Math Unit 2 Test Study

Equivalent Ratios

• Equivalent ratios are different numbers representing the same part of a whole. They have different numerators and denominators, but their fractional values are the same.
• 6th grade math Equivalent Ratios (Embed)

Number Lines and Ratio Tables

• 6th Grade- Solving Ratio Problems with Tables, Double Number Lines, and Tape Diagrams (Embed)
• Double Number Lines are 2 parallel number lines.
• - One line is for each quantity in the ratio and a scale on each line (tick marks) so equivalent ratios lining up vertically
• - A good choice when it helps to visualize how far apart numbers are from each other. They are harder to use with very big or very small numbers.
• Ratio tables are tables that organize info into horizontal rows and vertical columns. The first row/column usually tells what the numbers represent
• - Tables work well in almost all situations.

Tape Diagrams

• Tape Diagrams are groups of rectangles put together to represent a relationship between quantities
• shows us part of a whole/fraction of a whole
• Most likely to be helpful when the parts of the ratio have the same kind of units and the sum of the quantities is meaningful in the context
• Tape diagrams allow students like me to approach more complex problems that involve comparing ratios of 3 items. This would be more difficult to solve without the use of a tape diagram, but with a tape diagram the structure of the problems can be visualized and, sometimes, the solutions are readily available.
• Intro to Tape Diagrams (Embed)
• Caption: This video introduces tape diagrams and how they are involved with ratios.