Find Elapsed Time Across an Hour
Read the supplied start and finish on the same afternoon.
About 15 minutes, plus any extended practice
Open lesson 1Solve Time, Mass, and Liquid-Volume Problems
Measure elapsed minutes and calculate with grams, kilograms, and liters in supplied records.
Before you begin
- Read clocks; add, subtract, multiply, and divide whole numbers.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Combine Mass Measurements with Matching Units
Read the stated mass unit and operation needed.
About 15 minutes, plus any extended practice
Open lesson 2Share a Supplied Liquid Volume Equally
List the total liters and number of equal containers.
About 15 minutes, plus any extended practice
Open lesson 3Choose a Unit Appropriate to the Quantity
Read what quantity is being described.
About 15 minutes, plus any extended practice
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.
Topic references
- Common Core State Standards, mathematics: 3.MD.A.1 — Measure elapsed minutes and calculate with grams, kilograms, and liters in supplied records.
- Common Core State Standards, mathematics: 3.MD.A.2 — Measure elapsed minutes and calculate with grams, kilograms, and liters in supplied records.
These references informed the topic selection. They do not certify complete standards alignment.