Created By: Marilyn Cimino, Dr.Howard Elementary School (Champaign, IL)
Grade Level: 4th
Content Area: Mathematics
Database Integration: For this
project students will use the TDC
database to access information about various types of pottery
used around the world.
Calculators play an increasingly vital role in learning at school as well as in our society. For many years, calculators have played an oftencontroversial role in the classroom. During my career I have been instructed to teach students how to use a calculator, as well as being instructed to not allow students to use calculators in class. Presently, 4th grade students do not use calculators in the math portion of the standard achievement test, but it is my job to introduce the calculator in preparation for standardized testing in 5th grade. As inexpensive as calculators are today, I am amazed at how many students neither own nor understand the functions on a simple calculator.
This lesson plan was designed to integrate technology with the multiple math patterns of 1 and 0. This lesson can also be used as a mnemonic device application that is memorization of facts being taught through a memoryassisted system. Another important component of this lesson is to stimulate interest in math through active learning. Students enjoy selfcorrecting their instructional activities using calculators. Exploring the multiple uses of a simple calculator enhances divergent thinking and creativity.
This is and FUN and EXCITING lesson for all students!
A day before this assignment is given, introduce the functions of a calculator using the special calculator for use on the overhead. Let students become familiar with the signs and abbreviations.
This assignment can be given to those students that are capable of reading and following directions independently. For atrisk and lowability students I suggest that the third master be done in small groups.
Name _____________________________ 
Technology
Master


Using a Calculator to Explore Special Quotients 

Use
the ~cons~ key to complete the multiples of 1 and 0.


Multiples of 1 
Multiples of 0 

PRESS: 
DISPLAY: 
PRESS: 
DISPLAY: 
x 1 ~cons~  ~cons~ x 1  x 0 ~cons~  ~cons~ x 0 
0 ~cons~  0  0 x 0 ~cons~  0 
1 ~cons~  1  0 x 1 ~cons~  0 
2 ~cons~  2  0 x 2 ~cons~  0 
___ ~cons~  ___  0 x _ ~cons~  ___ 
___ ~cons~  ___  0 x _ ~cons~  ___ 
___~cons~  ___  0 x _ ~cons~  ___ 
___ ~cons~  ___  0 x _ ~cons~  ___ 
What is the pattern for multiplying
a number by 1?
________________________________________________________
What is the pattern for multiplying a number by 0?
________________________________________________________
Now, try x 7 ~cons~ and write the pattern below.
________________________________________________________
Next, try x 10 ~cons~ and write
the pattern below.
________________________________________________________
Go over the answers together using the overhead and have student selfcorrect. Discuss why patterns were found and why.