5/31 Histograms and Box Plots

1.  Warm-up:  If you have not done so already, convert your tennis court measurements into inches

Announcement: Survey data gathered by the end of the day tomorrow!


2.  Essential Question:  How long is the baseline of the tennis court?

• Input your data into the form in Google Classroom
• Examine the class data and record any initial observations you make
• Are there any measures that look very different from the others?  These extreme values are called outliers.
• Mini-lesson: How to construct a histogram
• Order data from least to greatest
• Decide on a bin width
• Put boxes around the data, in other words, organize the bins
• Graph the frequencies using a bar-graph method
• Create a histogram of the ruler data using the same bin width as the tape measure

What do you notice when you compare the histograms side by side?

Based on this data, what do you think is the actual length of the tennis court?

Homework:  Construct a box plot of ONE of the sets of data (ruler or tape measure).  You will need to find the range, median, first quartile, and third quartile. 

5/27 Lesson 8.1.1 Measurement Precision

1.  Warm-up:
The following is the list of temperatures recorded at 2:00 pm in Los Osos this month:

64, 68, 74, 65, 60, 62, 70, 65, 68, 65, 71

a)  What is the range of this set of data?
b)  What is the median of this set of data?

2.  Lesson 8.1.1 Measurement Precision

• Essential Question:  What is the length of the tennis court?
• We will use 2 different tools to try to answer this question: a 12-inch ruler, and a measuring tape.
• Discuss these questions in your team:
• Will you get the same measurement with each tool?
• Why might the measures be different?  Should they be the same?
• Which tool do you think will give the more precise measurement, that is the one that is closer to the true measurement of the tennis court?
• Partner up (within your teams)
• Field trip to the tennis courts- bring notebook and pencil for recording measurements

Have a great Memorial Day weekend!

5/26 Random Sampling

1.  Warm-up:  
The height (in inches) of the Golden State Warriors basketball players are listed below:

75, 80, 84, 75, 83, 75, 79, 80, 79, 82

Period 1: Find the median height of this set of data

Period 2: Find the mean (average) height of this set of data.


2.  Statistical Analysis Project

• Quick write:  Your team will be given a list of all 6th, 7th, and 8th graders at LOMS.  Using a random number generator, you will randomly select a sample to survey.  Will this produce a sample representative of the population?  Why or why not?
• By the end of class today:
• Statistical question and population checked off by Mr. Robinett
• Vocabulary completed
• Random Sample completed, with all members of the sample assigned to a member of your team
• Individually- quick write added to "Assignment Three journal entry"

3.  Lesson 8.2.2 Random Samples

• Take a sample of 10 robins (from the envelope)
• Copy the data into your notebook
• Put the sample of 10 robins back in the envelope
• Find the mean (average) of your data
• Input your mean into the form in Google Classroom

NEXT PROJECT DUE DATE:  All data collected and brought to class on Thursday, June 2nd

5/25 Lesson 8.2.2 Random Samples

1.  Warm-up:  
The height (in inches) of the Golden State Warriors basketball players are listed below.  Find the mean (average) height of this set of data.

75, 80, 84, 75, 83, 75, 79, 80, 79, 82

Extension:  The average height of an NBA player is 6 feet, 7 inches.  How do the Golden State Warriors compare?



2.  Statistical Analysis Project

• One person in your team makes a copy of the document (in Google Classroom) and shares editing rights to the rest of their teammates.
• Every teammate chooses a DIFFERENT text color.  Everything you type into this shared doc will be in your text color.
• Assignment One:  Vocabulary
• Discussion: What is a statistical question?
• Share out your questions
• Assignment Two:  Choose a statistical question in your teams
• Must get signed off by Mr. Robinett before continuing

3.  Lesson 8.2.2 Random Samples

5/23 Lesson 8.2.1 Conducting Surveys

1.  Announcements:

• Technology practice in grade book
• MDTP tomorrow in class. Eat breakfast!

