Neft Teacher · Vocab Explorer

Unit 6 · Standard 6.AT.6a

🔑 Write and Evaluate Algebraic Expressions — Vocab Explorer

Lesson 6-5 · Learn the words, then practice them

① Word Wall

Look at the picture, read the meaning, and tap 🔊 to hear each word.

Illustration of Write Algebraic Expressions: Translate words or a situation into numbers, variables, and operation symbols.
Write Algebraic Expressions

ES Escribir expresiones algebraicas

Translate words or a situation into numbers, variables, and operation symbols.

Traducir palabras o una situación a números, variables y símbolos de operaciones.

Illustration of Variable: A letter that stands for a number that is unknown or can change.
Variable

ES Variable

A letter that stands for a number that is unknown or can change.

Una letra que representa un número desconocido o que puede cambiar.

Illustration of Algebraic Expression: A math phrase that has at least one letter.
Algebraic Expression

ES Expresión algebraica

A math phrase that has at least one letter.

Una frase matemática que tiene al menos una letra.

Illustration of Coefficient: The number in front of a letter, like the 3 in 3x.
Coefficient

ES Coeficiente

The number in front of a letter, like the 3 in 3x.

El número frente a una letra, como el 3 en 3x.

Illustration of Constant: A fixed number in an expression or equation that does not change.
Constant

ES Constante

A fixed number in an expression or equation that does not change.

Un número fijo en una expresión o ecuación que no cambia.

Illustration of Like terms: Terms with the same letter raised to the same power, like 2x and 5x.
Like terms

ES Términos semejantes

Terms with the same letter raised to the same power, like 2x and 5x.

Términos con la misma letra elevada a la misma potencia, como 2x y 5x.

Illustration of Substitute: To replace a variable with a given number before working out the value.
Substitute

ES Sustituir

To replace a variable with a given number before working out the value.

Reemplazar una variable por un número dado antes de calcular el valor.

Illustration of Evaluate: To find what an expression is worth once every variable has a number, following the order of operations.
Evaluate

ES Evaluar

To find what an expression is worth once every variable has a number, following the order of operations.

Hallar cuánto vale una expresión una vez que cada variable tiene un número, siguiendo el orden de las operaciones.

Illustration of Term: One part of an expression, separated from the others by + or −.
Term

ES Término

One part of an expression, separated from the others by + or −.

Una parte de una expresión, separada de las demás por + o −.

② Match it

Tap a word, then tap its meaning.

③ Fill in the blank

Use the word bank to finish each sentence.

Word bank
Write Algebraic ExpressionsVariableAlgebraic ExpressionCoefficientConstantLike termsSubstituteEvaluateTerm
  1. 1Turn the words into numbers, operations and a .
  2. 2A letter that stands for an unknown number is a .
  3. 3A math phrase with variables, numbers, and operations but no equal sign is an .
  4. 4The number multiplied by a variable, like the 7 in 7n, is the .
  5. 5A term that is just a number and never changes, like the 5 in 3x + 5, is a .
  6. 6Terms with the same variable part are .
  7. 7Replace the variable with a given number before you the expression.
  8. 8To put numbers in for the letters and work out the value is to .
  9. 9Each part of an expression joined by + or − is a .

④ Use it in a sentence

Pick one word and finish the sentence in your own words.

A is .