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Basic ratios
Representing-ratios 256
Description
Exercise Name: Basic ratios
Math Missions: 6th grade (U.S.) Math Mission
Types of Problems: 3

The Basic ratios exercise appears under the 6th grade (U.S.) Math Mission. This exercise practices many alternative ways to represent ratios.

Types of Problems

There are three types of problems in this exercise:

  1. Pick the picture: This problem provides a set of pictures or number lines that may represent a given ratio. The user is asked to select that number line or picture that is the best representation.
    Rr1

    Pick the picture

  2. Select all statements: This problem provides a diagram or situation depicting a ratio problem. Users are asked to select all of the options that represent the same idea as the image or situation.
    Rr2

    Select all statements

  3. Answer question: This problem asks a question directly related to a given ratio. The user is asked to answer the question in the available spot.
    Rr3

    Answer question

Strategies

This exercise is hard to get accuracy badges because of the subtlety in the questions (although all are fairly basic). The speed badges are probably easy if the user can get into the habits, but the primary researcher is finding them hard because of the difficulty getting them right in a row.

  1. On Pick the picture the correct picture (when it is in blocks) seems to always be a rectangular picture as opposed to the more exotic pictures like circles and pentagons in the harder fractional exercises.
  2. The units do change from given to problem to selection, so be very careful when making user's selections.

Real-life Applications

  1. Rates and ratios are prevalent in much of the sciences, such as stoichiometry.
  2. Several of the problems in this exercise can be viewed as real-life applications.
  3. Comparing unit rates is useful for anyone that has to shop to buy food items for their household.

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