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Module 2
Place Value and Problem Solving
with Units of Measure


Throughout this Module, students will:
  • tell and write time to the nearest minute using analog and digital clocks
  • understand that an analog clock is a portion of the number line shaped in a circle
  • use the number line and clock to solve addition and subtraction problems within an hour
  • measure using kilograms, grams, liters, and milliliters
  • estimate volumes and masses of familiar objects
  • estimate to reason about addition, subtraction, multiplication, and division word problems
  • round two, three, and four digit measurements to nearest ten or hundred
  • round to estimate two and three digit measurements then calculate to determine exact answer using the standard algorithm

Terminology Definition Illustration
Addend the numbers that are added together in an addition equation
Analog clock a clock that is not digital
Capacity the amount of liquid a particular container can hold
Compose change 10 smaller units for 1 of the next larger unit on the place value chart
Endpoint used with rounding on the number line; the numbers that mark the beginning and end of a given interval
Gram unit of measure for weight
Halfway the midpoint between two numbers
Interval time passed or segment on the number line
Kilogram unit of measure for mass
Liquid volume the amount of space liquid takes up
Liter unit of measure for liquid volume
Milliliters unit of measure for liquid volume
Plot locate and label a point on a number line
Point a specific location on the number line
Reasonable how plausible an answer is
Rename regrouping units
Round estimate a number to the nearest 10 or 100 using place value
Second a unit of time
Standard algorithm a step-by-step method for computing
Additional Resources

time number line lesson from JD K-4 Math on Vimeo.



Dr. Peter Smith, Superintendent

P.O. Box 606
DeWitt, NY 13214

Phone: (315) 445-8300

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