Math Games

Grade 2 - Shape and Space

Standard 2.SS.1 - Add and subtract metric units of length up to 100 with word problems.

Included Skills:

Demonstrate understanding of non-standard units for linear measurement by:
• describing the choice and appropriate use of non-standard units
• estimating
• measuring
• comparing and analyzing measurements.
• Defend the choice of a non-standard unit for measuring a length in a situation relevant to one's self, family, or community.
• Estimate a personally relevant length, including the distance around a space, using one's own choice of standard unit.
• Compare estimates of the same length made by different units and provide reasons for different values being stated for the measurements.
• Critique the statement "It is possible to get an exact length measurement".
• Devise and apply strategies for determining estimates for linear and non-linear lengths using non-standard units.
• Explain why overlapping or leaving gaps does not result in accurate measurements.
• Explain why the same non-standard unit should be used to determine length measurements that are to be compared.
• Compare and order sets of related objects, possibly including people, according to a length measurement.