NC.4.MD.2
Use multiplicative reasoning to convert metric measurements from a larger unit to a smaller unit using place value understanding, two-column tables, and length models
Use multiplicative reasoning to convert metric measurements from a larger unit to a smaller unit using place value understanding, two-column tables, and length models
Step 1: Lesson Standards & Learning Goals
In this standard, students should understand how to express larger measurements in smaller units within the metric system to reinforce notions of place value. Students will make metric conversions from larger units to smaller units exploring the relationship between the units.
Students may use a two-column chart to convert from larger to smaller units and record equivalent measurements. Through exploration with place value and conversions, students may explore with various metric prefixes. However, students are only responsible for knowing conversions between centimeter/meter, gram/kilogram, and Liter/milliliter.
Students are also expected to use their place value understanding to support conversions. For example, since 1 meter is 100 centimeters, the number of centimeters is 100 times the number of meters. Therefore, if a piece of rope is 3 meters, then the rope is 300 cm long. This standard is focused on whole number conversions of metric units since students do not multiply decimals until Grade 5.
How do we convert measurements between different units within the same measurement system?
What strategies can we use to convert measurements accurately and efficiently?
How do measurement conversions relate to operations such as addition, subtraction, multiplication, and division?
How do we convert measurements within the metric system from larger units to smaller units and vice versa?
How can estimation skills help us verify the reasonableness of our measurement conversions?
Capacity
Centimeter
Gram
Kilogram
Length
Liter
Mass
Measure
Meter
Metric system
Milliliter
Generate and analyze number patterns in tables to support conversions among units (ex. One liter is the same value as 1,000 milliliters; two liters is the same value as 2,000 milliliters; three liters is the same value as 3,000 milliliters. ).
Identify relationships between units of measurement within the same system and use these relationships to perform conversions.
Convert measurements within the metric measurement system from larger units to smaller units and vice versa using multiplication and division by powers of 10, conversion tables, or diagrams.
Demonstrate proficiency in converting measurements between units of length, weight, and capacity.
Apply strategies and procedures for measurement conversion accurately and efficiently.
Solve problems involving measurement conversion in real-world contexts, such as shopping, cooking, and construction.
The concept of conversion and the need to convert measurements between different units within the same measurement system applies to real world scenarios.
There are patterns for converting between larger and smaller units within the metric system. (e.g., 1 meter = 100 centimeters; 1 kilogram = 1000 grams)
Conversion tables, diagrams, and place value are strategies that can be used in converting between metric units.
The metric system is based on units of ten (ex. 100 cm = 10 dm = 1 m).
Step 2: Assessment
NC.4.MD.8 - CO - Howell - Sept. 15, 2022
NC.4.MD.8 - CO - Howell - Mar. 8, 2023
NC.4 - Cluster 9 Review - CO - Howell - Mar. 6, 2023
NC.4 Benchmark Review Practice - CO - Howell - Mar. 31, 2023
Step 3: Lesson Instructions
Anchor Chart
Note - Weight should be Mass
Image: https://tools4ncteachers.com/resources/4-fourth-grade/additional-resources/cluster-1/fourthgradeanchorcharts.pdf
Measurement Scavenger Hunt
Create a list of items with their respective measurements in different units (e.g., length in centimeters and meters, weight in grams and kilograms). Students work in pairs or small groups to locate and measure each item using appropriate tools, then convert the measurements as necessary.
Exploration or Experience
Provide students with a meter stick. Ask them how they could use the meter stick to help with metric conversions.
Image: https://www.freepik.com/free-vector/construction_4869729.htm#fromView=search&page=1&position=5&uuid=7352706f-51d9-4238-a105-f06832991f9d
Tools 4 NC Teachers
Cluster 9 Lessons
Math Expressions - (Barnes and Hearne) - Standards Alignment
Motivation Math
Think Up! Math
Khan Academy - 4th Grade Math (Not addressed in Grade 4)
Eureka Math/Engage NY Free Resources
Embarc Online (Eureka Math)
Zearn Math - Online Support Practice for Eureka Math (Requires free account)
North Carolina Collaborative for Mathematics Learning - Grade 4 Instructional Framework
NCDPI Resources
Thinking Blocks - Word Problem Practice with Bar Diagrams
YouTube Videos
Fact Practice