1. Bell Ringer – Throw Back Thursday I will not answer any questions about the Bell Ringer. This is from Notes Section 9.3
Multiply or Divide. Express your answer using exponents · (3n)(6n2) ÷ x7 ÷ x2

2. Starting New – Chapter 6 Section 6.1 - Ratios
R drive > Key > Feb 9_13 > 2_12__6.1 Ratios File > Save As > P drive > Math > Feb 9_13 > 2_12__6.1 Ratios

3. Vocabulary
Ratio – A comparison of 2 quantities by division

4. Notes
There are 3 different ways to write ratios. All three ways mean the same thing.
Use the word “to”
Use a colon
Use a fraction

5. Notes
Ratios can express part to part, part to whole, or whole to part relationships.

6. Example 1 Write Ratios in Simplest Form
Express the ratio 12 baskets in 18 attempts as a fraction in simplest form. Explain its meaning.

7. Example 2 Write Ratios in Simplest Form
Express the ratio of the life span of a bottlenose dolphin to the life span of a mouse as a ratio in simplest form. Explain its meaning.

8. Example 3 – Your Turn Write Ratios in Simplest Form
Express the ratio 10 roses out of 12 flowers as a fraction in simplest form. Explain its meaning.

9. Example 4 Write Ratios as Fractions
Ten out of every 30 Americans own a portable MP3 player. Express this ratio as a fraction in simplest form. Explain its meaning.

10. Example 5 Write Ratios as Fractions
15 out of 100 campsites at a campground are reserved for campers with pets. Express this ratio as a fraction in simplest form. Explain its meaning.

11. Example 6 – Your Turn Write Ratios as Fractions
A store found that 25 out of 35 people shopping there were women. Express this ratio as a fraction in simplest form. Explain its meaning.

12. Notes
When writing a ratio involving measurements, both quantities should have the same unit of measure.

13. Example 7 Write Ratios as Fractions

14. Example 8 Write Ratios as Fractions
Express the ratio 15 inches to 1 foot as a fraction in simplest form.

15. Example 9 – Your Turn Write Ratios as Fractions
Express the ratio 21 inches to 2 yards as a fraction in simplest form.

16. Conversion Units
3 feet = 1 yard 16 ounces = 1 pound 4 quarts = 1 gallon 12 inches = 1 foot

17. Homework Section 6.1 #1-23

18. Homework Section 6.1 #1-23

19. Homework Section 6.1 #1-23

20. Homework Section 6.1 #1-23