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Welcome to Ch 1!

On the first day of class (1/25), we will start with Ch 1.

Math is a hands-on subject. To learn math, we need to practice while we learn!

Here is what you need to do:

— Watch the videos listed below and follow the instructions in the videos to do your lab work problems (lab work problems are math exercises related to the materials covered in the videos). You might not be sure about certain details but it’s OK as you can ask questions during the class meeting.  Just make sure you at least “attempt” as much as you could on the lab work problems before you come to class.

— Attend the 1st class meeting to participate in class discussion about the lab work problems. Ask your questions!

— After class, fix the errors, if any, of your lab work problems and then submit your lab work to Canvas by the due date.

 

Here are the detailed Instructions:

 

• The videos listed below explain the concepts and also show you how to do the lab work:

Ch 1 (categorical variables)

Ch 1 (quantitative variables)

 

• Here are the lab work problems due on the first day of class (1/25):
  • • Ch 1—#1.1 (identify individuals and variables)
    • Ch 1—#1.2 (categorical and quantitative variables)
    • Ch 1—#1.4 (bar graph) (see my comments below regarding #1.4a)
    • Ch 1—#1.6 (histogram)
    • problem not in book (dotplot)
      

The first video demonstrates lab work #1.1, #1.2 and #1.4; the second video #1.6 and the dotplot problem.

 

• Notice that #1.1 and #1.4 are different — #1.1 shows you the entire data set while #1.4 shows you a summary because the question says “The survey reports the following data on the sources …..” For #1.4, the individuals are NOT family sources.

 

• For #1.4a), to receive full credits, you need to specifically say whether the percentages add up to (or exceed or below) 100%. Just one sentence will do.  Here is the format to follow:

“It is incorrect to use a pie chart of these data because

               the percentages of students  (add up / do NOT add up)  to 100%.”

 

• In case you are waiting for your textbook, here is Ch 1 from your textbook.   Please note that due to copyright issues, at most, we can post only Ch 1 and 2 — so you need to purchase your textbook or have access to the textbook!!!
  

MA 101 Ch1 revised

 

• Make sure you follow the format shown in the videos as that is how your grader grades your lab work.

 

• No need to type your lab work:

• • Write out your lab work on paper by hand (you can also write it on your tablet if you wish).

• • Scan all your pages as one single PDF file.

• • Upload your one single PDF file to Canvas by the due date.
    • Your one-single PDF should have all five lab work problems.

• • After uploading your one single PDF into Canvas, if you realize that you have made mistakes and want to revise your homework, you can upload another PDF into Canvas before the due date. Canvas will keep track of all your submissions and display your latest submission to the grader. In other words, you can submit as many times as you want before the due date!

• • Your homework will NOT be accepted if it is NOT a single PDF file.

• • The library has machines that you can scan for free.

 

• Here is how your grader grades your lab work:

https://www.course.cafe/math/lesson/grading-scheme-for-lab-work-problems/

 

• Lab work is typically straightforward as this is the first round of learning. The multiple-choice homework questions that you will do next week will be more challenging than the lab work.

• If you have questions regarding lab work, come to the class meeting and ask!

-END-

 

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