In this lesson, students will learn about elapsed time and how to find the elapsed time given the
starting and ending time.

Objectives

Upon completion of this lesson, students will:

understand the concept of elapsed time

be able to calculate elapsed time given the starting and ending time

Standards Addressed:

Grade 10

Measurement

The student demonstrates understanding of measurable attributes.

Grade 3

Measurement

The student demonstrates understanding of measurable attributes.

Grade 4

Measurement

The student demonstrates understanding of measurable attributes.

Grade 5

Measurement

The student demonstrates understanding of measurable attributes.

Grade 6

Measurement

The student demonstrates understanding of measurable attributes.

Grade 7

Measurement

The student demonstrates understanding of measurable attributes.

Grade 8

Measurement

The student demonstrates understanding of measurable attributes.

Grade 9

Measurement

The student demonstrates understanding of measurable attributes.

Grade 3

Statistics, Data Analysis, and Probability

1.0 Students conduct simple probability experiments by determining the number of possible outcomes and make simple predictions

Grade 4

Statistics, Data Analysis, and Probability

2.0 Students make predictions for simple probability situations

Third Grade

Measurement and Data

Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects.

Grades 3-5

Measurement

Apply appropriate techniques, tools, and formulas to determine measurements

3rd Grade

Measurement

The student will demonstrate through the mathematical processes an understanding of length, time, weight, and liquid volume measurements; the relationships between systems of measure; accurate, efficient, and generalizable methods of determining the perimeters of polygons; and the values and combinations of coins required to make change.

4th grade

Measurement

Standard 4-5: The student will demonstrate through the mathematical processes an understanding of elapsed time; conversions within the U.S. Customary System; and accurate, efficient, and generalizable methods of determining area.

5th grade

Measurement

The student will demonstrate through the mathematical processes an understanding of the units and systems of measurement and the application of tools and formulas to determine measurements.

3rd Grade

Measurement

Content Standard 4.0 The student will become familiar with the units and processes of measurement in order to use a variety of tools, techniques, and formulas to determine and to estimate measurements in mathematical and real-world problems.

4th Grade

Measurement

The student will become familiar with the units and processes of measurement in order to use a variety of tools, techniques, and formulas to determine and to estimate measurements in mathematical and real-world problems.

5th Grade

Measurement

The student will become familiar with the units and processes of measurement in order to use a variety of tools, techniques, and formulas to determine and to estimate measurements in mathematical and real-world problems.

Grade 3

Measurement

12. The student reads and writes time and measures temperature in degrees Fahrenheit
to solve problems.

Grade 4

Measurement

12. The student applies measurement concepts. The student measures time and
temperature (in degrees Fahrenheit and Celsius).

Grade 5

Measurement

11. The student applies measurement concepts. The student measures time and
temperature (in degrees Fahrenheit and Celsius).

3rd Grade

Measurement

3.16 The student will identify equivalent periods of time, including relationships among days, months, and years, as well as minutes and hours.

5th Grade

Measurement

5.12 The student will determine an amount of elapsed time in hours and minutes within a 24-hour period.

Student Prerequisites

Arithmetic: Students must be able to:

complete simple addition

Technological: Students must be able to:

perform basic mouse manipulations such as point, click and drag

use a browser for experimenting with the activities

Teacher Preparation

Students will need:

access to browser

paper and pencil

Key Terms

addition

The operation, or process, of calculating the sum of two numbers or quantities

elapsed time

A period of time that has passed, usually between a given starting time and ending time

Lesson Outline

Focus and Review

Open the lesson with this question, replacing times to make it more authentic:

We started math at 10 a.m. It is now 11 a.m. How long have we been doing math?

What do we call this time?

Objectives

Let the students know what they will be doing and learning today. Say something like this:

Today, class, we are going to learn what elapsed time is and how to calculate it.

We are going to use the computers to do this but please do not turn your computers on until I
ask you to. I want to show you a little about this activity first.

Teacher Input

Lead the students in a
discussion about elapsed time.

Guided Practice

Have the students draw starting and ending times on their
Elapsed Time Record Sheet. Then instruct them to calculate the elapsed time.

Open your browser to the
Elapsed Time applet. Explain to the students how to work the applet.