angle attribute Figure 1 4 right angles opposite sides parallel Lesson 14 5 Lesson 14 4 Vocab

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1 Vocab angle attribute 006_055_G4_VisV_ indd Page F46 2/13/10 11:27:36 PM u-s014 /Volumes/114/GO00403/GO00403_Natl_Visual_Voca_Cards_G4%0 Figure 1 4 right angles opposite sides parallel endpoint hexagon Photodisc/Getty Images octagon parallel parallelogram pentagon

2 Ideas for Use Group common words. Add a word that is unrelated to the group. Then work with a friend to name the unrelated word. Design a crossword puzzle. Use the definition for each word as the clues. A characteristic of a shape. Two rays sharing the same endpoint. How can a shape s attributes help you classify it? Imagine a friend showed you a drawing of two rays. Is the drawing an angle? Explain. Sample answer: If I can describe the sides and angles, then I can It isn t an angle unless the rays share an endpoint. tell what shape it is. A polygon with six sides and six angles. The point at the beginning of a ray. Compare a hexagon with a right triangle. Use the space below to draw your comparison. Endpoint is a compound word made of the words end and point. What is another example of a compound word? Lying the same distance apart from one another. Name an example of lines that are parallel that you might see during a walk down the street. Sample answer: The yellow lines Sample answer: snowman A polygon with eight sides and eight angles. Read and solve this riddle: I am an ocean animal. The prefix oct- is a part of my name. I have eight legs. What am I? octopus in a crosswalk. A polygon with five sides and five angles. Complete this sentence with a chapter vocabulary word: Five sides and five angles are called of a pentagon. attributes A quadrilateral that has both pairs of opposite sides parallel and equal in length. What is the root word in parallelogram? Use it in a sentence. parallel; The sides of the window are parallel to each other. See students drawings.

3 Vocab 106_155_G3_VisV_ indd Page F112 2/13/10 12:24:46 AM u-s _155_G3_VisV_ indd Page F118 2/13/10 12:25:45 AM u-s014 /Volumes/114/G polygon 104_155_G4_VisV_ indd Page F122 2/13/10 11:29:16 PM u-s014 quadrilateral /Volumes/114/GO00403/GO00403_Natl_Visual_Voca_Cards_G4% 106_155_G3_VisV_ indd Page F128 2/13/10 12:25:53 AM u-s014 ray rectangle rhombus Lesson 14 6 right angle right triangle square

4 Ideas for Use Write a tally mark on each card every time you read or write each word. Challenge yourself to use at least 3 tally marks for each card. A shape that has four sides and four angles. What does the prefix quad- mean? four Draw or write examples for each card. Be sure your examples are different from what is shown on each card. A closed two-dimensional figure formed of three or more straight sides that do not cross each other. Use a dictionary to find the meaning of the prefix poly-. How does it relate to the meaning of polygon? Sample answer: many; A polygon is a shape with many sides. A parallelogram with four right angles, opposite sides that are parallel and of equal length. Draw a rectangle. Then partition it into 3 equal areas. Write the fraction that describes your drawing. A part of a line that has one endpoint and extends in one direction without ending. Write a sentence using another meaning for the word ray. I saw a ray at the zoo s aquarium. See students drawings. Give three examples of right angles in a classroom. A parallelogram with four sides of the same length. Explain how a rhombus and square are alike. Sample answer: the corner of the Sample answer: They both have door, the piece of paper on my desk, the poster on the wall four sides of equal length and both are quadrilaterals. A parallelogram with four right angles and four sides of equal length. A triangle with one right angle. Explain how a square and a trapezoid are similar. The prefix tri- means three. How can you use this to help you remember a triangle s attributes? Sample answer: Both are Sample answer: Triangles always quadrilaterals. have 3 sides. An angle that forms a square corner.

5 Vocab 106_155_G3_VisV_ indd Page F144 2/13/10 12:26:04 AM u-s014 /Volumes/114/GO00402/GO00402_Natl_Visual_Voca_Cards_G3%0/XXXXXXXX trapezoid triangle 106_155_G3_VisV_ indd Page F152 2/13/10 12:26:08 AM u-s014 /Volumes/114/GO00402/GO00402_Natl_Visual_Voca_Cards_G3%0 056_105_G3_VisV_ indd Page F104 2/13/10 2:06:01 AM u-s014 Lesson 14 1 vertex perimeter 6 mm 6 mm 6 mm 10 mm P = 6 mm + 6 mm + 6 mm + 10 mm = 28 mm

6 Ideas for Use Write the name of a lesson on the front of a blank card. Write a few study tips for that lesson on the back of the card. A polygon with three sides and three angles. Imagine your friend draws a shape with three sides and three angles. How would you classify the shape? It is a triangle. Use the blank cards to draw or write examples that will help you with concepts like the relationship between quadrilaterals and parallelograms. A quadrilateral with exactly one pair of parallel sides. Explain how a square and a trapezoid are different. Sample answer: A square has 2 pair of parallel sides. A trapezoid has 1 pair of parallel sides. The prefix peri- means all around. How does this help you remember the definition of perimeter? Sample answer: A perimeter is the distance around a shape. The shared endpoint where 2 rays meet in an angle. Vertex can mean the highest point of something. How is this similar to the math meaning? Sample answer: Both are about something coming to a point. The distance around the outside of a figure.

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