Common Core State Standards
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.
20 teaching
resources for those 'aha' moments
teaching resource
Math Warm-Ups Interactive PowerPoint - Grade 1
A PowerPoint providing a series of warm-up activities for Grade 1 students across the mathematics curriculum.
teaching resource
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.
teaching resource
Measuring Length with Informal Units - Worksheet
A worksheet to use when learning about measuring length using informal units.
teaching resource
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.
teaching resource
Measuring with Dinosaur Footprints - Worksheet
A worksheet to use when exploring informal units of length.
teaching resource
Goal Labels - Units of Measurement (Lower Elementary)
Seventeen Measurement Goal Labels for lower elementary.
teaching resource
Measuring, Comparing, and Ordering Height – Worksheet
A worksheet to use when learning about measuring length using informal units.
teaching resource
Informal Units Rulers
A set of rulers that use different sized, informal units to measure length.
teaching resource
Length Investigation - The Longest Finger
A mathematics investigation involving length, embedded in a real-world context.
teaching resource
Let's Get Measuring with Connecting Cubes
A set of templates to use when measuring with informal units.
teaching resource
Let's Get Measuring with Paper Clips
A set of templates to use when measuring with informal units.
teaching resource
Let's Get Measuring with Counters
A set of templates to use when measuring with informal units.
teaching resource
Spin and Sort – Longer, Shorter, Same
Practice comparing lengths with this sorting activity.
lesson plan
Assessment - Measuring Length with Informal Units
A 30 minute assessment in which students will demonstrate their knowledge and understanding of length.
lesson plan
Measuring with Dinosaur Footprints
A 60 minute lesson in which students will measure and compare lengths of objects using informal units.
lesson plan
Measuring and Comparing Length
A 60 minute lesson in which students will measure and compare lengths of objects using informal units.
lesson plan
Measuring, Comparing, and Ordering Height
A 60 minute lesson in which students will measure, compare, and order height using informal units.
lesson plan
Length Investigation - The Longest Finger
A 60 minute lesson in which students will apply knowledge and understanding of length to a real-world context.
lesson plan
Review of Length
A 60 minute lesson in which students will review the concept of length.
unit plan
Measuring Length with Informal Units - Unit Plan
This Mathematics unit addresses the concept of measuring, comparing and ordering length using informal units.