Download EDTL Tech Presentation 2

Lesser Known
Functions
By: Morgan
Hamilton, Rachel
Hack, and Steve
Siuda
4 Categories- MATH, NUM,
CPX, and PRB
Overall Themes


Tool for executing previously learned material,
NOT in place of learning
The below functions in our menus were found
in the Math Standards:
5th grade- Fractions and Decimals
 6th grade- lcm and gcd
 8th grade- working with radicals and integer
exponents
 High School- Rectangular and Polar Forms,
Conjugates (Geometry), Probability and
Statistics
 Advanced courses- Derivatives and Integration

Group Exercise:
Use your calculator to generate two
random integers between 1 and 200, being
A and B.
The GCD between A and B = C.
The LCM between A and B = D.
Find D to the C power.
Find C raised to 1/D, then change the
decimal to a fraction.
Statistics on our Calculators
Step 1: Calculate your own height in inches.
Step 2: Compile a class list of height’s.
Step 3: Calculate average, standard deviation, etc.
Step 4: Represent data in graphs.
Standard Met Through this Exercise:
• Use statistics appropriate to the shape of the data
distribution to compare center (median, mean) and
spread (interquartile range, standard deviation) of two
or more different data sets.
Texas Instruments VS Casio
TI 84 Plus
Casio FX- 9860G11
-Monopoly in US Schools
(Teacher demonstrations)
-Less popular
(No Modeling in
classrooms)
-More expensive ~$120
-More timely to graph
functions
-Cheaper ~$80
-Faster graphing abilities
-Text Interface
- Greater Learning Curve
- No backlighting
-Visual interface
- Smaller learning curve
- Backlighting
CASIO
MAIN MENU
Class Discussion
 Your
experience with teachers modeling
the TI calculators. Any with Casio?
 Who remembers how to use your
calculator beyond simple functions?
 Would a visual interface help in
classrooms?
 Reasoning- First impressions of TI website?
 Are you surprised? What’s your take?