2nd and 3rd Grade Math Error Analysis, Strategy Analysis, and Critical Thinking Skills This pack includes a collection of 84 authentic student responses gathered from 7 word problems (These can be used as a pre-assessment, mid-unit assessment, and post-unit assessment).These 84 student responses are unscored, which provides students with a unique opportunity to analyze each response, detect simple and more complex errors, identify and review problem solving strategies that were most effective,