Chapter 8.7 SURFACE AREA of PYRAMIDS

Good Evening to all,

Tonight's homework is very similar to last night's work.  We are looking at the SURFACE AREA of pyramids today.  

Surface Area is the total area of all the faces and bases 

of the pyramid.  

You must find the LATERAL SURFACE AREA- lateral face- 

of each face. 

 Another vocabulary word is SLANT HEIGHT.  This is the height of each lateral face. ( Make sure you define these words in your reference spirals. ) 

 To find the area of each face of a pyramid, you find the area of the triangle using the slant height.  Add all the faces along with the base for the surface area.

Another furball of fun.  This pup belongs to Georgia.  My heart is melting!

Homework: Watch the videos, take notes in your reference spirals.

Surface Area Vocabulary

SURFACE AREA Key Concept

Ex 1 page 679

EX 2 page 679

Ex 3 page 679

Ex 4 page 680

As always in MATH,

Mrs M

Chapter 8.6 Geometry: SURFACE AREA of Rectangle Prisms

Hi, today we are marching onward with SURFACE AREA of Rectangular Prisms.   

This takes in to account all of the math we have been talking about in the early sections of this chapter- 2-D figures use area and the 3-D figures use volume. 

 The surface area is the outer area- container- of the 3-D figure.  You find the area of each face- then find out how many of these sides you have- then add them all up to  find the SURFACE AREA.  

Somewhat tedious, but easy.

And here is Caitlin with her little ball of fur.  Milo is just 8 weeks old and follows Caitlin around everywhere she goes! 

OMW, what a little love bug! Good luck finding those ticks!!!!

Homework:  Read the blog, takes notes in your Reference Spiral and watch the videos!

Surface Area Vocabulary

EX 1 page 666 SURFACE AREA 

EX 2 page 667 SURFACE AREA

EX 3 page 668 SURFACE AREA 

As always in MATH,

Mrs M

Chapter 8.5 Volume of Pyramids GEOMETRY

And Good Evening everyone,

Today we are moving onto Volume of Pyramids. 

Just like volume of prisms, volume of pyramids is the space inside the 3-D figure.  Remember a prism maybe a cereal box and the volume of the box is the cereal inside??? Well, we have much the same with pyramids, but DIFFERENT! What is that difference????? This is a question you need to think about.

 Pyramids are named by the base shape (polygon).  So you could have a square pyramid if the base is a square- what would you call a pyramid with a triangle base? 

 The height of the pyramid is always from the tip of the vertex to the base and it forms a right angle. So be aware of looking for the height from inside the pyramid.  

The shortcut - formula - is volume= 1/3 BH  -

 why would it be that?

To think about this, you may recall that a triangular prism is half of a rectangular prism- so....

A Pyramid of GIRLS! 

Emma,Izzy, Elisabeth,Mariah,Isis,Georgia!

Homework: 8.5 VOLUME -Read the blog, take notes in your Reference Spirals and watch the videos on VOLUME of Pyramids!!!

Student Video

VOCABULARY

Ex 1 page 654

Ex 3 page 655

Ex 4 page 655

Ex 5 page 657

As always in MATH,

Mrs M

Chapter 8.4 Volume of Prisms- GEOMETRY

Hello, and finally, we are moving onward through Geometry again.  This lesson is on volume of prisms.  I want to review what a prism is and they are 3-D polyhedrons that have 2 bases, such as a box.  I hope that reminds you of prisms.  And today we add on to this knowledge and learn about Volume of prisms.  Volume is the space inside the 3-D figure.  It has a shortcut, formula, that can figure out that space, but let's look at the examples before looking at the formula. Check out the video link from Emma and she shows many prisms and then shows the volume of some. One example of volume is the cereal inside the cereal box or the milk inside the carton.  After glancing at the book, you will find the formula, so go ahead and enter this in your reference spiral.

Time to take a nap! Mariah's pup is so sweet.

Homework: Read the blog, take notes in your reference spiral and watch the videos for 8.4 VOLUME
Ex 1 page640
Ex 2 page 641
Ex 3 page 642
As always in MATH,
Mrs M

Chapter 8.3 Area of COMPOSITE Figures

Good Evening to all,

We are still plugging away in GEOMETY, specifically, AREA.  Area is all the "stuff" inside the shape and it is divided up into square units.  We talked and explored the area of circles and some of you found it odd that they cut up a circle into squares! We also talked about using formulas ( shortcuts) to find areas. In this lesson, we will be combining shapes and finding the areas of the whole shape, by finding the area of each shape.  Sounds tricky, but it should be easier after class today.

Meet Kiwi, Dalen's little doggie.  How sweet she looks.  

Homework: Read the blog, watch the videos and take notes in your reference spirals!
 AREA of COMPOSITE FIGURES
EX 1 page 632
EX 2 page 632
EX 3 page 633
EX 4 page 634

As always in MATH,
Mrs M

Chapter 8.2 AREA of Circles!!

Good Evening to all,

We continue working on GEOMETRY and specifically,

 the area of circles.  

These measurements come in handy with working with

circles and semicircles. 

 Area is the "stuff' inside the shape and you can find this by using a shortcut, or formula.  The area of a circle is A=π rˆ2.  Remember that Pi is generally estimated to be 3 or 3.14 or 22/7.  

This is our Advisory Picture for Spirit Week 

Homework: Read the blog and watch the videos and take notes ON 8.2 Area of Circles
Student Videos:
Student

Student
Student

TEACHER:
EX 1 page 624
EX 2 page 624
EX 3 page 625
EX 4 page 625
EX 5 page 626
BRING IN AN ARTIFACT ABOUT CHAPTER 8 - can be a trinket, magazine picture or such- anything that is an example of something from Chapter 8- GEOMETRY!
As always in MATH,
Mrs M

CHAPTER 8.1 Circumference

Hi,
It seems like such a long time since the last video time to me, what about you?  We are working on Geometry, particularly working with circles and all the vocabulary that goes with circles. I am certain that most of this material is review, but we will be building on this, so let's make this solid!!! The vocabulary that we are investigating in this lesson are: circle, center, circumference, diameter, radius, pi.  Make sure that you understand these and write them down in your Reference Spirals - meaningful definition and examples of each.  



Homework: Read the blog, watch the videos and take notes in your Reference Spiral.

This is a momma cat with her kittens- I am hoping to adopt the larger all white kitten soon. 

Jensyn, may be fostering these kitties soon.

Homework: Read the blog, watch the videos and take notes in your Reference Spiral.

Circle Vocabulary Words - Students

Chapter 8 Example 2 page 614-Student
Chapter 8 - Student
Circles- Student
TEACHER VIDEOS
Circles- ex 1 p. 614
Circles ex 2 p. 614
Circles ex 3 p. 615
Circles ex 4 page 616
Radius Circumference Diameter

As always in MATH,
Mrs M