TEKS 3.7C: Time Interval Problems
Adding and Subtracting Time Using Pictorial Models
About this lesson
Learning Target: I can solve problems involving adding and subtracting time using a clock.
Focuses On:
- Reviewing how to read a clock
- Adding and subtracting time increments using a clock face
- Adding minutes to determine total time in hours and minutes
- Solving two step problems involving adding and subtracting of time given a model
Builds On:
2.9G:
Read and write time to the nearest one-minute increment using analog and digital clocks and distinguish between a.m. and p.m.
Next Level:
4.8C:
Solve problems that deal with measurements of length, intervals of time, liquid volumes, mass, and money using addition, subtraction, multiplication, or division as appropriate.
Read More:
The lesson is designed to support student understanding of adding and subtracting time using a clock face model.
The three instructional blocks are adding and subtracting time, time intervals and two-step time problems.
The first instructional block starts with a reminder of how to tell time using a clock face model.
The second instructional block has students add or subtract a given number of minutes using a specific time shown on a clock. The lesson progress in difficulty as students are asked to add times given in minutes and convert to hours and minutes.
The third instructional block has students solve two-step word problems involving time.
Visual models and pictorial representations are intentionally used throughout the lesson to support student understanding.
Grade 3MathTEKS 3.7CAdding and Subtracting Time Using Number Lines
About this lesson
Learning Target: I can solve problems involving adding and subtracting time using a number line.
Focuses On:
- Reviewing vocabulary related to time including minute, hour, and number line.
- Adding and subtracting time increments using a number line labeled with given times
- Adding minutes to determine total time in hours and minutes using a number line
- Solving two step problems involving adding and subtracting of time given a number line
Builds On:
2.9G:
Read and write time to the nearest one-minute increment using analog and digital clocks and distinguish between a.m. and p.m.
Next Level:
4.8C:
Solve problems that deal with measurements of length, intervals of time, liquid volumes, mass, and money using addition, subtraction, multiplication, or division as appropriate.
Read More:
The lesson is designed to support student understanding of adding and subtracting time using a number line that has been labeled with necessary time increments.
The two instructional blocks are adding and subtracting time and two-step time problems.
The first instructional block starts focuses on adding and subtracting time increments using a number line labeled with given times.
The second instructional block has students solve two-step time problems using a number line.
Visual models and pictorial representations are intentionally used throughout the lesson to support student understanding.
Grade 3MathTEKS 3.7C