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Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large–from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine (“It’s good for you!”), it’s at the core of everything that exists–including you. Having said all that, some of the specific topics we’ll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That’s a lot. To summarize: it’s difficult to imagine any area of math that is more widely used than geometry.

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Could you maybe post one or two videos a day? I appreciate that you are putting out so much content but I cannot watch it all and it is clogging up my sub box. I do understand that math is very diverse and that you are trying to cover every concept in existence. Although your videos are very helpful, it has become hard to find other videos among the Khan Academy ones.

3 people don’t like math I see.

he repeats a word like 10 times lol

helped me a lot thank you

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Decompose fractions

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Compare fractions with different numerators and denominators

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Compare fractions with different numerators and denominators

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Order fractions

Practice ordering 3 fractions from least to greatest.

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Add and subtract mixed numbers 2

Practice adding and subtracting mixed numbers with common (like) denominators. Some items require regrouping.

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Angles in circles

Practice measuring angles using a circle protractor, solve word problems about angles as part of a circle.

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Common denominators

Practice rewriting fractions to have the same denominator.

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Common fractions and decimals

Practice converting between the fraction and decimal form of common numbers like 0.5 or 3/4.

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Area & perimeter of rectangles word problems

Find the missing side length of a rectangle when given its perimeter or area. Compare perimeters and areas of rectangles.

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Compare fractions and mixed numbers

Practice comparing fractions and mixed numbers that have unlike denominators.

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Multiply 2-digits numbers with area models

Use an area model to decompose factors and multiply.

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Interpret dot plots with fractions 1

Create and interpret dot plots using data with fractions. Fraction operations include addition and subtraction.

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Categorize quadrilaterals

Classify and compare rectangles, rhombuses, and squares.

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