Write an algebraic expression for a real-world scenario: addition/subtraction

Write an algebraic expression for a real-world scenario: addition/subtraction

In this lesson you will learn to write a simple algebraic expression for a real world scenario by using an area model.

ADDITIONAL MATERIALS

STANDARDS

CCSS.6.EE.B.6 Use variables to represent numbers and write expressions when solving a real-world or mathematical problem; understand that a variable can represent an unknown number, or, depending on the purpose at hand, any number in a specified set.

TEKS.4.5.A represent multi-step problems involving the four operations with whole numbers using strip diagrams and equations with a letter standing for the unknown quantity;

TEKS.6.9.A write one-variable, one-step equations and inequalities to represent constraints or conditions within problems;

TEKS.6.5.A represent mathematical and real-world problems involving ratios and rates using scale factors, tables, graphs, and proportions;

IN.6.AF.3 Define and use multiple variables when writing expressions to represent real-world and other mathematical problems, and evaluate them for given values.

IN.5.AT.1 Solve real-world problems involving multiplication and division of whole numbers (e.g. by using equations to represent the problem). In division problems that involve a remainder, explain how the remainder affects the solution to the problem.

VA.PFA.5.19.c use an expression with a variable to represent a given verbal expression involving one operation; and

VA.PFA.5.19.b write an equation to represent a given mathematical relationship, using a variable;

VA.EO.A.1.a represent verbal quantitative situations algebraically; and

VA.CE.3.3.b create and solve single-step and multistep practical problems involving sums or differences of two whole numbers, each 9,999 or less.

FL.MAFS.6.EE.2.6 Use variables to represent numbers and write expressions when solving a real-world or mathematical problem; understand that a variable can represent an unknown number, or, depending on the purpose at hand, any number in a specified set.