2.9a

2.9  The student directly compares the attributes of length, area, weight/mass, and capacity, and uses comparative language to solve problems and answer questions.  The student selects and uses nonstandard units to describe length, area, capacity, and weight/mass.  The student recognizes and uses models that approximate standard units (from both SI, also known as metric, and customary systems) of length, weight/mass, capacity, and time
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1.7a   Estimate and measure length using non-standard units such as paper clips or sides of color tiles	2.9a  Identify concrete models that approximate standard units of length and use them to measure length	3.11a  Use linear measurement tools to estimate and measure lengths using standard units
identify concrete models that approximate standard units of length use them (concrete models) to measure length identify—to recognize or establish as being a particular person or thing; verify the identity of use—to employ for some purpose; put into service; make use of

Activities:

• Construct your own rulers using one inch color tiles
• Choose reasonable tools to measure the length of objects around the room
• Discuss reasonableness for objects that are measured (Why does a smaller object take more to measure with than a larger object?)

Anchor Stations:

• Kim Sutton:  Measure the Path
• Let's Measure Packet of interactive activities
• Measure objects with 2 different units of measure and compare the lengths

Possible Test Questions: