patterns and functions looking for and analyzing patterns functions geometric growing patterns 1
TRANSCRIPT
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Patterns and Functions
• Looking for and Analyzing Patterns• Functions
Geometric Growing Patterns
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Geometric Growing Patterns
Step1 Step 2 Step 3
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Geometric Growing Patterns
Step1 Step 2 Step 3
How many squares would there be in step 12? In step 20? Can you write an equation to represent the growing pattern?
Step # squares
1
2
3
4
5
Turn over your
paper and
Graph it!
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Growing Patterns
Step1 Step 2 Step 3
How many squares would there be in step 10? In step 20? Can you write an equation to represent the growing pattern?
Step # squares
1
2
3
4
5
Turn over your
paper and
Graph it!
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Patterns and Functions
• Looking for and Analyzing Patterns• Functions
Geometric Growing PatternsContexts with Growing PatternsInput-Output FunctionsRead pp. 244-245
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Border TilesIn light of what we learned yesterday about
variables and our learning so far today, let’s revisit the Border Tiles problem.
Choose a variable and write an expression to represent the number of tiles needed for any size square pool. (I used p = length of the side of a square pool)
• (p+2) + (p+2) + p + p• 2 (p + 2) + (2p)• 4(p + 1)• (p +2)2 – p2
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Patterns and Functions
• Looking for and Analyzing Patterns• Functions
Geometric Growing PatternsContexts with Growing PatternsInput-Output FunctionsRecursive Patterns and FormulasExplicit FormulasRead page 246
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Dot Pattern Problem
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Strings of Pattern Blocks
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Linear Functions
and Reflect!
At this point, we have considered many functions: border tiles, dot pattern, and strings of pattern blocks, geometric growing patterns, just to mention a few.
• Which are linear functions?• Which are not linear? • Are they still functions?
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Linear Functions
• Rate of Change and Slope• Zero Slope and No Slope• Proportional and Non-proportional
Situations• Read pages 248-249
Identify at least one proportional situation and at least one non-proportional situation we have graphed today.
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Linear Functions
• Rate of Change and Slope• Zero Slope and No Slope• Proportional and Non-proportional
Situations• Parallel, Same, and Perpendicular Lines• Graphs• Read page 250
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Graphs and Context-Match the Graphs
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Connecting Representations
The Hot Dog Problem:
Brian is trying to make money by selling hot dogs from a cart at the stadium during music performances and ball games. He pays $35 per night for the use of the cart. He sells hot dogs for $1.25 each. His costs for the hotdogs, condiments, napkins, and other paper products are on average $ 0.60 per hot dog. The profit from a single hot dog is, therefore, $ 0.65.
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Connecting Representations
• Context• Table• Verbal Description• Symbols• Graph
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Function Language(page 255)
• Independent and Dependent Variables
• Discrete and Continuous Functions
• Domain and Range