Content Standards: The learners should have knowledge and understanding of conversion of units of measure.
Performance Standards: By the end of the quarter, the learners are able to convert units of measure from different systems of measure. (MG)
Learning Competencies and Objectives: The learners convert units of measurement within the metric system and across other systems of measure.
Conversion of Units
Ask students to recall experiences where they needed to measure or convert units to solve a problem or make a decision. Explain that students will participate in a Measurement Situation Analysis, where they’ll analyze real-life scenarios that involve measurements.
Unlocking Content Area Vocabulary
- Metric system is a system used for measurement based on common units such as meters, grams, and liters.
- English system is a system used for measurement using common units such as inch, foot, yard, and mile.
Metric System to Metric System Conversion
Explain the concept of the metric system and its common units (e.g., meters, grams, liters). Show students how to convert between metric units using multiplication or division by powers of 10. Unit fractions may be used to convert from one unit to another.
Another method is by moving the decimal point. Since all units in the metric system are powers of 10, converting from one unit to another is as simple as moving the decimal point.
To change from a smaller unit to a larger unit (for example, from meters to kilometers), move the decimal point in the original quantity one place to the left of each larger unit of measurement until you obtain the desired unit of measurement.
To change from a larger unit to a smaller unit (for example, from kilometers to meters), move the decimal point in the original quantity one place to the right for each smaller unit of measurement until you obtain the desired unit of measurement.
Worked Example
For Units of Length
- Convert 2.3 m to centimeters.
a. conversion using a unit fraction
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