Virginia SOL 2.MG.2.b
The Standard
Determine the unit of time (minutes, hours, days, or weeks) that is most appropriate when measuring a given activity or context and explain reasoning (e.g., Would you measure the time it takes to brush your teeth in minutes or hours?).
Virginia Standards of Learning for Mathematics · The student will demonstrate an understanding of the concept of time to the nearest five minutes, using analog and digital clocks.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students choose a reasonable time unit for an activity or event. They explain their choice using the expected length of the activity.
What Mastery Looks Like
- Students select a sensible unit for familiar and unfamiliar activities. They explain their choice by comparing the activity with a known length of time.
Common Misconceptions
- Students may confuse how long an activity lasts with what time it begins. They may choose hours for short tasks or minutes for events lasting several days. Some treat days and weeks as interchangeable.
How to Assess It
- Give an exit ticket with these activities: tying a shoe, sleeping overnight, and taking a vacation. Students choose a unit for each and explain one choice.
Lesson moves
Ways to Teach It
Give pairs activity cards and four labeled containers, then have them sort each card into minutes, hours, days, or weeks.
Ask students to write which unit fits growing a bean plant, then defend their choice with a comparison.
Label four classroom corners with time units, read an activity, and have students move to the best choice and explain.
Use the class schedule and school calendar to identify events best measured in minutes, hours, days, and weeks.
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Printable 2.MG.2.b Worksheet
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Related Standards
- 3.MG.1.a
Justify whether an estimate or an exact measurement is needed for a contextual situation and choose an appropriate unit.
- 4.MG.2.a.i
the starting time and the ending time, determine the amount of time that has elapsed in hours and minutes;
- 1.MG.3.b
Describe the units of time represented on a clock as minutes and hours.
- 4.MG.2.a.ii
the starting time and amount of elapsed time in hours and minutes, determine the ending time; or
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