Are there like terms I can combine? How can I rearrange it?

Slides:



Advertisements
Similar presentations
In Lessons and 4.1.3, you investigated connections between tile patterns, x → y tables, graphs, and rules (equations).  Today you will use your observations.
Advertisements

Lesson Concept: Multiple Representations Vocabulary: expression - an expression is a combination of individual terms (numbers) separated by operation.
2-9 Combining Like Terms Bell Work Evaluate each expression for y = 3.
Lesson Concept: Exploring Area 1 As you work today to explore the concept of area and how to measure it, keep the following questions in mind. They.
Lesson Concept: Square Units and Area of Rectangles
How can you see growth in the rule?
Lesson Concept: Relationship of Area and PerimeterArea 1 You now have learned a lot about area (the number of square units that are needed to cover.
Bell Work −3
1 In mathematics, there is often more than one way to express a value or an idea. For example, the statement, “Three out of ten students who are going.
Vocabulary: algebraic expression - A combination of numbers, variables, and operation symbols. equivalent expressions -Two expressions are equivalent if.
Lesson – Teacher Notes Standard: 7.EE.A.1 Apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with.
Lesson Concept: Histograms and Stem-and-Leaf Plots Vocabulary: (page 19 Toolkit) stem-and-leaf plot - Displaying data (by arranging the data with.
1 As you learned from enlarging the CPM Middle School mascot in Lesson 4.2.1, an image is enlarged correctly and keeps its shape when all measurements.
Lesson Concept: Portions as Percents 1 Vocabulary:  Portion -A part of something; a part of a whole.  Sampling - A subset (group) of a given population.
You have been looking at geometric patterns and ways in which those patterns can be represented with x→y tables, graphs, and equations. In Lesson 4.1.2,
In Chapter 4, you worked with writing and simplifying expressions. As you wrote expressions, you learned that it was helpful to simplify them by combining.
1-5 Simplifying Algebraic Expressions Do Now Evaluate each algebraic expression for y = y + y2. 7y 3. 10y – 4y4. 5y 2 + y
1 Variables are useful tools for representing unknown numbers. In some situations, a variable represents a specific number, such as the hop of a frog.
1 In this chapter, you have developed several different strategies for finding the areas of shapes. You have found the sums of the areas of multiple smaller.
In Chapter 4, you worked with writing and simplifying expressions. As you wrote expressions, you learned that it was helpful to simplify them by combining.
1 Vocabulary: Expression - An expression is a combination of individual terms separated by plus or minus signs. In this lesson you will continue to study.
 In Lesson 3.1.4, you worked with your team to find ways of comparing one representation of a portion to another.  Today you will continue to find new.
Warm Up Evaluate each expression for y = y + y 2. 7y
Today you will continue your work writing algebraic expressions using the Distributive Property.  You will label parts of an algebraic expression with.
How can we see the perimeter? How can we organize groups of things?
Lesson Concept: Dot Plots and Bar Graphs
How many parts should there be? What is the portion of the whole?
Lesson – Teacher Notes Standard:
A right triangle is a triangle with a right angle
Math Notes.
Lesson Concept: Histograms and Stem-and-Leaf Plots
Lesson Concept: Square Units and Area of Rectangles
Lesson Concept: Products, Factors, and Factor Pairs
How else can I represent the same portion?
What does this represent?
How can we represent this problem with a diagram?
Lesson Concept: Perimeter and Area Relationships
How can we tell which portions are the same amount?
Parallelogram - quadrilateral with two pairs of parallel sides
Lesson Concept: Exploring Area
Lesson Concept: Representing Comparisons
Lesson Concept: Relationship of Area and Perimeter
Bell Work.
Lesson Concept: Using Rectangles to Multiply
How can we explain our thinking? How can we describe any figure?
Bell Work The freshman class at Christian Brothers High School is having an election. Cara randomly asked 50 students whom they would vote for, and 30.
Equations with Variables on Both Sides
In mathematics, there is often more than one way to express a value or an idea.  For example, the statement, “Three out of ten students who are going on.
7th Grade Math Lesson
BELLWORK.
How can I express this situation efficiently?
Warm Up Evaluate each expression for y = y + y 2. 7y
Mathematics can be used to describe patterns. in the world
BELLWORK.
In Lesson 4.3.1, you used variables to name lengths that could not be precisely measured.  Using variables allows you to work with lengths that you do.
BELLWORK.
Lesson – Teacher Notes Standard:
Lesson – Teacher Notes Standard: Preparation for 7.EE.B.4a, b
Bell work:.
2-9 Combining Like Terms Bell Work Evaluate each expression for y = 3.
Lesson – Teacher Notes Standard:
Bell work Build the following expressions to find which is greater:
Do Now: Simplify the algebraic expression 16y6 + 4y4 – 13y
Warm-Up #9 (Tuesday, 9/22/15)
Simplifying Expressions
2-9 Combining Like Terms Bell Work Evaluate each expression for y = 3.
Objective: SWBAT simplify algebraic expressions by combining like terms.
Lesson – Teacher Notes Standard:
Lesson – Teacher Notes Standard:
Comparing Expressions Review
Presentation transcript:

