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.
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<