My First Web Page: Lesson 6: My First GeoGebra Assessment Page

Create Your Own Live Mathematics and STEM Web Pages

W3Schools.com: Learn JavaScript

GeoGebra Manual

Reference: GeoGebra Apps API

Embedding: GeoGebra Apps in a Web Page: Quick Start

  

Introduction: A Sampler Lesson 2: Styles and Layout Lesson 3: Adding Beautiful Mathematics to your web page Lesson 4: Interacting with your web page Lesson 5(a): Adding a GeoGebra Applet Lesson 5(b): Adding a Geometry Expressions Applet Lesson 6(a): Creating a GeoGebra Assessment Task Lesson 6(b): Creating a Geometry Expressions Assessment Task Lesson 7: Interacting with Third Party Apps Lesson 8: JavaScript, STEM and Internal Device Sensors Lesson 9: JavaScript, STEM and GPS Lesson 10: Adding Web Bluetooth Support (1): Talking to your SensorTag Lesson 11: Adding Web Bluetooth Support (2): Talking to your LaunchPad Lesson 12: Introduction to HTML Graphics: Canvas

Meeting a Friend (Tap the image to switch assessment tasks!) The Case of the Diminishing Square (Tap the image to switch assessment tasks!) The Beach Race (Tap the image to switch assessment tasks!)

  

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The powerful ability to interact directly with a GeoGebra applet embedded within a web page opens the door to many exciting opportunities for teaching and learning. Teachers in particular can take advantage of the ability to write to the applet and read from it to develop interactive tasks for their students for both assessment and exploration of key topics in mathematics.

Here we consider an applet that I wrote some years ago to serve as the basis of an algebraic modelling activity for senior students. We see it developed step by step, from simply posing questions and leaving students free to use the applet to explore their solutions with the aid of technology, to step-by-step items, which can readily serve as either formative or summative assessment. We even see how student responses can be sent directly from the page to the teacher or other students.

Meeting a Friend is a great example of algebraic modelling using dynamic geometry and computer algebra. This first model provides the user with a simple point dragging activity from which they can investigate relationships that have concrete and practical applications.

If you have any questions or would like to share your experience with this utility, please drop me an email!

  

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Display My Web Page

RESET Default Page

You are free to study the JavaScript code that works behind the scene in the many GeoGebra examples throughout these lessons by clicking on the ggb.js button below. Similarly, the shared code for the various assessment tasks can be accessed using the shared code button.

  View GeoGebra JavaScript (ggb1.js)

  View JavaScript Shared Code (sharedcode2.js)

 

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Asking the Right (Interactive) Questions

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Set Interactive Questions Add Email Code Add QR Code   An interesting opportunity lies in offering additional representations for students to think about and perhaps to understand their mathematics in new ways. One option may be to encourage students to listen to their functions! So Why Not Add Music?   Create This Page

Now the fun really starts! The first button (Set Interactive Questions, calling on the meeting.js JavaScript page) demonstrates the way that questions may be posed, sending students to perform tasks within the applet, and then the results captured. Later questions guide students step-by-step in building up algebraic models for the various components of the task. These may be verified graphically by reference to the applet. Adding Feedback offers teachers the option to turn a powerful assessment task into an effective learning task by offering hints and feedback directly related to student responses. The particular options provided here are just a starting point for teachers to take their own directions as desired. The option to check student results using the excellent GeoGebra CAS (computer algebra system) or numeric methods either via GeoGebra or JavaScript is an exciting one, and well worth exploring. Try changing the feedback variable in the HEAD of the script above from 1 to 0. This removes feedback and automatically turns the task from exploration and formative assessment to summative assessment! Item data and response information (like time spent on the item, score and student response) are all still collected and available to the teacher - they just don’t appear to the student. Two very useful options exist for students to send their responses directly to their teacher (or to share with colleagues) using QR Code or email. Note that there is a limit of around 2000 characters for this transaction.

NOTE: Did you notice that these web pages are effectively templates, with the questions and texts stored in the JavaScript source code, and automatically inserted by the setup() function on the page being loaded? I have been exploring this approach for developing these similar assessment pages, and it makes life so much easier! Study the code and see how it works!

 

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GeoGebra as an Assessment Tool: A Showcase

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Study the code for this and other examples. Note the use of the template for the html page code...

    GeoGebra Assessment Showcase ⇒

 

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Take some time to play with the code and study the effect - as always, you will learn best by doing.

 

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