# Teaching 4.MD.A.1 – Know Relative Sizes of Measurement Units Including km, m, cm; kg, g; lb, oz.; l, ml; hr, min, sec.

## Measurement & Data – 4th Grade

**Solve problems involving measurement and conversion of measurements.**

Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz.; l, ml; hr, min, sec. Within a single system of measurement, express measurements in a larger unit in terms of a smaller unit. Record measurement equivalents in a two-column table.

*For example, know that 1 ft is 12 times as long as 1 in. Express the length of a 4 ft snake as 48 in. Generate a conversion table for feet and inches listing the number pairs (1, 12), (2, 24), (3, 36), ..*

**Teacher Notes**

Students should know some benchmarks for units of measurement and when measuring objects, we must decide which unit (a smaller or larger unit) is most appropriate for expressing measurements.

**Student Knowledge Goals**

I know the relative sizes of measurement units within one system of units.

I know length is measured with meters (m), kilometers (km), centimeters (cm), millimeters (mm), inches (in), feet (ft).

I know volume is measured with liters (l), milliliters (ml).

I know mass is measured with grams (g), kilograms (kg), ounces (oz), pounds (lb).

I know time is measured with hours (hr), minutes (min), and seconds (sec).

I can record measurement equivalencies in a two-column table.

**Vocabulary**

centimeter (cm.)

convert

customary system

equivalent

estimate

gram (g.)

kilogram (kg.)

kilometer (km.)

liter (l.)

meter (m.)

metric system

millimeter (ml.)

minute (min.)

ounce (oz.)

pound (lb.)

second (sec.)

system of measurement

two-column table

unit

**Lessons**

Engage NY Module 7 A-1 –Create conversion tables for length, weight, and capacity units using measurement tools, and use the tables to solve problems.

Engage NY Module 7 A-2 – Create conversion tables for length, weight, and capacity units using measurement tools, and use the tables to solve problems.

Engage NY Module 7 A-3 – Create conversion tables for units of time, and use the tables to solve problems.

Engage NY Module 7 A-4 – Solve multiplicative comparison word problems using measurement conversion tables.

**Student Video Lessons**

*The following Study Jams’ Lessons are not necessarily 4th grade Common Core aligned, but they provide an excellent background and review for students.*

Study Jams – Units of Measurement

Study Jams – US Customary Units of Measurement

Study Jams – Tools of Measurement

Study Jams – Measurement of Length

Study Jams – Measurement of Temperature

Study Jams – Time Conversions

Learn Zillion – Know relative sizes of measurement units

Virtual Nerd – Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz.; l, ml; hr, min, sec.

**Online Problems and Assessments**

Khan Academy – Questions and Video Lessons

Which customary unit is appropriate?

Compare and convert customary units of length

Compare and convert customary units of weight

Compare and convert customary units of volume

Compare and convert customary units

Conversion tables – customary units

Which metric unit is appropriate?

Compare and convert metric units of length

Compare and convert metric units of weight

Compare and convert metric units of volume

Compare and convert metric units

Conversion tables – metric units

Convert mixed customary units

Convert time units

Fractions of time units

** Online Games**

Measurement Conversions

**Printables**

Measurement Conversions

Assessment Task 1

Assessment Task 2

Assessment Task 3

Assessment Task 4

Assessment Task 5

Assessment Task 6