A Reference Tool:  Finding the area of a triangle, square, and parallelogram

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Multimedia Details Title: A Reference Tool:  Finding the area of a triangle, square, and parallelogram
Creator: Rebecca Petty Enrichment Students
Submitted By: Tonya Petty, Hale County Board Of Education, Hale County
School/Organization:

Greensboro Middle School

Hale County School System


Overview:

This Podcast will be used as a reference tool. Students can refer to this tool to refresh their knowledge on how to find the area of a triangle, square, and parallelogram.


Length: 3:45
Aligned to the following ALEX lesson plan: A Reference Tool:  Finding the area of a triangle, square, and parallelogram
Content Areas: Math
Alabama Course of Study Alignments and/or Professional Development Standard Alignments:
MA2015 (5)
14. Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction. [5-NF4]
a. Interpret the product (a/b) x q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a x q ÷ b. [5-NF4a]
Example: Use a visual fraction model to show (2/3) x 4 = 8/3, and create a story context for this equation. Do the same with (2/3) x (4/5) = 8/15. (In general, (a/b) x (c/d) = ac/bd.)
b. Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas. [5-NF4b]
MA2015 (6)
21. Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; apply these techniques in the context of solving real-world and mathematical problems. [6-G1]


National/Other Standards:

Demonstrate computational proficiency, including a conceptual understanding of numbers, ways of representing number, relationships among number and number systems, and meanings of operations.