conditional<