Lessons and Tools for Teachers

#### Lessons for Ratios

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• Area and Volume of Similar Figures - … . 2. How does the ratio of surface areas compare to the ratio of edge lengths? Ratio of edge lengths Ratio of surface areas b … to Cube C Ratio of edge lengths Ratio of volumes d. How does the ratio of volumes compare to the ratio of edge lengths … . scale factor: ratio of surface areas: ratio of volumes: 2. scale factor: 8 cm 12 cm ratio of surface areas: ratio of volumes: 3 … scale factor: ratio of surface areas: 4. ratio of volumes: 5 in. 15 in. scale factor: ratio of surface areas: ratio of volumes: HSA …
User Rating: Grade Level: 9-12
• Understanding Ratios - … develop a conceptual definition of equality of ratios. A conceptual understanding of ratios and equality of ratios is needed before students are exposed … using any formal procedures for finding equivalent ratios. 6 Understanding Ratios Grade Five If the ratio of radial length to height is 1 … A, Post-Assessment Attachment B, Working with Ratios Attachment C, Ratio Mystery 9 Understanding Ratios Grade Five Attachment A Post-Assessment Name: ____ …
User Rating: Grade Level: 3-5
• Ratio and Proportion - … What do you notice? P: We can find ratios equivalent to other ratios by multiplying/ dividing both sides by the same number … 3 Ratio and UNIT 7 Proportion Lesson Plan 1 Equivalent Ratios Notes Equivalent ratios and simplest forms of ratios T: You can see some ratios … are ? = 60 Â°, ? = 80 Â°, ? = 80 Â° . Write them as a ratio, and them simplify the ratio. (60 : 80 : 80 = 6 : 8 : 8) T: Can … : So far in this unit we've dealt with ratios. When does the ratio of two things remain the same? (When the …
User Rating: Grade Level: 6-8
• Units of Measurements - … unit ratio. Example 1 A unit ratio is a ratio that is equal to 1. Any ratio of equal quantities is a unit ratio. Since … relationship between miles and inches. Example 2 A unit ratio is a ratio of equal quantities. So 1 mile and 63,360 … result is 1. So, the product of unit ratios is also a unit ratio. Changing Units To change a measurement from one … cups to write a unit ratio. 8. Use the unit ratio ?? to write a relationship between ratio that has fluid ounces and gallons …
User Rating: Grade Level: 9-12
• Structure and Mechanism - … 5.1_Velocity.cwk BLM 5.2 Velocity Ratio 5.2_velocity ratio.cwk BLM 5.3 Velocity Ratio Using Levers 5.3_Levers VR.cwk … ST 5 BLM 5.2 Velocity Ratio 5.2_velocity ratio.cwk ST 5 BLM 5.3 Velocity Ratio Using Levers 5.3_Levers VR … destination. What is its velocity? BLM 5.2 VELOCITY RATIO Velocity Ratio is the comparison of the distance a load force moves … moves (.5 cm); effort force moves (2 cm) velocity ratio=4 VELOCITY RATIO (Continued) Single fixed pulley------VR=1 Double fixed pulley …
User Rating: Grade Level: 6-8
• How Far Can You Leap? - … (6) 1. Understand the concept of a ratio, and use ratio language to describe a ratio relationship between two quantities. [6-RP1] MA2015 … (6) 1. Understand the concept of a ratio, and use ratio language to describe a ratio relationship between two quantities. [6-RP1] MA2015 … (6) 1. Understand the concept of a ratio, and use ratio language to describe a ratio relationship between two quantities. [6-RP1] MA2015 …
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• Thirsty for Ratios - … (6) 1. Understand the concept of a ratio, and use ratio language to describe a ratio relationship between two quantities. [6-RP1] MA2015 … (6) 1. Understand the concept of a ratio, and use ratio language to describe a ratio relationship between two quantities. [6-RP1] MA2015 … (6) 1. Understand the concept of a ratio, and use ratio language to describe a ratio relationship between two quantities. [6-RP1] MA2015 …
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• Geometry 3 - … .5 2 Some lengths of corresponding sides have ratio 1 and some have ratio 1.5. 26. In Figure 45, triangle SUM … ~ ?DOG The lengths of corresponding sides have the same ratio. So the ratio of LY to OG is also 4 to 3 … rectangle in the numerator.) How does the ratio of the perimeters compare to the ratio of the corresponding lengths? c. Sketch another … rectangle in the numerator.) How does the ratio of the perimeters compare to the ratio of the corresponding lengths? f. Look back …
User Rating: Grade Level: 9-12
• Proportional Reasoning - … the guidelines to determine the students' understanding of ratios. Adequate Provides correct ratio for each situation Understanding showing understanding of part-to … an algorithm for proportions, students need to compare ratios and predict or produce equivalent ratios. 1. Provide cubes of two different colors … students by identifying the ratio and how the ratio is expressed as a fraction. Explain that the equivalent ratio has to be expressed …
User Rating: Grade Level: 6-8
• This is to That - … for numbers or objects to be in a given ratio, and how ratios and fractions are related. Specific Learning Outcomes: find twice … fractions given fractions making a whole, find the relevant ratio Description of mathematics: Ratios, proportion, fractions are all related items that come … fractions. For more background on this topic of ratios see the Staff tutorials Basic Ratio, Exchange Rates, and Dinner in London. Required …
User Rating: Grade Level: 3-5
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