Infant 1

15.1 Estimate and measure lengths, heights and weights using nonstandard units: place selected device end-to- end (no gaps, no overlaps); use an equal arm balance.

15.2 Explore the concept of time: recognize a week as seven days and a year as 12 months; use names of days and of months; use a 12-hour clock to read time on the hour.

Infant 2

15.3 Estimate, measure, compare and record measurements: lengths in inches and centimeters - up to 12 inches or 30 cm (whole units) - recognize that 12 inches is equal to one foot - compare inch with centimeter; weight in ounces and grams - up to 16 oz.

15.4 Use standard units to measure perimeter of shapes in their environment.

Standard 1

15.5 Estimate, measure, compare and record measurements lengths in feet, yards and meters using various instruments: weight in pounds and kilograms; capacity in quarts, gallons, liters; time in intervals of 1 and 5 minutes, including digital clock, am and p

15.6 Convert among units within the same system: length, weight, volume, time, temperature.

15.7 Uses standard units to measure area of shapes in their environment. 15.8 Derive simple formulas for the perimeter of common shapes.

Standard 2

15.9 Estimate, measure, compare and record measures including fractional parts for metric and customary units: length, weight, volume, time, temperature.

15.10 Estimate and determine elapsed time given the duration of events.

15.11 Measures angle in degrees and name such angles (acute, right, obtuse, straight, scalene).

15.12 Convert measurements from one system to another: length, weight, volume, time, temperature.

15.13 Derive simple formulas for determining the area of common shapes.

15.14 Calculate perimeter of irregular shapes using metric and customary units.

Standard 3

15.15 Recognize the need for larger and smaller units of measurements: length, weight, volume, time; compare units used in everyday items (packages, industry).

15.16 Use angles to describe rotation and properties of shapes and figures.

15.17 Solve problems involving differences in temperature (positive and negative).

15.18 Calculate area of composite and irregular shapes using metric and customary units.

Standard 4

15.20 Solve problems involving the relationship between a 12-hour clock and a 24-hour clock.

15.19 Measure lengths, weights, volumes, time, temperature with metric and customary units and convert among them: select appropriate unit and instrument.

15.21 Calculate surface area of common regular objects using metric and customary units identifying the appropriate units for the object in question.

15.22 Derive simple formulas for determining volume of common shapes.

Standard 5

15.23 Compare and sort lengths and weights within and between metric and customary units selecting appropriate unit for various items introduced.

15.24 Understand difference and relationship between weight and mass: through experiments.

15.25 Investigate how changing dimensions of a figure affect perimeter, area and volume.

Standard 6

15.26 Solve problems involving perimeter, area, surface area and volume.