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# Standard #: MA.3.M.2.2

This document was generated on CPALMS - www.cpalms.org

Solve one- and two-step real-world problems involving elapsed time.

### Examples

A bus picks up Kimberly at 6:45 a.m. and arrives at school at 8:15 a.m. How long was her bus ride?

### Clarifications

Clarification 1: Within this benchmark, the expectation is not to include crossing between a.m. and p.m.

### General Information

Subject Area: Mathematics (B.E.S.T.)
Strand: Measurement
Status: State Board Approved

#### Related Courses

 Course Number1111 Course Title222 5012050: Grade Three Mathematics (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current)) 7712040: Access Mathematics Grade 3 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current)) 5012055: Grade 3 Accelerated Mathematics (Specifically in versions: 2019 - 2022, 2022 and beyond (current)) 5012015: Foundational Skills in Mathematics 3-5 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

#### Related Access Points

 Access Point Number Access Point Title MA.3.M.2.AP.2 Solve for end time in one-step real-world problems when given start time and elapsed time in whole hours or minutes within the hour.

#### Formative Assessments

 Name Description Find the Time Students are asked to solve two subtraction problems involving time. What Time Is It Now? Students are asked to solve two addition problems involving time. Time Spent Students determine time intervals in minutes given a starting time and an ending time on analog clocks.

#### Lesson Plans

 Name Description Physical Science Unit: Water Beach Vacation Lesson 6 Condensation Experiment Students set up an experiment and gather data to investigate the condensation of water. This is a lesson in the Grade 3 Physical Science Unit on Water. This is a themed unit of SaM-1's adventures while on a Beach Vacation.  To see all the lessons in the unit please visit https://www.cpalms.org/page818.aspx. . Physical Science Unit: Water Beach Vacation Lesson 4 Melting Experiment Students set up an experiment and gather data to investigate the melting of solid water. This is a lesson in the Grade 3 Physical Science Unit on Water. This is a themed unit ofSaM-1's adventures while on a Beach Vacation.  To see all the lessons in the unit please visit https://www.cpalms.org/page818.aspx. . Physical Science Unit: Water Beach Vacation Lesson 2 Changes to Water: Boiling and Freezing Students learn water can change state of matter through the addition or removal of heat.Students will learn the boiling and freezing points of water at standard pressure. Studentswill also review how data can be used to create line graphs and these graphs can showpatterns and changes to temperature over time. This is a lesson in the Grade 3 Physical Science Unit on Water. This is a themed unit of SaM-1's adventures while on a Beach Vacation.  To see all the lessons in the unit please visit  https://www.cpalms.org/page818.aspx. "Amazing Race-Elapsed Time" In this lesson, which focuses specifically on the elapsed time portion of the standard, students work in small groups in a "race" to solve real world problems involving time. Hands on the Clock This lesson gives students an opportunity to apply time knowledge to identify time intervals to the nearest minute.

#### Model Eliciting Activity (MEA) STEM Lessons

 Name Description Physical Science Unit: Water Beach Vacation Lesson 15 Beat the Heat MEA Part 2: Cooler Experiment In this MEA, students will have the opportunity to apply what they learned about describingthe changes water undergoes when it changes state through heating and cooling. This MEAis divided into four parts. In part 1, students will develop their hypothesis and receiveinformation on how to set up the cooler experiment. In part 2, students will use ice to testthe coolers they designed in Beat the Heat Engineering Design Lessons. Students will takemeasurements and collect data on their cooler. In part 3, students will analyze the datathey collected. Finally, in part 4 they will develop a procedure for selecting the mosteffective cooler to keep water frozen the longest at the beach. In the optional twist,students will need to take the mass of the cooler into account. This is a lesson in the Grade 3 Physical Science Unit on Water. This is a themed unit of SaM-1's adventures while on a Beach Vacation.  To see all the lessons in the unit please visit https://www.cpalms.org/page818.aspx. Physical Science Unit: Water Beach Vacation Lesson 16 Beat the Heat MEA Part 3: Analyzing Cooler Data In this MEA, students will have the opportunity to apply what they learned about describingthe changes water undergoes when it changes state through heating and cooling. This MEAis divided into four parts. In part 1, students will develop their hypothesis and receiveinformation on how to set up the cooler experiment. In part 2, students will be asked to useice to test the coolers they designed in Beat the Heat Engineering Design Lessons.Students will take measurements and collect data on their cooler. In Part 3 of this activity,students will analyze the data they collected in Part 2 by drawing and interpreting a scaledbar graph and line graph. Students will participate in a discussion about how to interpret thedata that was collected. Finally, in part 4 they will develop a procedure for selecting the bestcooler to keep water frozen the longest at the beach. In the optional twist, students willneed to take the mass of the cooler into account. This is a lesson in the Grade 3 Physical Science Unit on Water. This is a themed unit of SaM-1's adventures while on a Beach Vacation.  To see all the lessons in the unit please visit https://www.cpalms.org/page818.aspx. Physical Science Unit: Water Beach Vacation Lesson 17 Beat the Heat MEA Part 4: Ranking Procedure In this MEA, students will have the opportunity to apply what they learned about describingthe changes water undergoes when it changes state through heating and cooling. This MEAis divided into four parts. In part 1, students will develop their hypothesis and receiveinformation on how to set up the cooler experiment. In part 2, students will be asked to useice to test the coolers they designed in Beat the Heat Engineering Design Lessons.Students will take measurements and collect data on their cooler. In part 3, students willanalyze the data they collected. Finally, in part 4 they will develop a procedure for selectingthe best cooler to keep water frozen the longest at the beach. They will communicate theirfindings and procedure via a letter to next year’s class. In the optional twist, students willneed to take the mass of the cooler into account. This is a lesson in the Grade 3 Physical Science Unit on Water. This is a themed unit of SaM-1's adventures while on a Beach Vacation.  To see all the lessons in the unit please visit https://www.cpalms.org/page818.aspx.

#### Tutorial

 Name Description Time Word Problem: When to Leave to Get Home on Time In this Khan Academy tutorial video Chris is told to be home by 6:15. You know the number of minutes it takes him to get home. What time should he leave?

#### Tutorial

 Name Description Time Word Problem: When to Leave to Get Home on Time: In this Khan Academy tutorial video Chris is told to be home by 6:15. You know the number of minutes it takes him to get home. What time should he leave?

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