Course 1 Online!
Henrico County Public Schools, Virginia
Number and Number Sense

Computation and Estimation

Measurement and Geometry

Probability, Statistics, Patterns, Functions, and Algebra

SOL Review Materials
Number and Number Sense
Focus: Relationships among Fractions, Decimals, and Percents


The student will describe and compare data, using ratios, and will use appropriate notations, such as a/b, a to b, and a:b. 
Essential Knowledge and Skills
  • Describe a relationship within a set by comparing part of the set to the entire set.
  • Describe a relationship between two sets by comparing part of one set to a corresponding part of the other set.
  • Describe a relationship between two sets by comparing all of one set to all of the other set.
  • Describe a relationship within a set by comparing one part of the set to another part of the same set.
  • Represent a relationship in words that makes a comparison by using the notations a/b, a:b, and a to b.
  • Determine a ratio from a pictorial representation.
  • Create a relationship in words for a given ratio expressed symbolically.
Essential Understandings
  • What is a ratio? A ratio is a comparison of any two quantities. A ratio is used to represent relationships within a set and between two sets.   A ratio can be written using fraction form (2/3), a colon (2:3), or the word to (2 to 3).
Vertical Articulation
  1. SOL 7.4 - single and multistep practical problems with proportional reasoning
  2. SOL 8.3a - solve practical problems involving rational numbers, percent, ratios, and prop
Instructional Materials
  1. VDOE Enhanced Scope and Sequence Lesson: Field Goals, Balls, and Nets (PDF) - Using ratios to compare quantities (Word)
  2. Notes: Ratios (flipchart) - 23 slides on notes and practice of ratios
    1. Notes: Ratios - Shortened (flipchart) 13 slides on notes and practice of ratios
  3. Notes: Ratios (ppt) - video, notes, different types of examples, SOL review questions, websites
  4. Notes: Ratios #2 (ppt)
  5. Notes, Video, and Practice: Ratios (flipchart) -
  6. Notes: Ratios (doc)
  7. Activity: Ratio Foldable (doc)
  8. Infographic - World Percentages - If the world consisted of 100 people...
  9. VDOE Algebra Readiness Curriculum Companion: Working with Ratios and Proportions (pdf)
Real World Lessons
  1. Dan Meyer - Nana's Chocolate Milk - How do we fix Nana's chocolate milk?
  2. Mathalicious: As The World Turns - How fast is the world spinning, and is it the same everywhere?
  3. Mathalicious: Big Foot Conspiracy - Do people with small feet pay too much for shoes, and what would happen if Nike charged by weight?
Practice
  1. Notes, Video, and Practice: Ratios (flipchart) - practice problems, guided notes, and video reviewing ratios
  2. Worksheet: Ratio - Classroom Pets (doc) - 12 practice problems included word problems.
  3. Worksheet: Ratio Word Problems (pdf) - 10 ratio word problems
  4. Worksheet: Writing Ratios 3 Ways (doc)- 20 basic ratio picture problems
  5. Worksheet: Writing Ratios 3 Ways (doc) - 10 basic practice problems
SOL Mini Quiz
  1. SOL 6.1 Mini Quiz: Ratios (pdf)
Skills
  1. Ratios: Win-Loss Percentages (doc)
  2. Ratios: Pizza Party (doc)
Videos
  1. Notes, Video, and Practice: Ratios (flipchart)
  2. Spy Guys: Ratios (learnalberta)
  3. YouTube: Introduction to Ratios
  4. PH: Finding distances on maps using scale
  5. PH: Writing ratios in three ways
  6. PH: Writing equivalent ratios
Explore Learning
  1. Part:Part and Part:Whole Ratios: Compare a ratio represented by an area with its percent, fraction, and decimal forms.
  2. Polling: Neighborhood: Conduct a phone poll of citizens in a small neighborhood to determine their response to a yes-or-no question. Use the results to estimate the sentiment of the entire population. Investigate how the error of this estimate becomes smaller as more people are polled. Compare random versus non-random sampling.
Websites
  1. SoftSchools: Modeling Ratios Coloring Game
  2. SoftSchools: Ratio Game
  3. MathSlice: Ratios Worksheet
  4. Learn Alberta: Ratios
  5. Learn Alberta: Select Number - Rates and Ratios (Food)
  6. Wisc-Online: Ratios
  7. Arcademic: Ratio Stadium Game
  8. TeachersDomain: Lesson - Gears and Proportions
  9. Lanius: Interactive Notes - All About Ratios
  10. Math Is Fun: Ratios
  11. BrainGenie: Writing Ratios
  12. BrainGenie: Word Problems: Ratio, Parts, and Total
  13. BrainGenie: Equivalent Ratios
  14. MathSnacks: Ratio Rumble Game
VDOE Interventions
  1. VDOE Algebra Readiness Curriculum Companion: Working with Ratios and Proportions - The lessons focus on the meaning of ratios and proportions. Students practice writing ratios and build on their knowledge of ratios to work with proportions. Using proportional reasoning to solve practical problems is a common element in this section. (pdf)
Common Core Standards
6.RP.1
6.RP.2
6.RP.3a
6.RP.3d