Texas Administrative Code
Title 19 - EDUCATION
Part 2 - TEXAS EDUCATION AGENCY
Chapter 111 - TEXAS ESSENTIAL KNOWLEDGE AND SKILLS FOR MATHEMATICS
Subchapter B - MIDDLE SCHOOL
Section 111.27 - Grade 7, Adopted 2012
Universal Citation: 19 TX Admin Code ยง 111.27
Current through Reg. 49, No. 38; September 20, 2024
(a) Introduction.
(1) The desire to achieve
educational excellence is the driving force behind the Texas essential
knowledge and skills for mathematics, guided by the college and career
readiness standards. By embedding statistics, probability, and finance, while
focusing on computational thinking, mathematical fluency, and solid
understanding, Texas will lead the way in mathematics education and prepare all
Texas students for the challenges they will face in the 21st century.
(2) The process standards describe ways in
which students are expected to engage in the content. The placement of the
process standards at the beginning of the knowledge and skills listed for each
grade and course is intentional. The process standards weave the other
knowledge and skills together so that students may be successful problem
solvers and use mathematics efficiently and effectively in daily life. The
process standards are integrated at every grade level and course. When
possible, students will apply mathematics to problems arising in everyday life,
society, and the workplace. Students will use a problem-solving model that
incorporates analyzing given information, formulating a plan or strategy,
determining a solution, justifying the solution, and evaluating the
problem-solving process and the reasonableness of the solution. Students will
select appropriate tools such as real objects, manipulatives, algorithms, paper
and pencil, and technology and techniques such as mental math, estimation,
number sense, and generalization and abstraction to solve problems. Students
will effectively communicate mathematical ideas, reasoning, and their
implications using multiple representations such as symbols, diagrams, graphs,
computer programs, and language. Students will use mathematical relationships
to generate solutions and make connections and predictions. Students will
analyze mathematical relationships to connect and communicate mathematical
ideas. Students will display, explain, or justify mathematical ideas and
arguments using precise mathematical language in written or oral
communication.
(3) The primary
focal areas in Grade 7 are number and operations; proportionality; expressions,
equations, and relationships; and measurement and data. Students use concepts,
algorithms, and properties of rational numbers to explore mathematical
relationships and to describe increasingly complex situations. Students use
concepts of proportionality to explore, develop, and communicate mathematical
relationships, including number, geometry and measurement, and statistics and
probability. Students use algebraic thinking to describe how a change in one
quantity in a relationship results in a change in the other. Students connect
verbal, numeric, graphic, and symbolic representations of relationships,
including equations and inequalities. Students use geometric properties and
relationships, as well as spatial reasoning, to model and analyze situations
and solve problems. Students communicate information about geometric figures or
situations by quantifying attributes, generalize procedures from measurement
experiences, and use the procedures to solve problems. Students use appropriate
statistics, representations of data, and reasoning to draw conclusions,
evaluate arguments, and make recommendations. While the use of all types of
technology is important, the emphasis on algebra readiness skills necessitates
the implementation of graphing technology.
(4) Statements that contain the word
"including" reference content that must be mastered, while those containing the
phrase "such as" are intended as possible illustrative examples.
(b) Knowledge and skills.
(1) Mathematical process standards. The
student uses mathematical processes to acquire and demonstrate mathematical
understanding. The student is expected to:
(A) apply mathematics to problems arising in
everyday life, society, and the workplace;
(B) use a problem-solving model that
incorporates analyzing given information, formulating a plan or strategy,
determining a solution, justifying the solution, and evaluating the
problem-solving process and the reasonableness of the solution;
(C) select tools, including real objects,
manipulatives, paper and pencil, and technology as appropriate, and techniques,
including mental math, estimation, and number sense as appropriate, to solve
problems;
(D) communicate
mathematical ideas, reasoning, and their implications using multiple
representations, including symbols, diagrams, graphs, and language as
appropriate;
(E) create and use
representations to organize, record, and communicate mathematical
ideas;
(F) analyze mathematical
relationships to connect and communicate mathematical ideas; and
(G) display, explain, and justify
mathematical ideas and arguments using precise mathematical language in written
or oral communication.
(2) Number and operations. The student
applies mathematical process standards to represent and use rational numbers in
a variety of forms. The student is expected to extend previous knowledge of
sets and subsets using a visual representation to describe relationships
between sets of rational numbers.
(3) Number and operations. The student
applies mathematical process standards to add, subtract, multiply, and divide
while solving problems and justifying solutions. The student is expected to:
(A) add, subtract, multiply, and divide
rational numbers fluently; and
(B)
apply and extend previous understandings of operations to solve problems using
addition, subtraction, multiplication, and division of rational
numbers.
