Unit 6 · Standard 6.AT.6a
Write and Evaluate Algebraic Expressions
My Notes Level 1 Support Level 2 Standard Level 3 Enrichment
Today's objectives
Content Objective: I can write an algebraic expression for a real situation and evaluate it for a given value of the variable.
Language Objective: I can explain my expression using the words variable, term, coefficient, constant, substitute, and evaluate.
📖 See Learn It for the explanation and worked examples, and the Vocab tab for the words. These are your notes to fill in and keep.
✏️ Fill in each blank as we go. Use the Word Bank to help you.
👆 Tap any word to see its meaning and a picture.
Level 3: try the blanks from memory first, then check the bank.
- 1A letter that stands for an unknown number is a .
- 2A math phrase with variables, numbers, and operations but no equal sign is an .
- 3The number multiplied by a variable, like the 7 in 7n, is the .
- 4A term that is just a number and never changes, like the 5 in 3x + 5, is a .
- 5Terms with the same variable part are .
- 6Replace the variable with a given number before you the expression.
- 7To put numbers in for the letters and work out the value is to .
Write About the Math
Write an expression for the total cost. What does each part of the expression represent?Escribe una expresión para el costo total. ¿Qué representa cada parte de la expresión?
Say your answer to a partner first. Then write it, using at least two of these words:
Model: Key words name the operation, and 'less than' reverses the order. — A strong answer matches key words to operations (sum/more than = add, less than = subtract, product = multiply) and explains '12 less than g' starts with g, giving g − 12.
Start
Complete the frames. Use the word bank.Completa las oraciones. Usa el banco de palabras.
- The total cost is ___ + ___h. The ___ represents the ___ and ___h represents the ___.
- My answer is ___ because ___.Mi respuesta es ___ porque ___.
Build
Write two connected sentences. Use because, so, or but.Escribe dos oraciones conectadas. Usa porque, entonces o pero.
- My claim is ___.Mi afirmación es ___.
- My evidence is ___, so ___.Mi evidencia es ___, entonces ___.
Explain
Write a claim, give math evidence, and explain your reasoning.Escribe una afirmación, da evidencia matemática y explica tu razonamiento.