LENGTH LENGTH is how long or how far away something is.
POINTS TO BE DISCUSSED
INTRODUCTION
1.Draw two lines Which one is longer? 2.
Which pillar is longer and which pillar has same length as above pillar?
Call 6 students and make them stand in a line according to their height.Now call one more student and ask where she should stand?
Announcement of Topic To find accurate length of things it is important to measure them.so we will study about Measurement of Length
Explanation To find length of different objects with Palm – length of blackboard Foot –length of classroom Wooden stick Here wooden sick is standard unit of length here. So to eliminate error in measurement we use standard units Standard unit of LENGTH is METRE This Photo by Unknown author is licensed under CC BY-NC .
Measuring using Ruler
Common Units
PUZZLES Sunny draw a line and ask his friend to make it shorter without erasing it. What weighs more – a kilo of blueberries or a kilo of feather?
ACTIVITIES
Conversion of Units
MNEMONICS King Kangaroo Kele KILOMETRE Henry Hopping H HECTOMETRE Died Down Dukaan DECAMETRE UNIT Mountain M METRE Drinking Drinking Dukaan DECIMETRE Chocolate Chocolate Se CENTIMETRE Milk Milk Mangwao MILLIMETRE
Common Errors WRONG CORRECT 7m 2cm = 72 cm 7m 2cm = 700 cm + 2 cm = 702 cm