Virginia SOL K.MG.3.a
The Standard
Identify a calendar as a tool used to measure time.
Virginia Standards of Learning for Mathematics · The student will describe the units of time represented in a calendar.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students recognize a calendar and explain that it keeps track of days. They distinguish it from tools that measure length or hours.
What Mastery Looks Like
- A student selects a calendar from several classroom tools. The student explains that it helps people keep track of days and upcoming events.
Common Misconceptions
- Students may confuse a calendar with a clock. They may think calendars show only special events rather than the passing of days.
How to Assess It
- Show pictures of a calendar, clock, and ruler. Ask, “Which tool helps us keep track of days? How do you know?”
Lesson moves
Ways to Teach It
Give pairs a paper calendar and sticky note, then have them mark today and the next school day.
Ask, “How could a calendar help us remember when a birthday or field trip will happen?”
Play Tool Match by pairing picture cards showing calendars, clocks, and rulers with days, hours, and length.
Use the class calendar to count how many days remain until a school event.
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Printable K.MG.3.a Worksheet

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Related Standards
- 2.MG.1.a.i
identifying a ruler as an instrument to measure length;
- 1.MG.3.a
Identify different tools to measure time including clocks (analog and digital) and calendar.
- 2.MG.2.b
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., Wou...
- K.MG.3
The student will describe the units of time represented in a calendar.
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