CCSS.MATH.CONTENT.1.MD.A.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 number of length units with no gaps or overlaps.
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Let's Get Measuring with Paper Clips
A set of templates to use when measuring with informal units.
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Informal Units Rulers
A set of rulers that use different sized, informal units to measure length.
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Measuring with Dinosaur Footprints - Worksheet
A worksheet to use when exploring informal units of length.
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Measuring Length with Informal Units - Worksheet
A worksheet to use when learning about measuring length using informal units.
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Open-Ended Math Problem Solving - Grades 1, 2, and 3 (PowerPoint Version)
A PowerPoint with 20 open-ended problem solving questions covering a range of mathematical concepts.
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Math Warm-Ups Interactive PowerPoint - Grade 1
A PowerPoint providing a series of warm-up activities for Grade 1 students across the mathematics curriculum.
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Measuring Length with Clover Worksheet
Measure familiar objects using our lucky clover in this St Patrick’s Day math activity!
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Spin and Sort – Longer, Shorter, Same
Practice comparing lengths with this sorting activity.
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Let's Get Measuring with Counters
A set of templates to use when measuring with informal units.
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Let's Get Measuring with Connecting Cubes
A set of templates to use when measuring with informal units.
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Length Investigation - The Longest Finger
A mathematics investigation involving length, embedded in a real-world context.
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Measuring, Comparing, and Ordering Height – Worksheet
A worksheet to use when learning about measuring length using informal units.
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Open-ended Math Problem Solving - Grades 1, 2, and 3 (Task Card Version)
A set of 20 open-ended problem solving task cards covering a range of mathematical concepts.
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Assessment - Measuring Length with Informal Units
A 30 minute assessment in which students will demonstrate their knowledge and understanding of length.
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Measuring with Dinosaur Footprints
A 60 minute lesson in which students will measure and compare lengths of objects using informal units.
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Measuring Length with Informal Units - Unit Plan
This Mathematics unit addresses the concept of measuring, comparing and ordering length using informal units.
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Review of Length
A 60 minute lesson in which students will review the concept of length.
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Length Investigation - The Longest Finger
A 60 minute lesson in which students will apply knowledge and understanding of length to a real-world context.
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Measuring, Comparing, and Ordering Height
A 60 minute lesson in which students will measure, compare, and order height using informal units.
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Measuring and Comparing Length
A 60 minute lesson in which students will measure and compare lengths of objects using informal units.