3rd Grade Math Unit 8

Big Idea:

Determine solutions to elapsed time scenarios.

Student Expectations:

Priority TEKS

3.7(C) [Supporting] Determine the solutions to problems involving addition and subtraction of time intervals in minutes using pictorial models or tools such as a 15-minute event plus a 30-minute event equals 45 minutes.

Ongoing TEKS

3.4(A) [Supporting] Solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction

3.4(F) [Supporting] Recall facts to multiply up to 10 by 10 with automaticity and recall the corresponding division facts

Student Learning Targets:

• I will determine the solutions to problems of time intervals in minutes using pictorial models
• I will determine the solutions to problems of time intervals in minutes using tools.

Writing Prompt: Why is understanding elapsed time important?

Stem: It is important to understand elapsed time because….

Writing Prompt: What might happen if someone wasn’t able to tell time?

Stem: If someone isn’t able to tell time….

Writing Prompt: Tell about about a time you misread the clock and were too late or too early for an activity.

Stem: I misread a clock and was late/early for…

Essential Questions:

• What is the purpose of telling time?
• When do you use elapsed time in your daily life?

Extra Information:

Adopted Textbook: Pearson - enVision Math

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