Friday, September 18 th 2015 1.Come in quietly 2.Binders out, pencil and open to your Do Now, and planner 3.Be quiet and in your seat before bell rings.

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Presentation transcript:

Friday, September 18 th Come in quietly 2.Binders out, pencil and open to your Do Now, and planner 3.Be quiet and in your seat before bell rings 4. Make sure you picked up todays assignments and hand outs from by the door

Do Now and Homework Do Now What types of graphs are there? Name all of the graphs you know of….. Homework No Homework Enjoy your weekend

What You Need to Know: There are several ways data can be represented visually in graphs or charts: PIE CHART: Used to show percentages or parts of a whole. For example, representing the various music tastes of your class population or the number of students that play different sports in your school.

What You Need to Know: LINE GRAPH: Used to show how numerical data changes over time. You would use a line graph to represent how many inches you’ve grown each year since you were born or how many books you read each month. Double line graphs compare sets of data over the same period and use different colors or line styles to show the data.

What You Need to Know BAR GRAPH: Used to compare the measurement or frequency of several different categories. For example, you could use a bar graph to show the snack preferences of students and the amount of each snack eaten in the school cafeteria.

What You Need to Know DOUBLE BAR GRAPH: Used to show comparison between sets of data. You could use a double bar graph to compare music preferences of students in two different classes.

What You Need to Know: Each type of chart requires: -A TITLE that should explain what you are showing in the graph -LABELS to identify the data used, whether it’s the X and Y axes, the bars on a graph, or a pie chart. Your labels should show what you are comparing. If you are constructing a line or bar graph, be sure to label the graph with the appropriate numbers and in the right increments. If your data only goes to 20, you wouldn’t make your graph go to 100, and you might divide the graph into increments of 2. -A LEGEND or KEY showing what the data means -A DATA TABLE that shows the data that is used to construct the chart or graph. Ready to practice? Let’s go!

What You Do…. For each of the following….. Gather any data required and/or graph your data Title and label your graph (X/Y axes, data, graph increment) and create a key Answer any questions that follow each group

How Did YOU Do? You should have surveyed the students in your class to obtain their dessert preferences. Make a bar graph. What title should we give this graph? Title:__________________________________________

How Did YOU Do? Based on your results, what did you answer for the following questions? a. What is the most common preference of dessert among the students of your class? b. What is the least liked dessert preference? c. If the cafeteria sold out of the number one choice, what would be the best second choice for them to offer in order to increase their dessert sales

Let’s Answer Some Questions..

Let’s Answer Some Questions… How Did YOU Do? Answer the questions about the pie chart below. a. According to the graph, which species is the most abundant on Earth? INSECTS b. What percentage of the graph includes human beings? ALL OTHER ANIMALS – 18% c. How does the percentage of Protists compare to the percentage of Plants with respect to diversity? PLANTS = 16% PROTISTS = 4% PROTISTS ARE 1/4 TH OR 25% OF THE NUMBER OF PLANT SPECIES

Let’s Make a Graph….

How Did YOU Do? Make a line graph for the following information. a. According to the graph, what is the approximate heart rate at 17 minutes? 140 beats per minute b. When is the heart rate at its peak? 148 beats per minute c. Using the results from the graph, describe what happens to heart rate before, during and after exercise. Heart rate gradually increases as the body begins exercise, peaks during intense exercise, and then gradually decreases as the exercise period ends.

Let’s Answer Some Questions…

How Did YOU Do? Answer the questions about the pie charts below. a. What is the most common hair color? Brown hair b. Rank eye color from most common to least common eye color. 1-Brown, 2-Blue, 3-Green, 4-Hazel, 5-Gray c. What is the most likely eye and hair color combination you might find in the human population? Brown Eyes and Brown Hair d. What is the least likely eye and hair color combination you might find in the human population? Gray eyes and red hair

Let’s Make a Graph

How Did YOU Do? Make a double line graph comparing the following:

Let’s Answer Some Questions

How Did YOU Do? a. Explain what happened to the chipmunk population from The chipmunk population rapidly increased from Then, the population decreased gradually until it began to increase again from b. Explain what happened to the hawk population from The hawk population gradually increased until 2006 when it peaked and then gradually decreased until 2010, when it leveled out. c. Using the data from the graph to explain your answer, why do you think the populations changed as they did during that time period? As the chipmunk population increased, the hawk population had more food to eat, so their populations increased as well. Once the hawk populations increased, they preyed upon the abundance of chipmunks, causing the chipmunk population to gradually decline. As the chipmunk population declined, the hawks had less food, which caused their population to decline as well.

How Did YOU Do? d. Predict what this graph will look like over the next five years ( )? The chipmunk population will continue to increase, providing more food for the hawks, which will in turn increase in population. As the hawk population increases, they will prey upon more chipmunks, causing their population to decline again. Predator-prey graphs like this are usually cyclical and reach a point where they level off and reach carrying capacity.