Slide 1

5 Minute Check 1. Write 0.85 as a fraction. 2. Write 0.634 as a fraction. 3. Write 6.645 as a fraction. 4. Write as a decimal. 5. Write as a decimal. 6. Write as a decimal. Slide 2 5 Minute Check 1. Write 0.85 as a fraction. 2. Write 0.634 as a fraction. 3. Write 6.645 as a fraction. 4. Write as a decimal. 5. Write as a decimal. 6. Write as a decimal. Slide 3 5 Minute Check 1. Write 0.85 as a fraction. 2. Write 0.634 as a fraction. 3. Write 6.645 as a fraction. 4. Write as a decimal. 5. Write as a decimal. 6. Write as a decimal. Slide 4 5 Minute Check 1. Write 0.85 as a fraction. 2. Write 0.634 as a fraction. 3. Write 6.645 as a fraction. 6 4. Write as a decimal. 5. Write as a decimal. 6. Write as a decimal. Slide 5 5 Minute Check 1. Write 0.85 as a fraction. 2. Write 0.634 as a fraction. 3. Write 6.645 as a fraction. 6 4. Write as a decimal..55833 5. Write as a decimal. 6. Write as a decimal. Slide 6 5 Minute Check 1. Write 0.85 as a fraction. 2. Write 0.634 as a fraction. 3. Write 6.645 as a fraction. 6 4. Write as a decimal..55833 5. Write as a decimal..992 6. Write as a decimal. Slide 7 5 Minute Check 1. Write 0.85 as a fraction. 2. Write 0.634 as a fraction. 3. Write 6.645 as a fraction. 6 4. Write as a decimal..55833 5. Write as a decimal..992 6. Write as a decimal..5211143046650 Slide 8 Monday, Sept 23 Inquiry Lab Model Percents Slide 9 Objective: To use models to illustrate the meaning of percents. Slide 10 Model Percents Slide 11 A 10 x 10 grid can be used to represent hundredths. It can also represent percents. The word percent (%) means one out of a hundred. For example, 50% means 50 out of a 100. Slide 12 Model Percents Use a 10 x 10 grid to model 36%. Slide 13 Model Percents Use a 10 x 10 grid to model 36%. What percent does each tile represent? Slide 14 Model Percents Use a 10 x 10 grid to model 36%. What percent does each tile represent? 1% In a 10 x 10 grid there are 100 tiles and each tile represents 1%. Slide 15 Model Percents Use a 10 x 10 grid to model 36%. How many tiles would it take to show 36%? Slide 16 Model Percents Use a 10 x 10 grid to model 36%. How many tiles would it take to show 36%? 36 tiles Slide 17 Model Percents Model 18% with a 10 x 10 grid. Slide 18 Model Percents Model 18% with a 10 x 10 grid. How many tiles need to be shaded? Slide 19 Model Percents Model 18% with a 10 x 10 grid. Since each tile is 1%, then 18% would be 18 tiles. Slide 20 Model Percents How would you use a 10 x 10 grid to represent 110%? Slide 21 Model Percents How would you use a 10 x 10 grid to represent 110%? Since 110% is between 100% and 200%, you would need two 10 x 10 grids. Slide 22 Model Percents Percents can also be modeled with bar graphs. The entire bar represents 100%. The bar diagram below is divided into 10 equal sections, each representing 10%. How much is the shaded region worth? Slide 23 Model Percents Percents can also be modeled with bar graphs. The entire bar represents 100%. The bar diagram below is divided into 10 equal sections, each representing 10%. How much is the shaded region worth? Slide 24 Model Percents Model 60% with a bar diagram. When modeling with a bar graph, the number of sections in the bar must be a factor of 100% and whatever the percent you are trying to represent. Slide 25 Model Percents Model 60% with a bar diagram. Each section is worth how many percent? Slide 26 Model Percents Model 60% with a bar diagram. Each section is worth how many percent? 20% How many sections should be shaded? Slide 27 Model Percents Model 60% with a bar diagram. Slide 28 Model Percents With a partner and complete page 99 and 100. Write the answers in both math books. Slide 29 Model Percents Agenda Notes No Homework Complete In Class Practice 2-1 Due at the end of class or Tuesday, Sept 24