Instructional Video

# Unit Price

Curated and Reviewed by Lesson Planet

Extend an understanding of ratios and proportions to include unit rates. The video lesson compares two prices of different sizes using two methods. The instructor first calculates a unit price for each product and compares the costs. The second method shown uses a proportion to calculate the expected cost of a comparable size using the first cost.

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CCSS: Adaptable
##### Instructional Ideas
• Ask individuals to take pictures of costs of items of different sizes at a grocery store so they can analyze them
• Use board work with practice problems modeled after the problems in the video
##### Classroom Considerations
• Expects proficiency with ratios, proportions, and long division
• This video is hosted on YouTube
##### Pros
• Provides learners with different methods of solving the same problem
• Shows all work including the long division necessary to calculate the unit prices
##### Cons
• Does not relate the problem to a contextual situation, which diminishes the relevance