2. REVISION DE LITERATURA
2.4 Manejo de los Nematodos
10 m 12 m
16 m
Lesson 1.15; How much will it cost to paint the hall floor?
Composite Area Practice
1.
Lesson 1.15; How much will it cost to paint the hall floor?
3.
Lesson 1.16; Pre-Assessment Practice
Learning Goal 1: I can solve problems involving area and perimeter of simple and composite figures (MG)
Learning Goal 3: I can solve problems with Pythagorean Theorem (MG) Determine the area and perimeter of the figure on the right.
Area = ___________m 2 Perimeter = _____________ m
Learning Goal 2: I can square and square root constants/variables and can use them to simplify expressions & solve equations (NA)
What value of x will make the following equation true?
√16 + 𝑥2
= 13
Learning Goal 4: I can interpolate and extrapolate values in scatter plots with lines of best fit. (LR) The scatter plot shows the Price of Diamonds plotted according to their Size (in carats).
a) Does this relationship appear to be linear or non-linear? Explain.
b) Draw a line of best fit. (Regardless of your answer to a))
c) What is the likely price of a 2.25 carat diamond?
d) Is this an interpolation or extrapolation? Explain.
35 cm 35 cm 47 cm x cm 10 cm 10 cm
Lesson 1.16; Pre-Assessment Practice
Learning Goal 5: I can determine values in a linear pattern/relation (LR)
a) Examine the pattern. Draw the next figure and complete the clear rows of the table. Figure # # of Squares
In the middle row
Total # of Squares in the Figure 1 1 1 2 3 3 13 4 25 5 43 100
d) Use the formula (and patterning) to fill in the two shaded rows of the table.
Learning Goal 6: I can solve ratio problems using equivalent ratios or cross multiplication. (NA) Wal-mart sells a case of 24 cans of Diet Coke for $6.88. Giant Tiger sells a 18 pack of Diet Coke for $5.49. Which is the best buy?
Learning Goal 7: I can determine and describe the properties and relationships of the interior angles of polygons. (MG)
Learning Goal 8: I can determine and describe the properties and relationships of the exterior angles in polygons (MG) Determine the value of the missing values.
a) b) c)
b) Which column represents linear growth? Explain. c) Give a formula for the linear column in the table.
75o
xo
Regular Polygon (15 sides)
Lesson 1.17; What is Your Rate?
Learning Goal 9: I can solve proportional problems by finding unit rates. (NA)
What value is better?
Now try this. (Recall 1 kg = 1000 g)
Example 1. Circle the better value based on the unit prices. Show both unit rates.
a) $25.00 for concert tickets for 2 people or $36.00 for tickets for 3 people.
b) $4.25 for 4 L of milk or $2.55 for 2 L of milk.
c) 35 g of mixed nuts for $0.99 or 50 g of mixed nuts for $1.49.
Lesson 1.17; What is Your Rate?
What’s your Rate? Try any 5 of the following. Or ALL if you have time.
1.How many texts can you send per minute?
Time: 3 minutes # texts:___________ Rate:____________
2.How many baskets can you make per minute?
Time: 30 s (0.5 min) #baskets: _________ Rate:____________
3.What is your heart rate?
Time: 15 secs (0.25min) # beats: ___________ Rate:____________
4.What is your alphabet reciting rate?
Time: 2 min # complete alphabets ________ Rate: ____________
5. How many Jumping jacks can you do?
Time: 45 s (0.75 min) #full jumping jacks________ Rate: ____________
6. How many times can you hit “=” on a calculator?
Enter +1 on a calc., then on GO, hit “=” until STOP
Time: 12 s (0.2 min) Total on screen ____________ Rate: ___________
7. What is your stair climbing rate?
Time: 40 s, (0.667min) Total stairs__________ Rate: __________
Example 2. Find the unit rate for each situation. Remember units. [10]
a) driving 180 km in 3 hours ________________ b) 54 hot dogs for 18 people ________________ c) 160 words typed in 4 minutes ________________ d) $27.40 for 4 hours of work ________________ e) $12.66 for 8 packages of juice boxes ________________ f) $284 for a 4 day car rental ________________ g) 560 heartbeats in 6.5 minutes ________________ h) jogging 3.5 km in 30 minutes ________________ i) a convenience store has 15 customers in 20 minutes ________________ j) the temperature changes by -16ºC in 4 hours ________________
Lesson 1.18: Is Lego Gender Biased?
Part A: Learning Goal #9 I can solve proportional problems by finding unit rates.
List 3 or 4 factors that would determine the price of a Lego kit.
Should gender be one of the factors? Predict which costs more?
STAR WARS SAME DISNEY
Procedure: 1. Use the slides to complete the first 6 rows of each table.
2. Then visit the “LegoShop” website, and select 3 other kits, from each line of kits and add them to each table.
Does there appear to be a gender bias in their pricing? Explain.
How much should the Lego Disney “Disney Castle” cost? Justify.
How much should the Lego StarWars “Millennium Falcon” cost? Justify.
Pieces Cost Cost/Piece
Set
Average cost/piece: ________
Pieces Cost Cost/Piece
Set
Lesson 1.18: Is Lego Gender Biased?
Part B: Learning Goal 11: I can conduct experiments to establish relationships and test hypotheses. (LR)
a) Predict the trend in the relationships between The Number of Pieces and the Price:
(positive/negative, strong/weak, Linear/nonlinear)
b) Predict how the two scatter plots will compare. (STARWARS to DISNEY,…higher/lower, steeper/less steep, stronger, weaker,…)
Analysis: Graph the data below. Use • for the Star Wars points, use X for the Disney
1.Comment on your first prediction. 2.Comment on your second Prediction.
Part C: Recreate this scatter plot in Google Sheets if time permits.
(Sketch a possible scatter plot below)
Use • for the Star Wars points, use X for the Disney
# Pieces Cost
Lesson 1.19: First Differences, Determining Linear vs. Non-Linear?
Learning Goal 10: I can determine a relationship as linear (direct or partial), or non linear. (LR)
Example 1: Blocks in a “+” Shape.
a)Build the first 6 figures in this set. b)Fill the table. Draw the graph.
c) Subtract each value from, the term below. These are called the first differences.
d)Describe the graph (Linear or Non-Linear). _____________________
e)Describe the first differences.
Example 2: Perimeter of Growing Squares a) Build the first 6 figures in this set.
b) Fill the table. Draw the graph.
c) Subtract each value from, the term below.
d) Describe the graph Linear or Non-Linear. _______ e) Describe the first differences.
“+” Shape
Level # Blocks First Differences 1 2 3 4 5 6
Growing Squares
Level Perimeter
FirstDifferences 1 2 3 4 5 6 Level Number Total Blocks Level Number Total Perimeter
Lesson 1.19: First Differences, Determining Linear vs. Non-Linear?
Example 3: Area of Growing Squares a) Use the squares from Ex 2. b) Fill the table. Draw the graph. c) Calculate the first differences.
d) Describe the graph Linear or Non-Linear. _______ c) Describe the first differences.
Example 4: Complete each table and determine if the relationship is linear or non-linear.
a) b) c)
Example 5: Which pattern is linear, Example 6: Make the relationship…
# of shaded squares or # of blank squares? a) Linear b) Non-linear