Hunting Treasure and Measuring - Part 2

Exploring various modes of measurements and standard units for them.

Objectives

 * Develops the ability to obtain accurate measurements and communicate those measurements is a key requirement for progress.
 * Standardized measuring units ensure uniformity in measurements.

Estimated Time
1 hour

Prerequisites/Instructions, prior preparations, if any

 * 1) The students should have been introduced to the concept of formal measurements by conducting an activity on using standard measuring instruments.
 * 2) They should understand the importance of standard measurements and distinction between standard and non-standard units of measurements.
 * 3) They should be well versed with standard units and sub units.
 * 4) They should know unit conversions.
 * 5) They should have the skill of measuring and recording accurately.
 * 6) They should be aware that comparisons can be made only between similar measuring units.

Materials/ Resources needed
Non digital:
 * 1) Weighing pan with measures of 1 kg, 500gm, 250gm and 100gm and 50gm.
 * 2) Digital scale
 * 3) Postal scale.
 * 4) Measuring cans of 1 litre, 500ml, 250 ml, 100ml,
 * 5) Measuring tape, Ruler.
 * 6) Watch or stop clock.
 * 7) Paper and pen.

Process (How to do the activity)

 * 1) The idea here is to include several measuring units for practice.
 * 2) Initially instruct the students regarding the activity and its purpose.
 * 3) Group students into 3 in each.
 * 4) The teacher shall make packets of things as treasure and hide them in the school premises.
 * 5) The students shall pick chits containing clues to hunt and find the packets.
 * 6) 30 minutes is given to search.
 * 7) The students search packets and come back to classroom.
 * 8) The packets may contain cloth, ribbons, ropes, water, fruits, ingredients, vegetable , books , juice, stamps,envelops or any such measurable items.
 * 9) The students have to quickly decide which measuring mode they are going to use, measure and record their findings.
 * 10) They also have to measure the distance at which they found each and record the time taken to search.
 * Developmental Questions
 * 1) What treasures did they find ?
 * 2) At what distance did they find ?
 * 3) How much time did they take to find ?
 * 4) What measuring instruments did they use ?, why ?
 * 5) How will they tabulate their results ?
 * 6) Can you list the purpose of each ?
 * Evaluation
 * 1) What are standard the units of length ?
 * 2) What are the standard units of weight ?
 * 3) How are liquids measured ?