Eureka Math Parent Tips
Third Grade Module 2
This document is being produced for the purpose
of giving parents and students in Calcasieu Parish
a better understanding of the math concepts being
taught.
Place Value and Problem Solving
with Units of Measure
In this module, students explore
measurement using kilograms,
grams, liters, milliliters, and
intervals of time in minutes.
Louisiana Standards:
- Use place value understanding to round
whole numbers to the nearest 10 or 100.
- Fluently add and subtract within 1000 using strategies and algorithms based on place
value, properties of operations, and/or the relationship between addition and subtraction.
- Tell and write time to the nearest minute and measure time intervals in minutes. Solve
word problems involving addition and subtraction of time intervals in minutes, e.g., by
representing the problem on a number line diagram.
- Measure and estimate liquid volumes and masses of objects using standard units of grams
(g),kilograms (kg), and liters (l). Add, subtract, multiply, or divide to solve one-step word
problems involving masses or volumes that are given in the same units, e.g., by using
drawings (such as a beaker with a measurement scale) to represent the problem.
Words to Know…
Seconds
Halfway
Minutes
Number line
Continuous
Plot (plotting)
Analog Clock
Point
Intervals
Round
Vertical
Tick Marks
Gram (g)
Liter (L)
Kilogram (kg)
Milliliter (mL)
Weight
Estimate
Scale
Capacity
Halfway
Liquid Volume
Approximate
Beakers
Stacy has 13 math problems on
her test. It takes her 2 minutes to
complete each problem. How
many minutes does it take Stacy to
finish all 13 problems?
Third Grade Module 2
In Lesson 2, students use a number line to
understand that time is a continuous unit of
measurement. Students apply what they learn
about skip-counting by fives to telling time on
a number line. They learn how to read/draw a
number line with hours as endpoints and
minutes in multiples of five. In Lesson 3,
students begin to use a number line that is
divided into one-minute intervals.
Decomposing liters
and kilograms using
number bonds.
Students should understand
that 1 kg is equal to 1,000 g. If
part of 1 kg (1,000 g) is 250 g
then the other part (?) should
equal to 1 kg (1,000 g).
1,000 g – 250 g = 750 g.
They should also understand
that 1 L is equal to 1,000 mL. If
part of 1 L (1,000 mL) is 300
mL then the other part (?)
should equal to 1 L (1,000 mL).
1,000 mL – 300 mL = 700 mL.
Start Unknown Problem – End time and minutes elapsed known, start
time unknown.
Jordan cleans his room for 45 minutes. He finished cleaning his room at
4:52 p.m. What time did Jordan start cleaning his room?
Result Unknown Problem – Start time and minutes elapsed known,
end time unknown.
Tracy starts dance team practice at 3:15 p.m. She practices for 27
minutes. What time does dance practice end?
Third Grade Module 2
Solve using a place value chart:
Students will now use
a vertical number
line. Vertical number
lines are drawn up
and down. A vertical
number line is helpful
when representing
numbers that needed
to be rounded. When Solve using standard algorithm:
plotting a number on
a vertical number line
the student can
Rename to 1 ten and
visually see which ten
3 ones. Write the 1 so
or hundred the
that it crosses the line
number is closer to
under the tens in the
and also reminds the
tens place or above
student to round UP
the 5 in the tens place
or round DOWN.
(both are correct).
How you can help at home…
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Roll 2 number cubes.
Find the products of the factors.
Locate numbers in catalogs or newspapers,
then practice rounding them to the nearest
tens and hundreds.
Make records of important times of the day (wake-up, dinner, going to
school, getting home from school, etc.) and practice telling how long
between activities.
Calculate elapsed time by finding out how long it takes to complete daily
activities (soccer practice, homework, take a shower, etc.)
Fill a small box with blocks (e.g., sugar cubes) to determine its volume.
Brainstorm multiple strategies to determine the volume.