Are there like terms I can combine? How can I rearrange it? equivalent expressions - Expressions that represent the same perimeter in different ways.  In Lesson 6.2.3, you looked at different ways the perimeter of algebra tiles can be written. You also created different expressions to describe the same perimeter.  Today, you will extend your work with writing and rewriting perimeters to more complex shapes.  You will rewrite expressions to determine whether two perimeter expressions are equivalent or different.  As you work today, keep these questions in mind: Are there like terms I can combine? How can I rearrange it? How can I see (visualize) it?

101. Explore each of these shapes 101. Explore each of these shapes. Look carefully at the lengths of the sides: ii. ii. iii. Sketch each figure on your paper and color-code the lengths that are the same.  Which figures have side lengths that are different than those you have measured before?  How are they different?    Label each length on your paper.  Discuss with your team how to label the lengths that are different than those you have measured before.  Explain your reasoning.  Find the perimeter of each figure.  Write the perimeter in simplest form by combining the like terms.

102. In any expression, the number that tells you how many of each variable or quantity you have is called a coefficient.  ( For example, 7 is the coefficient of 7x) For example, for the expression that describes the collection at right… the coefficient 3 shows that there are three x2-tiles the coefficient 4 shows that there are four x‑tiles the 6 is called the constant term because it is a term that does not contain variables and does not change no matter what the value of x is.

102 - Answer each question below for each of the perimeters you found in problem 101. What is the coefficient in the expression for the perimeter? How do you identify the coefficient of x in the shape? What is the constant in the expression? How do you identify the constant in the shape? : ii. ii. iii.

Color-code and label the sides .Write the perimeter in simplest form. 103. HOW MANY PERIMETERS? Erik cannot keep his hands off the algebra tiles!  He has made several different shapes, each one using the same tiles.  “Will every shape I create with these tiles have the same perimeter?” he wonders.  Help Erik investigate the question by making different shapes with your team.  Your shapes must follow these rules: Shapes must use exactly three tiles: a unit tile, an x-tile, and an x2-tile. Tiles must share a complete side.  An example of tiles that do, and do not, share complete sides are shown at right. Rearrange the tiles until each teammate has a shape that follows the rules and has a different perimeter.  Discuss why the perimeters are different.  Trace each shape, color-code the sides, and label their lengths.  Write an expression for the perimeter of each shape and simplify it by combining like terms.  Are other perimeters possible with the same pieces?  As you find others… Trace the shapes. Color-code and label the sides .Write the perimeter in simplest form. Be prepared to share your list of perimeters with the class.  Are there different shapes that have the same perimeter?  Why or why not?

105. LEARNING LOG In your Learning Log, describe what a “term” is in math.  Using algebra tiles, make up an example to explain how to combine like terms.  Why is it useful to combine like terms?  Title this entry “Combining Like Terms” and include today’s date.

Tonight’s homework is… 6.2.4 Review & Preview, problems # 106-110 Show all work and justify your answers for full credit.