Life of Volume

Apparently we did not really start by learning about volume. Today we actually finished up the surface area because we could not finish during our last class. First we learned the surface area for 5 different shapes using the formulas. The shapes on our worksheet are: cylinder, cone, sphere, prism, and pyramid. They are all different. I am so glad our Professor said we can use the formula sheet on the test and final that she made for us on surface area and volume.  

Then we learned the volume in a fun way. We got to use 4 nets, small plate, scissors, and rice. Then we were paired up with a partner.  The nets we made was for the cylinder,cone, prism, and pyramid.  So I started to cut out each nets and my partner put the tape to make the shape. The base  for all the shapes were opened because that was where we added the rice. With our plate we  poured the rice into the prism and repeat till full.  At last we recorded it and found the ratio. We did the same with the cylinder and cone.  Add the rice into the cone and fill it with rice and repeat till full. Here are the shapes we made but not filled with rice like we did in class. 


Volume Definition-The amount of 3-dimensional space an object occupies.   It's units are always "cubic."

Here is a small video I found to find the volume of a rectangular prism.

Few things + Pythagorean Theorem & Surface Area

We started with an activity in class today which was pretty fun!!  Professor Klassen said we were supposed to be in a group with at least 3 people.  She gave us a worksheet about circumference and area and said this is the best way children will learn to find circumference and area. Our professor gave us an example on what to do! Then we just followed directions with each object. One person from each group went and got all of these: long string which is not stretchy, ruler, and  5 different objects that we shared with each group:Lid,Pumpkin plate, Cup, Oats can, and Easy Button. In the worksheet we were supposed to use each item and find circumference and diameter while using the long string. Then measure it with the ruler. After that we had to record our answers by dividing the circumference and diameter to find the π.   Our 2^nd worksheet was based on Pythagorean Theorem. For this worksheet we used square centimeters. 

Here is some helpful definitions & few formulas to know while doing it! As well as finding the Pythagorean Theorem & Surface Area.

1) Circumference-It is the distance around the edge of a circle or a curved geometric figure.

2) Diameter- A straight line going through the center of a circle connecting two points on the circumference.

    * Remember to get the π you have divide       Circumference by the Diameter.

3) 2 formulas for circumference are C=πd and C= 2πr

4)  Pythagorean Theorem- The sum of the squares of the lengths of the sides of a right triangle is equal to the square of the length of the hypotenuse.

5) Formula for Pythagorean Theorem is a^2 + b^2=c^2 . 

Also a nice link to practice this formula Click here!!

  6) Surface Area- The extent of a 2-dimensional surface enclosed within a boundary. 

   7)The formula for surface area depends on the shape of the two-dimensional object. To practice this formula here is a small worksheet on square pyramids for the students and answers for the teachers!! Here you go!!

As well as a small worksheet on rectangular prism on surface area and  enjoy!!