Introduction to AppleTree
Introduction to AppleTree
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The research team from National Institute of Education (NIE) Nanyang Tehcnological Univeristy (NTU) Singapore, has developed AppleTree (appletree.sg) - a system to support learners' Computer-Supported Collaborative Argumentation (CSCA).
It helps to boost the process and outcome of Collaborative Argumentation (CA) and supporting formative (diagnostic) assessment that in order to cultivate students’ collaborative learning and self-directed learning.
About the AppleTree System
About the AppleTree System
AppleTree offers the following for learning:
(i) Scaffolded argumentation based on Claim-Evidence-Reasoning (CER) model that many Singapore teachers are using
(ii) Graph (instead of text-based) based representations
Graph-based workspace in Phase 4 (Refinement)
(i) Shared working space to work together with your peers
(ii) Rate/Comment/Feedback on your peer's argumentation
(iii) Chat function to support group discussion and coordination
(i) Real time automated learning analytics on learners’ participation, interaction, collaboration and argumentation structure
(ii) Real time automated learning analytics on both learners’ and the groups’ collaborative argumentation.
(iii) Visual representations of the automate learning analytics to help learners and lesson designers monitor the progress of collaborative argumentation
Pedagogical Model
Pedagogical Model
A 5-phase pedagogical model - Spiral Model of Collaborative Knowledge Improvement (SMCKI) (Chen, Tan, & Pi, 2021) was developed to strengthen the connection between the individual and group. It provides the support for a smooth transition between individual and collaborative learning within a class setting.
Overview of SMCKI
Overview of Spiral Model of Collaborative Knowledge Improvement (Adopted from Chen, Tan, & Pi, 2021)
This model is meant to generate knowledge, share, and improve information at the group and class levels. Everybody gets to generate and share ideas easily.
This enables a large amount of knowledge to be generated and shared. It also helps you to refine your ideas or knowledge on the topic.
Learning Analytics
Learning Analytics
The system provides real time learning analytics and assessment of learner's collaborative argumentation by including your individual performance in the group, as well as the group’s performance in the class.
It enables you to have a quick evaluation and reflection of your Collaborative Argumentation (CA) process and outcome from aspects of social participation and argumentation structure.
Contribution Count
Contribution Count
Social Network
Social Network
Argumentation Structure
Argumentation Structure
Contribution Count
Contribution Count
Contribution count allows you to monitor how each member of the group are performing in terms of the ideas, claims and evidence they provide, and how groups are performing in the class.
Contribution count within group
Contribution count within class
Social Network
Social Network
Social Network is used to monitor how group members are interacting with one another in the group. This allows you to see how you are working together as a group on a particular argument.
Social Network within group
Social Network within class
Argumentation Structure
Argumentation Structure
Argumentation structure is used to measure the structure completeness of each group's argument.
It looks at how many claims are being presented, supported, or rebutted with ample evidence. It provides an overview of the class progression and allows the lesson designer to provide feedback for a specific group.
Argumentation structure overview
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For more information:
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