PowerPoint Presentation

M & M Ratio Activity/ Chapter 8/Flashlight ActivityMA.912.G.2.2MA.912.G.3.48.1 Ratio and ProportionMA.912.G.2.2MA.912.G.3.48.1 Ratio and Proportion8.1 Ratio and ProportionThe perimeter of a rectangle ABCD is 60 centimeters. The ratio of AB : BC is 3:2. Find the length and width of the rectangle.

8.1 Ratio and ProportionThe perimeter of a rectangle ABCD is 60 centimeters. The ratio of AB : BC is 3:2. Find the length and width of the rectangle.Solution: Because the ratio of AB : BC is 3:2, you can represent the length AB as 3x and the width BC as 2x.2l + 2w = P (formula for perimeter)2(3x) + 2(2x) = 606x +4x = 6010x = 60X = 6So, ABCD has a length of 18 centimeters and a width of 12 centimeters.8.1 Ratio and Proportion8.1 Ratio and Proportion8.1 Ratio and Proportion8.1 Ratio and ProportionHomework: Page 461 10-16, 26-28, 34-46 even

Steps to the activity

Open your package of M & MsSort all your colored M & MsCount each color separately and record the amount on your piece of paperCount the TOTAL number of M & Ms and record that amount

Lets Begin Write the answer to all the ratios as a fraction, using a colon, and the word to.Example: What is the ratio of blue M & Ms to red M & Ms (In my bag: blue= 4 And red= 8)4/8 = , 1:2 or 4:8, 1 to 2 or 4 to 8

Now answer the following: What is the ratio of green M & Ms to yellow M & MsWhat is the ratio of blue M & Ms to Red M & MsWhat is the ratio of brown M & Ms to the total number of M & Ms

Ready for some more?What is the ratio of green and red M & Ms to the total of M & MsRecord the ratio of blue M & Ms to the total number of yellow and orange M & MsRecord your favorite color of M & Ms to the total number of M & Ms (You must write down your favorite color)

Need just a little more practice.Record the ratio of orange M & Ms to green and yellow M & MsWhat is the ratio of your least favorite M & Ms to the total M & Ms My favorite color is green. What is the ratio of my favorite color & your favorite color of M & Ms to the total number of M & Ms

Are you getting hungry?Create a table showing your color of M & Ms and the amounts

You are almost finished!Please put your name on your paperNow you may eat your M & Ms!!!!!I hope you had fun with ratios

8.3 Similar PolygonsMA.912.G.3.48.3 Similar PolygonsSimilar Polygons the correspondence between two polygons such that their corresponding angles are congruent and the lengths of corresponding sides are proportional.Scale Factor the ratio of the lengths of two corresponding sides of similar polygons.8.3 Similar Polygons8.3 Similar PolygonsHomework: Page 476 8-42 even8.4 Similar TrianglesMA.912.G.3.48.4 Similar TrianglesPostulate 22 Angle Angle Similarity PostulateIf two angles of one triangle are congruent to two angles of another triangle, then the two triangles are similar.

If JKL = XYZ and KJL = YXZ, then JKL ~ XYZ8.4 Similar Triangles Homework: Page 484 18-26, 34-46 even8.5 Proving Triangles are SimilarMA.912.G.3.48.5 Proving Triangles are Similar8.5 Proving Triangles are Similar8.5 Proving Triangles are SimilarHomework: Page 492 6-26 even8.6 Proportions and Similar TrianglesMA.912.G.3.48.6 Proportions and Similar Triangles8.6 Proportions and Similar Triangles8.6 Proportions and Similar Triangles8.6 Proportions and Similar Triangles8.6 Proportions and Similar TrianglesHomework: Page 502 12-30 evenEnd of Chapter ReviewHomework: Page 519 1-18