f. Determine possible perimeters, in whole units, for a rectangle with a fixed area, and determine possible areas when given a rectangle with a fixed perimeter. 

Measurement

4.2f Perimeter

a. Describe the relative size among metric units of length (i.e., millimeter, centimeter, meter), between metric units of capacity (i.e., milliliter, liter), and between metric units of weight (i.e., gram, kilogram). 

4.1a Relative size of metric units – length, capacity, weight

c. Estimate and measure capacity using milliliters, liters, cups, pints, quarts, and gallons, and measure weight using grams and kilograms. 

4.1c Estimate/measure capacity

a. Describe the relative size among customary units of capacity (i.e., cup, pint, quart, gallon). 

4.1b Relative size of customary units - capacity

Develop/use relationships among area formulas of triangles and parallelograms to right triangles/rectangles 

4.2e Develop relationships among area formulas

d. Recognize that angles are measured in degrees and develop benchmark angles (e.g., 45°, 60°, 120°) using 90° angles to estimate angle measurement. 

4.1d Develop benchmark angles – 45°, 60°, 120° – using 90° angles

e. Measure angles using a protractor or angle ruler. 

4.1e Measure angles with protractor

b. Describe the relative size among customary units of capacity (i.e., cup, pint, quart, gallon). 

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Measurement

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