Practice spelling and statistical basics at the same time!

Spelling Counts!

Students count letters, tally, and identify mode, median and range. During Review lessons we looked at words by position over the 5 lists in each section. Unit one, word one, Unit two, word one, Unit three, word one and so on. This allowed us to look at the data collected in more than one setting. (setting one in a group of 20; setting 2 in a group of 5) Both settings have inherent difficulties as the first is an even number, and the second a small sample). This led to interesting discussions. =)  

Eventually, I hope to develop a card game for students which will give them the mode, median, and range, and they will identify the short list of words that match the characteristics!

 

Weekly  
1, Students write down the words in the spelling list and number of letters in each word.  
2. As students write their wordlist they can set up the tally area. As they encounter a new number add it to tally possibilities.  
First accuracy checkpoint. Does the number of tallies and the number of spelling words match? Which number has the most marks? That is the mode for this list. In my example, words with 5 letters have the most datapoints so, Mode = 5  
   
Using the tallies, prepare a least to greatest list. If there are 3 tallies for 4 letter words, 5 tallies for 5 letter words, 3 for 6 letter words, 2 eight letter words. Your list would look like the one below.  
4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 8. 8 Begin crossing the numbers off each end of the list. The number in the middle of the list is 5. So
 
5 is the median of this set of numbers. The greatest number of letters is 8. The least number of letters is 4. To find the range subtract the  
the 4 from 8. The range of this set of numbers is 4.  
   
Review Lesson: Look at the data collected in a different way. (By word position across several Units)  

 

 

   
5th grade TEKS embedded in activity
     
Math 5.13B Describe characteristics of data presented in tables and graphs including the shape and spread of the data and the middle number.
 

5.14A

Identify the mathematics in everyday situations. .

     
Science 5.2B

The student uses scientific methods during field and laboratory investigations: collect information by observing and measuring;

     
Language Arts 5.17C The student spells proficiently Use resources to find correct spellings

 

This page was developed through GirlTECH '97, a teacher training and student technology council program sponsored by the Center for Research on Parallel Computation (CRPC), a National Science Foundation-funded Science and Technology Center. Thanks also to the RGK Foundation for its generous support

Updated October 4, 2005 Jo Leland

Comments to jo.leland@humble.k12.tx.us

http://teachertech.rice.edu/Participants/joleland