The informal arithmetic inventory, an informal diagnostic technique for use with elementary age students, indicates a child's specific weaknesses in arithmetic, such as inadequate concept development, poor computational skills, or inability to apply skills in a practical problem solving situation. (SBH)

Four informal assessment techniques to detect student mistakes in math, increase motivation, and improve achievement include the following: building models and generating word problems, thinking aloud, building mathematical sentences, and making mathematical sentences to answer questions in word problems. (DB)

A cost-effective, efficient strategy for informal assessment of learning-disabled students' writing samples utilizes an "Error Analysis Worksheet" which provides a written, documented record of the evaluation which can then be used to plan goals and objectives for writing instruction for the student. (CB)