(4)
Proportionality. The student applies mathematical process standards to
represent and solve problems involving proportional relationships. The student
is expected to:
(A) represent constant rates
of change in mathematical and real-world problems given pictorial, tabular,
verbal, numeric, graphical, and algebraic representations, including d
= rt;
(B) calculate unit
rates from rates in mathematical and real-world problems;
(C) determine the constant of proportionality
(k = y/x) within mathematical and real-world
problems;
(D) solve problems
involving ratios, rates, and percents, including multi-step problems involving
percent increase and percent decrease, and financial literacy problems;
and
(E) convert between measurement
systems, including the use of proportions and the use of unit rates.
(5) Proportionality. The student
applies mathematical process standards to use geometry to describe or solve
problems involving proportional relationships. The student is expected to:
(A) generalize the critical attributes of
similarity, including ratios within and between similar shapes;
(B) describe [PI] as the ratio of the
circumference of a circle to its diameter; and
(C) solve mathematical and real-world
problems involving similar shape and scale drawings.
(6) Proportionality. The student applies
mathematical process standards to use probability and statistics to describe or
solve problems involving proportional relationships. The student is expected
to:
(A) represent sample spaces for simple
and compound events using lists and tree diagrams;
(B) select and use different simulations to
represent simple and compound events with and without technology;
(C) make predictions and determine solutions
using experimental data for simple and compound events;
(D) make predictions and determine solutions
using theoretical probability for simple and compound events;
(E) find the probabilities of a simple event
and its complement and describe the relationship between the two;
(F) use data from a random sample to make
inferences about a population;
(G)
solve problems using data represented in bar graphs, dot plots, and circle
graphs, including part-to-whole and part-to-part comparisons and
equivalents;
(H) solve problems
using qualitative and quantitative predictions and comparisons from simple
experiments; and
(I) determine
experimental and theoretical probabilities related to simple and compound
events using data and sample spaces.
(7) Expressions, equations, and
relationships. The student applies mathematical process standards to represent
linear relationships using multiple representations. The student is expected to
represent linear relationships using verbal descriptions, tables, graphs, and
equations that simplify to the form y = mx + b.
(8) Expressions, equations, and
relationships. The student applies mathematical process standards to develop
geometric relationships with volume. The student is expected to:
(A) model the relationship between the volume
of a rectangular prism and a rectangular pyramid having both congruent bases
and heights and connect that relationship to the formulas;
(B) explain verbally and symbolically the
relationship between the volume of a triangular prism and a triangular pyramid
having both congruent bases and heights and connect that relationship to the
formulas; and
(C) use models to
determine the approximate formulas for the circumference and area of a circle
and connect the models to the actual formulas.
(9) Expressions, equations, and
relationships. The student applies mathematical process standards to solve
geometric problems. The student is expected to:
(A) solve problems involving the volume of
rectangular prisms, triangular prisms, rectangular pyramids, and triangular
pyramids;
(B) determine the
circumference and area of circles;
(C) determine the area of composite figures
containing combinations of rectangles, squares, parallelograms, trapezoids,
triangles, semicircles, and quarter circles; and
(D) solve problems involving the lateral and
total surface area of a rectangular prism, rectangular pyramid, triangular
prism, and triangular pyramid by determining the area of the shape's
net.
(10) Expressions,
equations, and relationships. The student applies mathematical process
standards to use one-variable equations and inequalities to represent
situations. The student is expected to:
(A)
write one-variable, two-step equations and inequalities to represent
constraints or conditions within problems;
(B) represent solutions for one-variable,
two-step equations and inequalities on number lines; and
(C) write a corresponding real-world problem
given a one-variable, two-step equation or inequality.
(11) Expressions, equations, and
relationships. The student applies mathematical process standards to solve
one-variable equations and inequalities. The student is expected to:
(A) model and solve one-variable, two-step
equations and inequalities;
(B)
determine if the given value(s) make(s) one-variable, two-step equations and
inequalities true; and
(C) write
and solve equations using geometry concepts, including the sum of the angles in
a triangle, and angle relationships.
(12) Measurement and data. The student
applies mathematical process standards to use statistical representations to
analyze data. The student is expected to:
(A)
compare two groups of numeric data using comparative dot plots or box plots by
comparing their shapes, centers, and spreads;
(B) use data from a random sample to make
inferences about a population; and
(C) compare two populations based on data in
random samples from these populations, including informal comparative
inferences about differences between the two populations.
(13) Personal financial literacy. The student
applies mathematical process standards to develop an economic way of thinking
and problem solving useful in one's life as a knowledgeable consumer and
investor. The student is expected to:
(A)
calculate the sales tax for a given purchase and calculate income tax for
earned wages;
(B) identify the
components of a personal budget, including income; planned savings for college,
retirement, and emergencies; taxes; and fixed and variable expenses, and
calculate what percentage each category comprises of the total
budget;
(C) create and organize a
financial assets and liabilities record and construct a net worth
statement;
(D) use a family budget
estimator to determine the minimum household budget and average hourly wage
needed for a family to meet its basic needs in the student's city or another
large city nearby;
(E) calculate
and compare simple interest and compound interest earnings; and
(F) analyze and compare monetary incentives,
including sales, rebates, and coupons.
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