Geometry



An angle measures the amount of turn

As the Angle Increases, the Name Changes:
 less than 180° ||^  ||
 * ~ 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
 * [|Straight Angle] || an angle that is 180° exactly ||^  ||
 * [|Reflex Angle] || an angle that is greater than 180° ||^  ||



 This diagram might make it easier to remember: Also: **Acute, Obtuse** and **Reflex** are in alphabetical order. || ||
 * === In One Diagram ===

Shmoop video

UFO Attack



Tank angle Attack!





[|Lots of angle games here!]

BBC



Alien angles



Project Trig

Tangled Web



Pyramid Panic!





Math Lab

1. Do the step by step first (all parts). Then test yourself.

 2. Measure 10 angles and get as close as possible. I will check your score when you are done.



3. Banana Hunt



4. Angle Kung Fu-just play this. Be careful, some angles are more than 180 degrees.

Two-Dimensional Figures =Polygons =

Is it a Polygon?
<span style="font-family: Verdana,Arial,Tahoma,sans-serif; font-size: 15px;">Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is "closed" (all the lines connect up). (straight sides) || **Not** a Polygon (has a curve) || **Not** a Polygon (open, not closed) ||
 * [[image:http://www.mathsisfun.com/geometry/images/pentagon-irregular.gif width="110" height="100"]] || [[image:http://www.mathsisfun.com/geometry/images/pentagon-not.gif width="110" height="100"]] || [[image:http://www.mathsisfun.com/geometry/images/pentagon-not2.gif width="110" height="100"]] ||
 * **Polygon**

<span style="background-color: #00ffff; display: block; font-family: Verdana,Arial,Tahoma,sans-serif; font-size: 15px;"> **Polygon** comes from Greek. **Poly-** means "many" and **-gon** means "angle".

<span style="color: #6600cc; font-family: Verdana,Arial,Tahoma,sans-serif; font-size: 18px;">Regular or Irregular
<span style="font-family: Verdana,Arial,Tahoma,sans-serif; font-size: 15px;">If all angles are equal and all sides are equal, then it is **regular**, otherwise it is **irregular**
 * [[image:http://www.mathsisfun.com/geometry/images/pentagon-regular.gif width="110" height="100"]] ||  || [[image:http://www.mathsisfun.com/geometry/images/pentagon-irregular.gif width="110" height="100"]] ||
 * Regular ||  || Irregular ||

<span style="font-family: &#39;Comic Sans MS&#39;,cursive; font-size: 200%;">Shmoop Polygon shoot



Polygon or not?









Quadrilateral Warfare





<span style="color: #4f37e0; font-family: Impact,Charcoal,sans-serif; font-size: 200%;">[|Classifying Polygons]

<span style="font-family: &#39;Arial Black&#39;,Gadget,sans-serif; font-size: 200%;">Triangles

<span style="color: #993300; font-family: qarmic,Verdana,sans-serif; font-size: 20px;">Equilateral, Isosceles and Scalene
<span style="font-family: Verdana,Arial,Tahoma,sans-serif; font-size: 15px;">There are three special names given to triangles that tell how many sides (or angles) are equal.

<span style="font-family: Verdana,Arial,Tahoma,sans-serif; font-size: 15px;">There can be **3**, **2** or **no** equal sides/angles:


 * [[image:http://www.mathsisfun.com/images/triangle-equilateral.gif width="150" height="106" caption="Equilateral Triangle"]] || === Equilateral Triangle ===
 * Three** equal sides


 * Three** equal angles, always 60° ||
 * [[image:http://www.mathsisfun.com/images/triangle-isosceles.gif width="149" height="127" caption="Isosceles Triangle"]] || === Isosceles Triangle ===
 * Two** equal sides


 * Two** equal angles ||
 * [[image:http://www.mathsisfun.com/images/triangle-scalene.gif width="150" height="63" caption="Scalene Triangle"]] || === Scalene Triangle ===
 * No** equal sides


 * No** equal angles ||

<span style="color: #993300; font-family: qarmic,Verdana,sans-serif; font-size: 20px;">What Type of Angle?
<span style="font-family: Verdana,Arial,Tahoma,sans-serif; font-size: 15px;">Triangles can also have names that tell you what **type of angle** is inside//://

All angles are less than 90° || Has a right angle (90°) || Has an angle more than 90° ||
 * [[image:http://www.mathsisfun.com/images/triangle-acute.gif width="150" height="82" caption="Acute Triangle"]] || === Acute Triangle ===
 * [[image:http://www.mathsisfun.com/images/triangle-right.gif width="150" height="75" caption="Right Triangle"]] || === Right Triangle ===
 * [[image:http://www.mathsisfun.com/images/triangle-obtuse.gif width="150" height="70" caption="Obtuse Triangle"]] || === Obtuse Triangle ===

<span style="font-family: &#39;Comic Sans MS&#39;,cursive; font-size: 200%;">Shmoop



<span style="font-family: &#39;Comic Sans MS&#39;,cursive; font-size: 200%;">Shmoop Rhombi





<span style="font-family: &#39;Arial Black&#39;,Gadget,sans-serif; font-size: 200%; line-height: 0px; overflow: hidden;"> <span style="font-family: &#39;Arial Black&#39;,Gadget,sans-serif; font-size: 200%; line-height: 0px; overflow: hidden;">





<span style="font-family: &#39;Comic Sans MS&#39;,cursive; font-size: 200%;">Vocab Review

<span style="font-family: &#39;Comic Sans MS&#39;,cursive; font-size: 200%;">





[|Quiz]

<span style="font-family: &#39;Comic Sans MS&#39;,cursive; font-size: 200%;">Coordinate Planes <span style="font-family: &#39;Comic Sans MS&#39;,cursive; font-size: 200%;">To plot a point on a coordinate plane, go over to the number on the x-axis, which is 2 in the example below. Next, you go up 5 on that line (which is the y-axis). That is the point (2,5). The 2 represents the x and the 5 represents the y.

To plot a point on a 4 quadrant (section) coordinate plane: media type="custom" key="28931940"

<span style="font-family: &#39;Comic Sans MS&#39;,cursive; font-size: 200%;">Games

Math Nook



Locate the Aliens

[|More Games here]

Distances on a coordinate plane media type="custom" key="29102287"



Patterns and Graphing

<span style="font-family: Georgia,serif; font-size: 200%;">Line Plots <span style="font-family: Georgia,serif; font-size: 200%; line-height: 0px; overflow: hidden;">

Line Plot with fractions video [|ThinkPort Line Plot activity with fractions]

[|Try This!]

Khan Academy-Watch the video, do the practice, show the score



Annenberg Learner



[|Glencoe Interactive]