Today we begin a mini-unit on area, including some alternative methods of finding area, deriving formulas, and using some algebra and graphing of lines to start reviewing for Aspire.
We wrote descriptions of perimeter, area, and volume by looking at a photo of a fenced-in doggie area at a park.
We used a Geoboard app on Chromebooks to look at different polygons to find their area without a formula.
Some of the methods students used and described: area by composition (break into parts), area by counting squares, area by subtraction (surround with a bigger easy figure and subtract right triangles), and area by "sliding vertex" (maintaining base and height but getting an easier figure to look at).
Activities we did in class, along with answers, are attached.
We built notes on square dot paper about finding area of rectangles and parallelograms.
HW #1 was from old textbook, so it was a handout, attached below. Do all of the problems. Best to do in homework section of notebook. Show what you put in your calculator.
All tests should be made up by now. Tests will be seen during the next class.
40 pt quiz on Thurs-Fri, April 4-5.
We wrote descriptions of perimeter, area, and volume by looking at a photo of a fenced-in doggie area at a park.
We used a Geoboard app on Chromebooks to look at different polygons to find their area without a formula.
Some of the methods students used and described: area by composition (break into parts), area by counting squares, area by subtraction (surround with a bigger easy figure and subtract right triangles), and area by "sliding vertex" (maintaining base and height but getting an easier figure to look at).
Activities we did in class, along with answers, are attached.
We built notes on square dot paper about finding area of rectangles and parallelograms.
HW #1 was from old textbook, so it was a handout, attached below. Do all of the problems. Best to do in homework section of notebook. Show what you put in your calculator.
All tests should be made up by now. Tests will be seen during the next class.
40 pt quiz on Thurs-Fri, April 4-5.
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hw_1_-_area.pdf |