Parent Notes Standard Standard What does this What can I do Resources Code standard at home? mean? Measurement three objects This standard Ask your child to and Data by length; compare emphasizes a student’s arrange and order Grade 1 the lengths of two ability to sort and objects by their length. Standard 1 objects indirectly by order three objects Compare objects by (1MD.1) using a third object. according to their using another object to lengths. For example, a measure them. For student might compare example, your child the height of a desk on might use their shoe or one side of a room with string to measure the height of a table on objects, seeing which the other side of the object is larger by how room by finding a rod much space it takes on and comparing each of the shoe or string. the first two heights to the length of the rod. Measurement Express the length This standard focuses Ask your to and Data of an object as a on the student’s ability measure how many Grade 1 whole number of to understand the lengths an object is by Standard 2 length units, by concept of measuring using another object. (1.MD.2) laying multiple the length of an object For example, use a copies of a shorter from end to end using rectangle block to object (the length objects. The student measure how many unit) end to end; will measure lengths, lengths the table or understand that the which are a whole sofa are. length measurement number of length units, of an object is the where the length unit number of same size is some shorter object length units that (e.g., using paper clips, span it with no gaps unifix cubes, chain or overlaps. Limit to links, etc). Students contexts where the need to have a wide object being variety of experiences measured is with hands-on spanned by a whole activities that allow
Parent Notes Standard Code Standard What does this standard mean? What can I do at home? Resources Measurement and Data Grade 1 Standard 1 (1MD.1) three objects by length; compare the lengths of two objects indirectly by using a third object. This standard emphasizes a student’s ability to sort and order three objects according to their lengths. For example, a student might compare the height of a desk on one side of a room with the height of a table on the other side of the room by finding a rod and comparing each of the first two heights to the length of the rod. Ask your child to arrange and order objects by their length. Compare objects by using another object to measure them. For example, your child might use their shoe or string to measure objects, seeing which object is larger by how much space it takes on the shoe or string. Measurement and Data Grade 1 Standard 2 (1.MD.2) Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end; understand that the length measurement of an object is the number of same size length units that span it with no gaps or overlaps. Limit to contexts where the object being measured is spanned by a whole This standard focuses on the student’s ability to understand the concept of measuring the length of an object from end to end using objects. The student will measure lengths, which are a whole number of length units, where the length unit is some shorter object (e.g., using paper clips, unifix cubes, chain links, etc). Students need to have a wide variety of experiences with hands-on activities that allow Ask your to measure how many lengths an object is by using another object. For example, use a rectangle block to measure how many lengths the table or sofa are.