Presentation on theme: "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."— Presentation transcript:
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 121--------- 242--------- 3631 484--------- 605-------- 7262 Draw a Diagram 12 in. 1 ft. 1 yard1yd.
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
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