2.  Lesson 8.2.1 Conducting Surveys

• Essential Question:  Who is going to be the next President of the US?  How could you conduct a survey to help you predict the winner of the election?
• Vocabulary Building:
• Population
• Sample
• Representative sample
• Convenience sample
• Voluntary response sample
• Cluster sample
• Today, your task is to critique a variety of surveys.  Do they produce a representative sample?  Why or why not?
• Problems 29 and 30 are discussions
• Problem 31- <<Glue resource page into notebook>>

3.  Statistical Analysis Project

• In-class, team project
• If you work hard and participate in class, very little will have to be done outside of class
• Last "test" grade of the year.  Do your best!
• Instructions, deadlines, etc. in Google Classroom
• Begin brainstorming the question your team will ask

Homework:  Bring a list of 3 possible questions your team might ask.  Be sure to include the population you will survey in your question.

5/13 & 5/16 Technology Days

1.  Warm-up: Cryptogram

• Cryptograms are secret codes that you need to decipher.  Each number is associated with a corresponding letter.
• Look for small words first (1 letter, 2 letters, 3 letters).  They are easier to guess
• Solve cryptograms in pencil!  It is necessary to guess on particular letters.  If you guess wrong, you need to be able to erase.

2.  Technology Practice (in Google Classroom)

• Open the document "Math 7 Technology Practice" in Google Classroom
• This is a list of practice activities and games you may choose from
• You DO NOT need to do activities in order.  You can pick and choose from the list
• Open the document "Tech Practice Proof of Completion" in Google Classroom
• This is where you take screenshots of your proof of completion.
• I prefer to use Snipping Tool (which is in "Accessories") to take screenshots
• You must complete 4 activities and screenshot the proof to receive full credit on this assignment.
• Note:  Correctly answering 6 questions on BuzzMath counts as completion.
• You must complete 1 activity from each section.

Announcement:  We resume SBAC testing on Tuesday.

5/11 SBAC Practice

Sit in teams with a whiteboard, marker and eraser.

Game Time!  SBAC Practice

• The goal of the game is to practice test taking strategies, revisit old concepts, and learn tips about the SBAC CAT.
• Your team earns one point for identifying what the question is asking you to do
• Your team earns one point for explaining what is known
• Your team may earn a bonus point for using a test taking strategy (elimination, guess and check, etc.)
• Your team earns two points for correctly solving the problem

5/9 SBAC Performance Task Prep

1.  Math SBAC Schedule and Q&A

2.  Week 1: Performance Task

• Classroom Activity
• PT Prep

Homework:  Finish Performance Task Prep: Donuts

5/6 3D Geometry

1.  Warm-up:  You have 3 minutes to play with the snap cubes.  After 3 minutes the snap cubes become tools, not toys!

2.  Intro to 3D Geometry with notes on front whiteboard

3.  Essential Question:  What is the cheapest way to package these candies?

• Dandy Candies video.
• Use snap cubes to help you answer the essential question

5/5 All about circles!

Grab a computer and take out headphones/earbuds

1.  Warm-up:  Copy the diagram (on side whiteboard) into the classwork section of your notebook

2.  Self-directed lesson:  All about circles!

Objective:  By the end of today's lesson, I will calculate the circumference and area of circles

First,

Watch these 3 videos and take notes:
Schmoop: Circumference and Perimeter
Virtual Nerd: How to find the Circumference of a Circle
Virtual Nerd: How to find the area of a circle


Then, Choose one/two of the following practice activities

Examples and Virtual Practice Problems:
Math Goodies: Circumference and Radius of a Circle
Math Goodies: Area of a Circle
On line math learning: Circles

BuzzMath
Circumference of a Circle
Intro to Area of Circles
Area of Circles

Worksheet (Calculator Okay, please show steps and work)


With 10 minutes left, you can choose to play one of these math games


Games
Rags to Riches on Circles
Challenging Area and Perimeter Game
Nyan Cat the Math Game: Circles
MathGames: Area Circumference Circle
PBS: dunk tank on Circles

Homework: Circumference and Area worksheet.  Answers in Google Classroom

5/3 More Angle Practice + Circle Vocabulary

1.  Warm-up: Measuring angles with protractor

2.  Return Tests

3.  Lesson:  More angle practice

• Angle song.
• Check-in: How's it going?
• Questions about estimating, measuring, or naming?
• Notes: Complementary, supplementary, and vertical angles.  Angle measurements of a triangle.
• Let's Practice!
• Angle practice packet
• Check your answers using Red Light, Green Light

4.  Brain Break!

5.  Story Time: Sir Cumference and the Dragon of Pi

6.  Lesson:  Circle Vocabulary

• Center
• Radius
• Diameter
• Circumference
• Chord