Grade 3 - Shape and Space
Standard 3.SS.3 - Practice finding the appropriate length of various objects. Understand the approximate scale of different metric units.
Included Skills: Measurement
Demonstrate an understanding of measuring length (cm, m) by: • selecting and justifying referents for the units cm and m • modelling and describing the relationship between the units cm and m • estimating length, using referents • measuring and recording length, width and height. • Achievement Indicators: - 3SS3.1 Provide a personal referent for one centimetre, and explain the choice. - 3SS3.2 Estimate the length of an object, using personal referents. - 3SS3.3 Draw a line segment of a given length, using a ruler. - 3SS3.4 Sketch a line segment of a given length without using a ruler. - 3SS3.5 Provide a personal referent for one metre, and explain the choice. - 3SS3.6 Match a given standard unit to a given referent. - 3SS3.7 Show that 100 cm is equivalent to 1 m by using concrete materials. - 3SS3.8 Determine and record the length and width of a given 2-D shape. - 3SS3.9 Determine and record the length, width or height of a given 3-D object.