Algebra 1 Work as a group to complete the chart. Afterwards, we will cut and glue in your notebook. Words or phrases that mean add Words or phrases that mean subtract Words or phrases that mean multiply Words or phrases that mean divide Words that mean equal to Words or phrases that mean more than Words or phrases that mean less than

Algebra 1 Speaking a different language: how many ways can we read the expression?

Algebra 1 Expression – a mathematical phrase that includes operations, numbers, and/or variables. Parts of an expression: operations (add, subtract, multiply, or divide), terms (the parts being added), coefficients (numerical factor of a variable term), constants (a value that does not change), factors (values being multiplied together)

Algebra 1 Expression Re-write in addition Terms Coefficients Variables Constants Factors 2s+5v-9 2s + 5v + (-9) 2s , 5v , -9 2 , 5 S , v -9 2 and s 5 and v 5 – 7g – 2.5h 9m – 2n (d – 3)(e – 5)

Algebra 1 Class Practice: In your journal, write an expression for each situation. Skip 3 lines between each problem. The sum of a number and 6 The difference between 84 and a number Four times a number is increased by 8 times another number

Algebra 1 The sum of a number and 6 The difference between 84 and a number Four times a number is increased by 8 times another number Terms – Coefficients – Variables – Constants – Factors –

Algebra 1 TWEET! Label the parts of the expression then write it in word form. 2x + 13 Terms – Coefficients – Variables – Constants – Factors – Word Form –

Algebra 1 Team Time Worksheet

Algebra 1 Independent Work Worksheet

Algebra 1 As a group, complete the Look Activity. When your groups is done, leave it at your desk ready to discuss. Begin Copying notes in your journals

Algebra 1 Equation– a mathematical phrase that shows two values to be equal (must include an equal sign). Algebraic Equation – must include an equal sign and one or more operation and one or more variable. To represent multiplication in an algebraic expression/equation: Write number and variable right next to each other Use parentheses To represent division in an algebraic expression/equation: Use the fraction bar

Algebra 1 Writing an expression and what does it mean?

Algebra 1 Writing an expression and what does it mean? George is buying watermelons and pineapples to make a fruit salad. He buys w watermelons at $4.49 each and p pineapples at $5 each. Sandi buys 5 fewer packages of pencils than p packages of pens. Pencils cost $2.25 per packages and pens cost $3 per package.

Algebra 1 Writing an expression and what does it mean?

Algebra 1 Writing an expression and what does it mean?

Algebra 1 Solving Equations Goal: To get the ____________ alone on one side of the equal sign. Get common ___________ together Always move constants farthest away from the variable first. Always do the ______________ operation to cancel out and move to other side. What you do to one side, you have to do to the other because, “Life’s not _______, but _____________ is!” Examples:

Algebra 1 Practice

Algebra 1 Distributive Property The _______________ outside the parentheses must be distributed to each _______________ inside the parentheses. A(B +C) = A(B) + A(C) Examples:

Algebra 1 Simplifying Equations Combine terms with the ________________ variable. Examples:

Algebra 1 Solving rates and ratios: Set up ratio where units line up Cross multiply Divide Example: Pg. 32 (#5)

Algebra 1 If I am 5.5 ft. tall with a shadow of 8.25 ft, and my daughter who is 4.5 ft. stands next to me, what would the length of her shadow be?

Algebra 1

Algebra 1 TWEET!

Algebra 1 Class Practice Team Time Page 8 (#s 3-14) Page 17 (#s 1-8)

Algebra 1 Literal Equations are equations that contain two or more variables. When might you see and use literal equations? Examples?

Algebra 1 Solving Literal Equations These are formulas with multiple variables Rearrange the equation using the same rules just with variables instead of numbers Examples: Solving Inequalities Solved the same as equations except when multiplying or dividing by a negative then you flip the inequality the other direction

Algebra 1 Writing Inequalities:

Algebra 1 Solving Inequalities: Solve the same as though it were an equation, unless…. If you Multiply or divide by a negative, you have to flip the inequality

TWEET! Algebra 1 Solve for x: -3x – 18 > 3 2x + 7 < -4x + 31 XY = Z Q

Algebra 1 Class Practice Team Time Page 58 (#s 1-20) Page 65 (#s 1-20)