Casio FX-991EX CLASSWIZ

The fx-991EX “ClassWiz” features a high-resolution display, making it easier to view formulas and symbols. This remarkable screen can display between 2-6 times as many characters as other scientific calculators, yet still runs on solar power.

Description

fx-991EX

The New Classroom Standard
With High-resolution LCD Technology

Ideal non-programmable scientific calculator for technology integrated teaching and learning based on the Philippines Ｋ-12 curriculum for Lower / Upper Secondary schools and University.
fx-991EX can assist teaching and learning of SHS core subjects as well as SHS academic tracks, especially STEM strand, ABM strand and HUMMS strand.

Presentation

Introduces the excellent features of the new ClassWiz
Function

Introduces high-performance functions effective for advanced mathematics

Features

1 Easy and Intuitive operability

Intuitive and interactive operation makes it easy to use the features of ClassWiz.
By the use of icons, selection of the desired function is quick and easy.

Visual, interactive and textbook-based displays make operation easier for teaching the use of scientific calculators, so you can concentrate on teaching mathematics.

ClassWiz Series
ES PLUS Series

Interactive format

Interactive menu display realizes more intuitive operation.

Natural Textbook Display Models

Input and display fractions, powers, logarithms, roots, and other mathematical formulas and symbols just as they appear in textbooks.

ClassWiz Series
MS Series

Example

Solve the simultaneous equations.
{ x + 2y = 32x +3y = 4
The solution is
x = -1
y = 2

ClassWiz Series

Icon display
Select equation
Input coefficient
Solution

MS Series

Icon display
Select equation
Input coefficient
Solution

2 Essential functions for learning all in one

A wide range of essential functions are effective for education and available to support student’s learning.

Spreadsheet

Useful for learning statistics.
Up to 5 columns x 45 rows
(maximum of 170 data items)

1Essential functions

Even advanced mathematical calculations are simple to perform and functions that take advantage of previous unavailable display capabilities are now possible.

Spreadsheet calculations

Statistics

The spreadsheet function can be used for studying statistics which has become important in mathematics classes.

Example: Student’s height data comparison chart

Statistical calculation such as the mean of the data is executed

Recursion

In addition, the spreadsheet function makes it possible to enter recursive formulas.

Sequence: a₁=2 and a_n+1 -2a_n-3 (n=1, 2, 3 …)

a₁-2, a₂=1, a₃=-1, a₄=-5, a₅=-13

Riemann Integral

Calculation using advanced Riemann functions is also possible.

The spreadsheet function makes it easy to use real-world data even in the classroom, enabling students to effectively study statistical processing.

2Variety of functions available to support student’s learning.

From basic level to advanced math level for secondary and tertiary education.

Fractions and rational numbers
Equation
Matrix
Integration

Example

Solve the matrix calculation.

ClassWiz Series

Able to enter Matrix just as textbook form
Able to have the answer in 1 display as textbook form

MS series

Need 4 displays to enter numbers in Matrix A
Need 4 displays to enter numbers in Matrix B
Need 4 displays to check the final answer

3 Simple and quick calculations

Simple key strokes and visualized formulas make calculations faster.
Fast calculation for smooth performance in class or during examinations.

Example

Calculate the mean height of 5 students.

< Students’ height >
176cm, 180cm, 173cm, 180cm, 175cm

ClassWiz series 2 steps

Fewer keystrokes and faster !!
Standard variation, variance, mean, sum all in one display!
No more jotting down each solution on paper, ClassWiz will save your time.

ES PLUS Series 6 steps

4 Extensive and advanced service using QR Code

Generate QR Codes of equations input into the calculator by a simple operation.
Graphs and other information can be displayed on smartphone or tablet screens.

Advanced mathematical capabilities make teaching mathematics more extensive and advanced.

1Visualization with graphs

STEP 1

Input formula

STEP 2

Table

STEP 3

QR Code

STEP 4

Display Graph

Makes formulas visually understandable

2Online Sharing

Online sharing system assists active learning in your classroom.
If you use the QR Code Function, you can share students’ results.
It will be a great help for group-work lessons.