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Tool: Online Grapher Review
Teacher Review (Not based on classroom experience)
Reviewer: colodude, Jan 12 2011 01:26:19:983AM
Review based on:
personal experience
Appropriate for:
introduction to a concept, practice of skills and understandings, applications of a concept or technique, advanced investigations
Other Comments:
The interface is clean and reliable. I had no problem quickly plotting three functions and finding intersections. I like the ZOOM in via the mouse--VERY efficient. One could plot two functions, the difference of the two functions and note the intersection of a pair is the zero of the difference. Good stuff like that. Also, one can work on transformations of the basic functions, computing viewing windows that "recenter" the transformed graph. It's an excellent grapher.
What math does one need to know to use the resource?
The basic TI way of entering functions.
What hardware expertise does one need to learn to use the resource?
Web basics.
What extra things must be done to make it work?
Ran immediately after going to the site.
How hard was it for you to learn?
Very Easy
Explanation:
Everything laid out, not crowded, examples immediately showed proper syntax. Doesn't try to handle "4x"; instead, "4*x". I WILL use in class this term.
Ability to meet my goals:
Effective
Recommended for:

Algebra II: Solving systems of equations, Quadratic Equations, Quadratic Inequalities, Functions / Relations, Parent Functions, Transformations of functions, Polynomials, Rational Expressions, Exponential Functions, Logarithmic Functions
Trigonometry: Trig Functions, Inverse Functions, Solving Trig Equations
PreCalculus: Functions, Operations with Logs, Linear Algebra, Partial Fractions
Calculus: Functions, Graphs, and Limits, Concept of the Derivative, Derivative at a Point, Derivative as a Function, Second Derivatives