This best-selling text has been fully updated to include developments and refinements brought about by widespread international application of the assessment tools in the acclaimed Mathematics Recovery Program. This revised version of Early Numeracy: Assessment for Teaching and Intervention helps teachers identify children's difficulties and misconceptions, and become more skilled and confident in planning programs for intervention and monitoring children's progress. This new edition includes: Integrated frameworks of tasks for assessing children's knowledge and strategies Four separate and revised diagnostic assessment interviews Assessments for addition and subtraction strategies, base ten arithmetical strategies, early grouping strategies, and advanced grouping strategies