From Confidence to Competence: Getting to Effective Tool Use by CDA Collaborative Learning Projects | May 1, 2011 | Issue Paper From Confidence to Competence: Getting to Effective Tool Use May 2011 | The Do No Harm Project download publication Suggested Citation: The Do No Harm Project. From Confidence to Competence: Getting to Effective Tool Use. Cambridge, MA: CDA Collaborative Learning Projects, 2011. Related Publications Do No Harm in Land Tenure and Property Rights: Designing and Implementing Conflict Sensitive Land Programs Do No Harm: How Aid Can Support Peace – Or War Options for Aid in Conflict: Lessons from Field Experience