This applet site provides users with graphical representations of a parametric curve in 3D system for a defined vector function. A moving point with its Frénet frame, the tangent vector, the osculating plane and circle at this point is also provided, and the norms of the velocity vector, and the value of the torsion are displayed.
Type of Material:
Animation
Recommended Uses:
This site can be used in Homework, in-class examples, computer lab sessions, for individual learning, or group exploration in mathematics-related courses. This site can be also used as individual review or investigation but could also be incorporated into a homework assignment.
Technical Requirements:
Any browser.
Identify Major Learning Goals:
One of the major goals in this applet site is to understand and visualize essential concepts such as parametric and polar curves, vector fields, and continuity. This site intuitively helps users to interactively engaged with mathematical models and connecting algebraic representations with graphical and geometric interpretations.
Target Student Population:
Both undergraduate (Calculus I,II,III, Differential Equations) and graduate (Real Analysis or Complex Analysis) students can benefit from this applet site.
Prerequisite Knowledge or Skills:
Calculus of several variables; Differential calculus; or Knowledge of functions, parametric curves with basic understanding of functions, trigonometry, and calculus concepts (derivatives, integrals, vectors).
Content Quality
Rating:
Strengths:
The content's quality is very clear, simple, informative, accurate, interactive, and provides a user-friendly applet that has various topics with visual representation of three-dimensional vector-values functions which can be easily used in class. The user can change the parameter t of the moving point, and check the position of the curve relative to the osculating circle. The curve itself is graphed as well as a moving point with its Frénet frame, the tangent vector, the osculating plane and circle at this point. The norms of the velocity vector, the value of the torsion are displayed.
Concerns:
Some of the weakness in this applet site is the lack of provided written instructional guidance or in-depth explanation or link to resources, which may limit its use by unexperienced entery level students with instructor's support. If the site can provide input field to set the parametric interval would be a great option.
Potential Effectiveness as a Teaching Tool
Rating:
Strengths:
This applet site is effective and excellent for exploring and reinforcing concepts visually, and the site supports student-centered learning. This site can be used in illustrating textbook examples and homework assignments, where students can benefit from this site through their course's assignment homework or working through a planned worksheet.
Concerns:
This site can be more effective if provided with links, explanations, or resources. This site would also benefit from explicit learning objectives and example assignment. If the site can offer some guided exercises that walk students through the process would also very beneficial for students.
Ease of Use for Both Students and Faculty
Rating:
Strengths:
This applet site can be easily used for most users. However, some users may find it challenging to use due to the lack of provided written information or in-depth explanation. The plots are provided with the highest quality, which look like most standard textbooks' illustrations.
Concerns:
If the site can offer some written instructional guidance and a simple way to print different plots, it would be great.
Other Issues and Comments:
None
Creative Commons:
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