Content Area: Math

 

Index: 4.2D Grade 3 CPI 1

 

Standard: 4.2 - Geometry and Measurement

 

Strand: D - Units of Measurement

 

Cumulative Progress Indicator: 1 - The student will understand that everyday objects have a variety of attributes, each of which can be measured in many ways.

 

Grade: 3

 

Sample Activities:

 

·        Students find out how many inches long their hand is. The class then generates a graph showing the results.

 

·        Students use rulers to measure the length of the room in feet and inches and then in metric units.

 

·        Students move thermometers to different parts of the school, recording the temperature at each location. For example, it may be hot in the cafeteria and cold in the gym. They learn to identify appropriate reference points on both Celsius and Fahrenheit scales (e.g., 30 degrees Centigrade is a hot day).

 

·        Students investigate truth-in-packaging by reading labels, estimating weights, and then using balances to weigh foods.

 

·        Students investigate how many cups in a pint, how many pints in a quart, and how many quarts in a gallon by making lemonade and filling various sizes of containers.

 

·        Students make their own rulers, marking off intervals equal in length to one centimeter.

 

·        Students estimate and measure the distance around an object using a length of string which they then measure with centimeter cubes.

 

·        Students conduct experiments using timers: how many times can you bounce a ball, clap your hands, or blink your eyes in one minute? They discuss how many times each would occur in 10 minutes, in an hour, or in a day, if they continued at the same rate, and why their answers might be different.

 

·        Students measure all sorts of performances in their physical education class: the time it takes to run 100 meters, the length of a long jump in inches, and the length of a softball throw in meters.

 

·        Students read Time to . . . by Bruce McMillan. In this book about a farm boy and his daily activities, clock faces are always there to remind the reader what time it is.

 

·        Students use calculators to help them find out how many days old they are.

 

·        When going on a field trip, students determine how much time they will have available at a museum by considering when they will arrive and when they must leave.

 

·        Students use cubes to fill rectangular boxes of various sizes as they explore the concept of volume.