accurately. key elements to accurately (no gaps, Or, the student measuring no overlaps, accurately (no gaps, attentive to demonstrates some no overlaps, endpoints, understanding of her attentive to length units) in thinking behind endpoints, his or her own measurement methods length units) in words. but cannot measure or identify measurements his or her own Identifies two accurately. words. correct Identifies two measurements (2 correct paper clips and 4 measurements (2 centimeters; units paper clips and 4 are required). centimeters; units Explains that are not required). measuring with Explains that different lengths of measuring with units (small or large different lengths of paper clips) can units (small or large result in different paper clips) can quantities of result in different measurement for quantities of the same length measurement for item. the same length item. 4 The student clearly and The student The student The student accurately accurately: demonstrates little to demonstrates some measures and orders no understanding of understanding of how the items by length but Measures the train 1.MD.1 (8 cm), pencil (11 how to measure or use to measure but is is unable to solve cm), and lollipop (9 1.MD.2 the measurement to unable to manipulate either of the cm). compare. the measurements to comparison problems. 1.OA.1 Orders the items by order or compare. Or, the student is able length (train, to solve the lollipop, pencil). comparison problems Identifies the pencil correctly but with slight as longer than the inaccuracy in the lollipop. measurements (i.e., he Solves the is off by 1 or 2 comparison problem centimeters which then correctly by impacts the accuracy of identifying the (d)). pencil as 3 centimeters longer than the train.
accurately. Or, the student demonstrates some understanding of her thinking behind measurement methods but cannot measure or identify measurements accurately. key elements to measuring accurately (no gaps, no overlaps, attentive to endpoints, length units) in his or her own words. Identifies two correct measurements (2 paper clips and 4 centimeters; units are not required). Explains that measuring with different lengths of units (small or large paper clips) can result in different quantities of measurement for the same length item. accurately (no gaps, no overlaps, attentive to endpoints, length units) in his or her own words. Identifies two correct measurements (2 paper clips and 4 centimeters; units are required). Explains that measuring with different lengths of units (small or large paper clips) can result in different quantities of measurement for the same length item. 4 1.MD.1 1.MD.2 1.OA.1 The student demonstrates little to no understanding of how to measure or use the measurement to compare. The student demonstrates some understanding of how to measure but is unable to manipulate the measurements to order or compare. The student accurately measures and orders the items by length but is unable to solve either of the comparison problems. Or, the student is able to solve the comparison problems correctly but with slight inaccuracy in the measurements (i.e., he is off by 1 or 2 centimeters which then impacts the accuracy of (d)). The student clearly and accurately: Measures the train (8 cm), pencil (11 cm), and lollipop (9 cm). Orders the items by length (train, lollipop, pencil). Identifies the pencil as longer than the lollipop. Solves the comparison problem correctly by identifying the pencil as 3 centimeters longer than the train.