Christopher Columbus

Christopher Columbus
Born: October 31, 1451, Genoa
Died: May 20, 1506, Valladolid
Full name: Cristoforo Colombo

Henry Hudson

Henry Hudson was an English sea explorer and navigator in the early 17th century. Hudson made two attempts on behalf of English merchants to find a prospective Northwest Passage to Cathay via a route above the Arctic Circle.

Born: 1565, England
Died: 1611, Hudson Bay
Full name: Henry Hudson
Nationality: English, British

Did you finish Social Studies packet. DUE FRIDAY 12-7!!!!!

Polygons

Properties of Regular Polygons

Polygon

A polygon is a plane shape (two-dimensional) with straight sides. Examples include triangles, quadrilaterals, pentagons, hexagons and so on.

Regular

A "Regular Polygon" has: all sides equal and all angles equal. Otherwise it is irregular.

Regular Pentagon   Irregular Pentagon

Here we will be looking at Regular Polygons only.

Properties

So what can we know about regular polygons? First of all, we can work out angles.

Exterior Angle The Exterior Angle is the angle between any side of a shape, and a line extended from the next side.

All the Exterior Angles of a polygon add up to 360°, so: Each exterior angle must be 360°/n (where n is the number of sides) Press play button to see.

Example: What is the exterior angle of a regular octagon?

An octagon has 8 sides, so:

Exterior angle = 360°/n = 360°/8 = 45°

Adjacent Angles

Two angles are Adjacent if they have a common side and a common vertex (corner point) and don't overlap.

	Angle ABC is adjacent to angle CBD Because: they have a common side (line CB) they have a common vertex (point B)

What Is and Isn't an Adjacent Angle

These ARE Adjacent Angles they share a vertex and a side		NOT Adjacent Angles they only share a vertex, not a side		NOT Adjacent Angles they only share a side, not a vertex

Don't Overlap!

ALSO the angles must not overlap.

Math Test 1

Unit 3 Math Test on 12-6-12.

You should know that:

Type of Angle	Description
Acute Angle	an angle that is less than 90°
Right Angle	an angle that is 90° exactly
Obtuse Angle	an angle that is greater than 90° but less than 180°
Straight Angle	an angle that is 180° exactly
Reflex Angle	an angle that is greater than 180°

Good Information You Should Read

Read this:

1. View our website, www.room18online.blogspot.com
2. Go on our mobile website on your Android, iPod touch, iPhone, and other phones.

Welcome

Welcome to the Official Room 18 Website!!! 

Room 18 News November

GOOD BOOKS!!!!!!

Some other good books are:

Wringer by Jerry Spinelli

Current Readers: Tom, Alex, David, Adam

Harry Potter series by J.K. Rowling

Charlie and the Chocolate Factory by Roald Dahl

Frindle by Andrew Clemets

Falling In by Frances O’Rourk Dowell

Current Reader: Maggie

Percy Jackson Series by Rick Riordan

Current Reader: Adam 

You should be reading every night for at least 20 minutes. Record your number of minutes and pages read on your reading log. READ! READ! READ!!!!!!

Good books to read:

The Emerald Atlas by John Stephens. It is about three kids; Kate, Emma, and Michael. They together figure out that magic is real.

Current Reader: Ben

Because of Winn-Dixie by Kate DiCamillo

Winn- Dixie is adopted by India Opal Buloni. Together, they meet new friends.

Current Reader: Ryan and Class

Math

Students of room 18 have made up math problems to practice!!!

1: 73x87=                                                 2: 45x56=

3: bx7=42      b=?                                         4: 56x67=

Room 18 News October

Independent Study

While students are at chorus and band, the rest of the students who have not chosen to be in the chorus or band are doing an independent project called Independent Study. Some of the topics are knot tying, origami, and learning different languages like Italian.

Science

We just finished the unit on the Atmosphere. We are now learning how to track hurricanes with longitude and latitude coordinates.

Social Studies

In Social Studies we are learning about the world in the 1400’s. We just finished the Early Civilization unit based on the Aztecs, the Incas, and the Maya. You can make a cover for the packet for the world in the 1400’s packet for homework, whenever you want to. 

Math

In Math we are in Unit 2. It is about estimation; however we have been working on rounding. You can check the unit and lessons at www.everydaymathonline.com with your login and password. (See Page 2, “Everyday Math Online) 

Our School Website

The Donaghue School has a website on school loop. It is: http://hrd-pentucketrsd-ma.schoolloop.com/

Everyday Math online

If you go to www.everydaymathonline.com  with your login and password you can play games and practice math. You can also print out study links and read the SRB (Student Reference Book) which is already downloaded on the site.

CHECK HOMEWORK ON SCHOOL LOOP

You can check the assignments posted for homework at http://hrd-pentucketrsd-ma.schoolloop.com/cms/page_view?d=x&piid=&vpid=1243285903910

It will tell you the assignments and the due dates for homework.