Virginia Standards of Learning
3rd Grade
Measurement
3.16 The student will identify equivalent periods of time, including relationships among days, months, and years, as well as minutes and hours.
Lessons (2)
Introduces students to modular (clock) arithmetic and how modular arithmetic can be used to encode messages using simple shift, multiple and affine ciphers.
Introduces students to elapsed time and how to calculate it.
Activities (3)
Practice reading a clock, input times for the clock to display, or let the clock generate random times for you to read. Choose from three difficulty levels. Clock Wise is one of the Interactivate assessment explorers.
Practice finding elapsed time given a starting time and an ending time. Elapsed Time is one of the Interactivate assessment explorers.
Given a starting time and elapsed time practice finding the ending time. Elapsed Time Two is one of the Interactivate assessment explorers.