Bài 25 Volume of a Cube- Thể tích hình lập phương

XEM VIDEO TẠI ĐÂY https://www.youtube.com/watch?v=Na7HO3OkWa0 Boys and girls , Ladies and gentlemen. Today  we will be finding the volume of a cube. First  we should probably talk about what a cube is . A  cube is basically a box that has six congruent or equal squares. So  all of the squares that form the cube are exactly the same. So  what do we mean by volume . So  here we have a three-dimensional object and this is really the first three dimensional...

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Bài 24 Volume - Rectangular Prisms - thể tích lăng trụ hình chữ nhật.

XEM VIDEO TẠI ĐÂY https://www.youtube.com/watch?v=E8tuMaDxgJM Volume is measured by how many cubic units it would take to fill a given space. The  cube shaded green is a cubic unit . The amount of cubic units it takes to fill a defined space is what we call volume . The shown geometric solid is a rectangular prism . To find the volume of any rectangular prism, we simply multiply the length times the width times the height . The length and the width of the rectangular prism are...

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Bài 23 Pie Chart-biểu đồ hình quạt

XEM VIDEO TẠI ĐÂY https://www.youtube.com/watch?v=Mqjtk4LFIlM LESSON 12 Pie chart . A  pie chart presents the data in the form of a circle that is divided into sections . Each section corresponds to a particular data value. The area of each section is proportional to the proportion of the category that section represents . Pie charts are primarily constructed for qualitative data where the relative size of each section depicts the percentage. So  here is an illustration...

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BÀI 22 : Convert Mixed Numbers to Improper Fractions – đổi hỗ số sang phân số không thực sự

XEM VIDEO TẠI ĐÂY https://www.youtube.com/watch?v=-kDdIwRakZs Converting mixed numbers to improper fraction . Let 's try and convert one and three fourths to an improper fraction. Let 's represent this in the form of squares . Now  let's try representing the squares as a fraction . Counter  the scraps. There  are seven fourths that is 7 over 4. So  1 and 3 fourths equals seven folds. To change a mixed number into an improper fraction . Multiply  the old...

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Bài 21 Improper Fraction- phân số không thực sự.

XEM VIDEO TẠI ĐÂY https://www.youtube.com/watch?v=5LvfYN5VUL4 Improper fractions. Improper  fractions have  the numerators that are larger than or equal to the  denominators.  11 / 4    5 over 5  and 13 / 2 are some improper fractions . Let 's look at an example. This hexagon has seven pieces . Hence  this fraction will be written as 7 over 6. So we see that the numerator is greater than the denominator ...

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BÀI 20 : Mixed Numbers – Hỗn số

XEM VIDEO TẠI ĐÂY https://www.youtube.com/watch?v=vJcbTXqFUIY Shh Mixed numbers . Fractions  are used to count a part of something. Mixed  numbers are used when you need to count whole things and parts of things at the same time . How  much of these squares is red. There  are three whole squares and one-fourth of another square. We  write it like this 3 1/4 and read it like 3 and 1/4 . It 's really 3 plus 1/4 but we don't put the plus in . This  is...

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BÀI 19 : FIND PERCENTAGES OF NUMBERS- TÌM TỶ LỆ % CỦA SỐ

XEM VIDEO TẠI ĐÂY https://www.youtube.com/watch?v=uRimkk9tsXI What is 10% of a million dollars. exactamente 10% is $100,000 . go gogo …  To find 10% of a million dollars, we simply move the decimal point one place to the left. If  we had 10 stacks of cash on a table and each stack was $100,000 ,we would have a million dollars.  one stack equals one tenth  which is $100,000. 10 / 10 would be all 10 stacks equals $1,000,000. wrote…… chut cha chut cha-ching...

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