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# Perimeter and area revised

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### Perimeter and area revised

1. 1. Perimeter and Area By F. West
2. 2. ObjectivesStudents will understand the meaning of perimeter & areaand apply it in problems. GLEC Standards and BenchmarksM.UN. 03.05 II .3.23 grade math
3. 3. Learning Resources and MaterialsRulerGraph paper
4. 4. Methods and ProcedureThe teacher will introduce vocabulary, and demonstrate how tosolve perimeter and area problems.
5. 5. IntroductionStep 1. Activate Prior KnowledgeWhat do you know about perimeter and area?
6. 6. What is perimeter?The distance measured around an object.
7. 7. Look at the objects belowYou can use a ruler to measure shapes.
8. 8. Perimeter Use the graph paper to draw some triangles and measure them.
9. 9. PerimeterThe formula to solve a triangle is P = a+b+c
10. 10. PerimeterA B C
11. 11. Find the Perimeter10cm 10cm 8cm 8cm 10cm 8cm
12. 12. What is the area?The number of square units needed to cover a shape
13. 13. What is the formula to solve thearea of a triangle?A=½ hxb or A= hxb 26cm 4cm
14. 14. Area
15. 15. Find the Area 5cm 3cm 4cm 4cmArea = Area =
16. 16. Find the perimeterP= 2L+2W 55 5 5
17. 17. Find the Perimeter 5cm 11cm 5cm 11cm
18. 18. Find the AreaA=LxW 12 cm4cm
19. 19. AssessmentCompute the area, go tohttp://www.mathgoodies.com/lessons/vol1/area-triangle-part3.htmlCompute the perimeter and area of shapes, go tohttp://www.mathgoodies.com/lessons/vol1/perim_part3.html
20. 20. Resourceshttp://www.helpingwithmath.com/printables/worksheets/geo0601area02.htmhttp://www.mathgoodies.com/lessons/vol1/area-triangle-part2.htmlhttp://www.michigan.gov/documents/mde/3rd_Math_357689_7.pdfhttp://office.microsoft.com/en-us/images/?CTT=97