Create a Two-Column Conversion Table
This Grade 4 Eureka Math skill teaches students to create a two-column conversion table by applying a multiplication rule to generate pairs of equivalent measurements. The left column lists values in the larger unit; the right column lists the corresponding values in the smaller unit, found by multiplying by the conversion factor. For example, a yards-to-feet table uses the rule 1 yard = 3 feet: (1,3), (2,6), (3,9), (4,12). A miles-to-feet table uses 1 mile = 5,280 feet. This systematic skill from Chapter 34 of Eureka Math Grade 4 builds measurement fluency.
Key Concepts
A two column conversion table shows pairs of equivalent measurements for two related units. To find the value in the second column (smaller unit), multiply the value in the first column (larger unit) by the conversion factor. $$ \text{Value in Smaller Unit} = \text{Value in Larger Unit} \times \text{Conversion Factor} $$.
Common Questions
How do you create a two-column measurement conversion table?
Label the left column with the larger unit and the right column with the smaller unit. For each value in the left column, multiply by the conversion factor to fill the right column.
How do you fill in a yards-to-feet conversion table?
Use the rule: 1 yard = 3 feet. Multiply each yard value by 3. For 1 yard: 3 feet; 2 yards: 6 feet; 3 yards: 9 feet; 4 yards: 12 feet.
What is the conversion factor for miles to feet?
1 mile = 5,280 feet. Multiply the miles value by 5,280 to find the equivalent in feet.
What does the conversion factor tell you?
It tells you how many smaller units equal one larger unit. It is the multiplication rule you apply to convert from the larger unit to the smaller unit.
How do you read a conversion table?
Read each row as a pair of equivalent measurements. The left value in a larger unit equals the right value in the smaller unit.