DEVELOPMENT AND VALIDATION OF PRESENTATION
SOFTWARE FOR CALCULUS LECTURES
Prof. Danilo A. Cullo
The research study
entitled “Development and Validation of Presentation Software for Calculus Lectures” aimed
to develop and validate a set of teacher-based visual presentation materials intended for college instructors in the teaching of selected topics in calculus.
the objectives were;
to select calculus concepts/topics and create visual presentations materials
using PowerPoint presentation.
to design a non-linear presentation format necessary to create an interactive
environment for active learning.
to validate the visual
presentations based on content objectives by subject matter specialist.
In the development
of the visual presentation material the researcher was guided by four major phases of material
development: (1) Phase I as selection stage, (2) Phase II as designing stage, (3) Phase III as production stage
and (4) Phase IV as validation stage of the visual presentation material.
Results of the
validation revealed the following:
On the topic Pre-calculus, with 12 sub-topics, the subject matter specialists
unanimously agreed that all visual presentation materials made were valid.
For limits and continuity, with 9 sub-topics, specialists collectively
approved that the visual presentation materials made were valid.
For derivatives, having 5 sub-topics, specialists granted that the presentation
materials were valid.
For integration, with 8 selected sub-topics, all specialists agreed
that the visual presentation materials were valid.
For the 9 sub-topics under application of derivatives, subject specialists
generally agreed that presentation materials were valid.
Similarly for topics under application of integration, specialists approved
that all six (6)-presentation materials for each corresponding sub-topics were
Lastly, for sequences and series, all agreed to be valid.
The researcher concluded the following:
Selected topics in calculus (both differential and integral) can be
presented in an interactive classroom not only algorithmically but also visually.
The visual presentation materials can be designed in a non-linear sequence
of slide presentations.
The visual presentation materials made for 52 specific topics in calculus
were all valid presentation materials.
On the basis of findings and conclusions, the following recommendations
College instructors can be encouraged to produce or create visual presentation
materials to supplement their calculus teaching.
Students taking calculus subjects can use these presentation materials
as their subject reference.
The presentation software should be subjected for evaluation in terms
of the following aspects; software’s design format, presentation, audience
appeal and suitability, practice /assessment, ease of use, user interface and
Studies should be conducted in order to validate if the produced visual
presentation materials have significantly affected teaching and learning process
in calculus classrooms.
Studies should be made in order to evaluate whether computer-based instruction
or PowerPoint-Aided-Learning significantly differed from the traditional chalk
and talk method.