Units Three and Four
Unit 3: Linear Measures and Area
The first three lessons of Unit 3 have students define units of measure by pacing off distances, creating a common unit for the class based on averages and then using US customary and metric units to measure lengths. The remainin lessons of Unit 3 extend work on perimeter and area begun in previous grades. They also begin exploring the value of pi by exploring the relationship between diameter and circumference. Unit 3 has four main areas of focus:
~explore the need for standard units of measure
~measure lengths using customary and metric units
~develop the concept of area
~investigate the relationship between diameter and circumference
~explore the need for standard units of measure
~measure lengths using customary and metric units
~develop the concept of area
~investigate the relationship between diameter and circumference
Unit 4
3.1 "A Class Shoe" Unit of LengthDiscuss the need for standard units of measure and to guide children as they create a unit of length (class shoe) and measure with it.
3.2 Measuring with a RulerChildren measure line segments to the nearest inch, half-inch, quarter-inch, centimeter, half-centifmeter and millimeter.
3.3 Standard Linear Measures3.4 Perimenter3.5 Pattern Block Toss Experiment3.6 Exploring Perimeter and Area3.7 Area3.8 Number Models for Area3.9 Diameter and Circumference3.10 Progress Check 3 |