Math

Ratios & rates

Name: Ratios & rates
Genre: Math
Released: 2022-11-30
Rating: 0

Math

A ratio is a comparison of two numbers (or quantities) using division. For example, if I have 4 hearts and 3 stars, then the ratio of hearts to stars is 4:3 (four to three). We can often "translate" between ratio language and fraction language. Lastly I work several word problems that involve ratios and fractions, using a bar (or block) model, a powerful visual aid that helps students from grade 4 onward solve problems that would otherwise require algebra.

Year

2022

Duration

42m

IMDb

Episodes

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Comments

10 comments

@love3Oct 22, 2025

In this problem, we're given the aspect ratio of a rectangle as being 5:3, and its perimeter as 4 inches. The task is to find the side lengths and the area. This involves fraction division and multiplication.

Mahdi KhaldiOct 22, 2025

Efrata YohannesOct 22, 2025

The aspect ratio is simply the ratio of a rectangle's width to height (or length to height). In this lesson, I solve several word problems involving aspect ratio. I use the bar model, visual models, and simple equations to help. This video is part of Math Mammoth 6th grade curriculum - learn more and download samples here: Find more 6th grade math videos:

RaywinnRaynardOct 22, 2025

HildeOct 22, 2025

In this second part, we tackle two word problems more. The first one involves a ratio and a difference between two quantities. The second one involves fractional parts, a change in the situation, and a given ratio. The first part of the lesson can be found here:

neodorisOct 22, 2025

moliehi MaleboOct 22, 2025

I solve two word problems that involve ratios, each time with the help of a bar model or diagram - Singapore Math style. The bar or block model is incredibly helpful for these situations and makes the problem solving a breeze.

SARZOct 22, 2025

Nigist TadesseOct 22, 2025

A set of equivalent rates, such as a set of times & distances when someone goes with a constant speed, gives us a set of NUMBER PAIRS which we can then plot as points on the coordinate plane. We end up with points that look like they're on a LINE... (line - LINEAR - it's a linear relationship).In this video, we first plot a set of equivalent rates having to do a boy riding a bicycle with constant speed. Then we plot TWO sets of equivalent rates - prices per kg - and compare them. (CCSS 6.RP.A.3.a) See the first part of this lesson (about equivalent rates) at This video corresponds to Math Mammoth Grade 6 curriculum; see

Lerato Mothepu MolotOct 22, 2025

Ratios & rates

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