This interactive site has a collection of 24 GeoGebra based activities for confidence intervals.
Type of Material:
Simulation
Recommended Uses:
In class, individual, and in an introductory lecture about confidence intervals.
Technical Requirements:
Any Browser
Identify Major Learning Goals:
To get an understanding of what confidence intervals represent. All activities in this site can provide students with a great visualization tool to understand the basics of confidence intervals and their representations.
Target Student Population:
Students in an elementary statistics class
Prerequisite Knowledge or Skills:
The basics of what a confidence interval represents.
Content Quality
Rating:
Strengths:
The visualizations and example questions contained in this collection will help students understand the confidence interval concepts. The explanations written in each of the activities are clear and the graphics are designed well.
Concerns:
It would be helpful to have links from each of the activities to resources that go over the specific confidence interval type that is being explored.
Potential Effectiveness as a Teaching Tool
Rating:
Strengths:
This collection can be used to supplement the confidence interval chapter in the elementary statistics class. It will help students understand the relationships between the sample size, the confidence level, other parameters, and the confidence interval. The interactivity will especially work well for the tactile learner and the three activities that include dozens application examples of confidence intervals are also helpful.
Concerns:
Although some of the activities include a brief description of the what the goals are, others do not include such descriptions.
Ease of Use for Both Students and Faculty
Rating:
Strengths:
The individual activities contain sliders that are simple to use and the responsive charts clearly show the confidence intervals and highlight the associations between the parameters and the charts.
Concerns:
The initial page that contains the collection is difficult to navigate. Some of the titles are cut off, such as “Confidence Intervals,”, and “Confidence Intervals for the”. An instructor will need to send students to the individual pages rather than to the main page that lists the activities. Also, when one scrolls down the links repeat themselves making it look like there are many more to choose from than what are actually included.
Creative Commons:
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