This Formative Assessment Lesson is designed to be part of an instructional unit. This task should be implemented approximately two-‐thirds of the way through the instructional unit. The results of this task should then be used to inform the instruction that will take place for the remainder of your unit.
This lesson unit is intended to help you assess how well students are able to compare common measurable attributes of objects to see which has more of the attribute. It will help you to identify students who have the following difficulties:
• Describing measurable attributes of objects
• Directly comparing two objects
• Describing the difference between the measurable attributes of two objects
Common Core State Standards
This lesson involves mathematical content in the standards from across the grade, with emphasis on:
Measurement and Data K.MD
Describe and compare measurable attributes:
1 Describe measurable attributes of objects, such as length or weight. Describe several measurable attributes of a single object.
2 Directly compare two objects with a measurable attribute in common, to see which object has “more of”/“less of” the attribute, and describe the difference. For example, directly compare the heights of two children and describe one child as taller/shorter.
This lesson involves a range of Standards for Mathematical Practice, with emphasis on:
2 Reason abstractly and quantitatively.
3 Construct viable arguments and critique the reasoning of others.
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