October 30, 2009. By the end of this unit, students will be able to  Estimate and measure length in standard and metric units  Convert between inches.

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Presentation transcript:

October 30, 2009

By the end of this unit, students will be able to  Estimate and measure length in standard and metric units  Convert between inches feet and yards and compare various lengths  Use length to solve problems  Estimate and count to find perimeter and area of figures and real world objects

 Understand why area is measured in square units  Solve area and perimeter problems using different strategies  Understand how two different shapes can have the same area or the same perimeter.  Understand the difference between area and perimeter

 Use standard units to measure objects  Use perimeter and area to solve problems  Develop and use formulas to solve problems involving perimeters and areas of rectangles, including squares  Measure to the nearest ¼ inch and 1/8 inch

 Estimated measurements can sometimes be better used to solve a problem than exact measurements  Units of measurement are related  Different strategies can be used to find the perimeter of a shape

Vocabulary Centimeter (cm.) Inch (in.) Foot (ft.) Customary units used Yard (yd.) to measure length and Kilometer (km.) distance Mile (mi.) Meter (m.)

Vocabulary Ounce (oz.), Pound (lb.) – customary units used to measure weight Convert- to change something into another form. example: 12 in = 1 ft

Vocabulary Perimeter- the distance around a plane figure Area- number of square units needed to cover a flat surface Square unit- number of square unites needed to cover a flat surface

 Make a Table InchesFeetYards Draw a Diagram 12 in. 1 ft. 1 yard1yd.

Conservation 1432

 Perimeter surrounds the outside of a figure or shape. It is a one dimensional measurement expressed in single units.  Length +length+width+width  Area measures the amount of surface covered. It is a two dimensional measurement expressed in cubic units Length x width

 1,2,3 strategy  Example: The perimeter of a figure is 16 units. Draw 3 rectangles with the same perimeter.  Figure 1  Figure 2  Figure 3

Literature Connections  Happy Birthday, Sam by Pat Hutchins  Something Absolutely Enormous by Margaret Wild  The Hilton Hen House by Jo Hinchcliffe  Joseph's Overcoat by Simms Taback  Inch By Inch by Leo Lionni  The Very Busy Spider by Eric Carle