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## MAP Recommended Practice

### Course: MAP Recommended Practice>Unit 17

Lesson 3: Visualize ratios

# Ratios with tape diagrams

In the video, we explore ratios, which compare two quantities. We learn to find missing values using given ratios and discover equivalent ratios by multiplying or dividing both parts by the same number. Key examples include quilts, paint mixtures, and spells cast by characters.

## Want to join the conversation?

• How do people use tape diagrams? What even ARE tape diagrams? 🤔🧐
(1 vote)
• Hey Kendra! Tape diagrams are visual models that use rectangles to represent the parts of a ratio. Since they are a visual model, drawing them requires attention to detail in the setup. In this problem David and Jason have numbers of marbles in a ratio of 2:3. This ratio is modeled here by drawing 2 rectangles to represent David’s portion, and 3 rectangles to represent Jason’s portion. The rectangles are uniform in size and lined up, e.g., on the left hand side, for easy visual reference. The large bracket on the right denotes the total number of marbles David and Jason have (35). It is clear visually that the boys have 5 rectangles worth of marbles and that the total number of marbles is 35. This information will be used to solve the problem. Hope this helps.
• I don't get it when I do the steps it says I have the wrong answers in my questions what do I do?
• Use the hints and compare your result to what is in the hint. See what was done differently - that's likely where your error is.
• Is this basically like using LCD ( least common denominator)?
• i think its like GCF
• I have been stuck here for 40 hours now. please help me. I don't get ratios at all is there easier to do this?
• Ratios are numbers that are comparing to each other for example, ¨For every 2 lbs of black paint, you have 4 lbs of white paint or 2:4.
Hope this helps. :)
• IDK what Sal means from
Somebody help!🆘
• basically you divide
• they have a question on harry potter in the vid
• i need help with ratios tape diagrams
• What do you need help with?
• i understand when i watch the video but when i go to do the ACTUAL problem that i have to do its so confusing, can someone explain to me (the video) pleasee.
• I will answer the second one. So the starting ratio is 4 to 5 because Luna has 4 squares and Ginny has 5 so for every 4 that Luna has Ginny has 5. So if Luna casts 20 spells that means she did 4x5 with her 4. And just like multiplying fractions you have to do the same thing with the other number. So that means you multiply 5x5 for Ginny making her new number 25 so that means the new ratio is 20 to 25.