Solve Problems Involving Time (Part 2)
10 min
Narrative
The purpose of this Warm-up is to elicit the idea that many different questions could be asked about this situation involving time, which will be useful when students solve problems in a later activity.
Launch
- Groups of 2
- Display the situation.
- “What do you notice? What do you wonder?”
- 1 minute: quiet think time
Teacher Instructions
- “Discuss your thinking with your partner.”
- 1 minute: partner discussion
- Share and record responses.
Student Task
What do you notice? What do you wonder?
Han ate his dinner before he caught a bus.
When he got off the bus, he had to hurry to get to band practice on time.
Solution Steps (2)
- 1Notice details about the situation→Han ate dinner, took a bus, arrived at band practice
- 2Generate questions about time→How long was the bus ride? What time did events occur?
Sample Response
Students may notice:
- Han was on the bus for some amount of time.
- Han had band practice after dinner.
- Han was almost late to band practice.
- How long was Han on the bus?
- What time did Han eat dinner?
- What time does band practice start?
Activity Synthesis (Teacher Notes)
- “Let’s add times to Han’s situation. What times could we add?” (the time he started or finished dinner, the amount of time he was on the bus, how long he waited for the bus, the time his band practice started)
- “What kinds of questions could we ask about this situation?”
Standards
Building Toward
- 3.MD.1·Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.
- 3.MD.A.1·Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.
15 min
20 min
Knowledge Components
All skills for this lesson
Role Legend
Target
Essential
Supporting
Foundational
All lesson KCs
2 skills
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Solve Problems Involving Time (Part 2)
10 min
Narrative
The purpose of this Warm-up is to elicit the idea that many different questions could be asked about this situation involving time, which will be useful when students solve problems in a later activity.
Launch
- Groups of 2
- Display the situation.
- “What do you notice? What do you wonder?”
- 1 minute: quiet think time
Teacher Instructions
- “Discuss your thinking with your partner.”
- 1 minute: partner discussion
- Share and record responses.
Student Task
What do you notice? What do you wonder?
Han ate his dinner before he caught a bus.
When he got off the bus, he had to hurry to get to band practice on time.
Solution Steps (2)
- 1Notice details about the situation→Han ate dinner, took a bus, arrived at band practice
- 2Generate questions about time→How long was the bus ride? What time did events occur?
Sample Response
Students may notice:
- Han was on the bus for some amount of time.
- Han had band practice after dinner.
- Han was almost late to band practice.
- How long was Han on the bus?
- What time did Han eat dinner?
- What time does band practice start?
Activity Synthesis (Teacher Notes)
- “Let’s add times to Han’s situation. What times could we add?” (the time he started or finished dinner, the amount of time he was on the bus, how long he waited for the bus, the time his band practice started)
- “What kinds of questions could we ask about this situation?”
Standards
Building Toward
- 3.MD.1·Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.
- 3.MD.A.1·Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.