Unit 6

Measuring Length, Time, Liquid Volume, and Weight

Unit Goals

Unit Narrative

In this unit, students measure length, weight, liquid volume, and time. They begin with a study of length measurement, building on their recent work with fractions.

In grade 2, students measured lengths using informal and formal units to the nearest whole number. They also plotted such length data on line plots. Here, students explore length measurements in halves and fourths of an inch. They use a ruler to collect measurements and then display the data on line plots, learning about mixed numbers and revisiting equivalent fractions along the way.

Kiran...

Section A

Section Goals

Section Narrative

In this section, students learn to measure lengths in fractions of an inch—first in halves of an inch and then in fourths of an inch. Students partition rulers with whole-number inch marks into equal intervals and then use them to measure lengths of objects in the classroom.

Students learn that measurements that are greater than 1 can be expressed with...

Let’s measure the length of objects around the room.

Let’s measure lengths in quarters of an inch.

Let’s measure lengths in halves of an inch and quarters of an inch.

Let’s make sense of line plots with lengths in half inches and quarter inches.

Let’s collect measurement data and show them on a line plot.

Section A Practice Problems

to access Section Checkpoints.

Section A

Let’s measure the length of objects around the room.

Let’s measure lengths in quarters of an inch.

Let’s measure lengths in halves of an inch and quarters of an inch.

Let’s make sense of line plots with lengths in half inches and quarter inches.

Let’s collect measurement data and show them on a line plot.

Section B

Section Goals

Section Narrative

In earlier grades, students learned that weight is a measurable attribute, and they directly compared the weights of two objects. In this section, students learn that weight is a measure of how heavy something is and that grams and kilograms are units for measuring weight. Since the distinction between mass and weight is beyond what students need to learn in...

Let’s measure and estimate weight.

Let’s learn about the volume of liquids and containers.

Let’s measure and estimate the volume of liquids and containers.

Section B Practice Problems

to access Section Checkpoints.

Section B

Let’s measure and estimate weight.

Let’s learn about the volume of liquids and containers.

Let’s measure and estimate the volume of liquids and containers.

Section C

Section Goals

Section Narrative

In this section, students learn to tell and write time to the nearest minute and to show a given time on an analog clock. They also solve elapsed time problems with an unknown start time, unknown duration, or unknown end time.

Han got on the bus:

Han got off the bus:

For how many minutes was Han on the bus?...

Let’s tell and write time to the nearest minute.

Let’s solve problems involving time.

Let’s solve more problems involving time.

Section C Practice Problems

to access Section Checkpoints.

Section C

Let’s tell and write time to the nearest minute.

Let’s solve problems involving time.

Let’s solve more problems involving time.

Section D

Section Goals

Section Narrative

In this section, students solve problems that involve measurements of weight, liquid volume, and time in the context of a state or county fair. The problems prompt students to use all four operations: addition and subtraction within 1,000 and multiplication and division within 100. The problems also prompt students to make sense of the situations and the questions being asked....

Let’s make sense of and represent measurement situations at the fair.

Let’s find out what information is needed to solve problems about measurements at the fair.

Let’s think about what numbers and questions make sense in problems.

Let’s solve problems about spending a day at the fair and think about how to best show our solutions.

Let’s design a game.

Section D Practice Problems

to access Section Checkpoints.

Section D

Let’s make sense of and represent measurement situations at the fair.

Let’s find out what information is needed to solve problems about measurements at the fair.

Let’s think about what numbers and questions make sense in problems.

Let’s solve problems about spending a day at the fair and think about how to best show our solutions.

Let’s design a game.

to access End-of-Unit Assessments.

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Measuring Length, Time, Liquid Volume, and Weight

Unit Goals

Unit Narrative

Section Goals

Section Narrative

Section A Practice Problems

Section Goals

Section Narrative

Section B Practice Problems

Section Goals

Section Narrative

Section C Practice Problems

Section Goals

Section Narrative

Section D Practice Problems

Unit 6 Resources

About Unit 6

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Section Goals

Section Narrative

Section B Practice Problems

Section Goals

Section Narrative

Section D Practice Problems

Section Goals

Section Narrative

Section C Practice Problems

Section Goals

Section Narrative

Section A Practice Problems