Virginia SOL 4.MG.2

4.MG.2 is a Standards of Learning standard. These are the knowledge and skills expectations under it.

• 4.MG.2.a.i

  the starting time and the ending time, determine the amount of time that has elapsed in hours and minutes

• 4.MG.2.a.ii

  the starting time and amount of elapsed time in hours and minutes, determine the ending time

• 4.MG.2.a.iii

  the ending time and the amount of elapsed time in hours and minutes, determine the starting time.

01

What Students Need to Do

Students use clocks, timelines, or time jumps to find a missing start time, end time, or duration. They solve one-step and multistep situations, including times that cross noon.

02

What Mastery Looks Like

Students identify whether the missing value is the start, end, or duration. They calculate accurately across noon, regroup 60 minutes as one hour, and label a.m. or p.m. correctly.

03

Common Misconceptions

Students may treat an hour as 100 minutes or subtract clock digits without regrouping. They may switch a.m. and p.m. at 12 incorrectly. In multistep problems, they may skip one time interval or confuse start time with elapsed time.

04

How to Assess It

Give this exit ticket: “A trip began at 10:35 a.m. and lasted 3 hours. What time did it end?” Ask students to show clock jumps.

1. 01

   Give pairs geared clocks and time cards, then have them model each trip and record jumps by hours and minutes.

2. 02

   Ask students to compare a number line solution with a clock solution and explain which makes crossing noon clearer.

3. 03

   Play a matching game where students connect cards showing a start time, an end time, and the correct duration.

4. 04

   Use a school event schedule to calculate arrival times, activity lengths, and when students must leave for the next event.

• 7.CE.1

  The student will estimate, solve, and justify solutions to multistep contextual problems involving operations with rational numbers.

• 3.CE.1

  The student will estimate, represent, solve, and justify solutions to single-step and multistep problems, including those in context, using addition and subtrac...

• 5.CE.1

  The student will estimate, represent, solve, and justify solutions to single-step and multistep contextual problems using addition, subtraction, multiplication,...

• 3.MG.3

  The student will demonstrate an understanding of the concept of time to the nearest minute and solve single-step contextual problems involving elapsed time in o...