MATH Student Book. 4th Grade Unit 4

Transcription

1 MATH Student Book 4th Grade Unit 4

2 Unit 4 LINES AND SHAPES MATH 404 LINES AND SHAPES 1. Plane and Solid Shapes...3 Self Test Adding, Subtracting, Multiplying Number Order 14 Self Test Lines and Line Segments End Points, Rays, and Angles 23 Self Test Equivalent Fractions Sequencing 33 Missing Number Problems 35 Self Test Application and Review Self Test 5 48 LIFEPAC Test Pull-out 3 4 1

3 LINES AND SHAPES Unit 4 Author: Carol Bauler, B.A. Editor: Alan Christopherson, M.S. Media Credits: Page 3: tigger11th, istock, Thinkstock; 4: Dynamic Graphics, Liquidlibrary, Thinkstock; 11: Stockbyte, Thinkstock; 19: cifotart, istock, Thinkstock; 22: pavalena, istock, Thinkstock; 31: BackyardProduction, istock, Thinkstock; 32: helgy716, istock, Thinkstock; 42: Digital Vision, Photodisc, Thinkstock; 45: Lorelyn Medina, Hemera, Thinkstock; 46: housebrasil, istock, Thinkstock; Tomasz Caderek, Hemera, Thinkstock. 804 N. 2nd Ave. E. Rock Rapids, IA MCMXCVII by Alpha Omega Publications, Inc. All rights reserved. LIFEPAC is a registered trademark of Alpha Omega Publications, Inc. All trademarks and/or service marks referenced in this material are the property of their respective owners. Alpha Omega Publications, Inc. makes no claim of ownership to any trademarks and/or service marks other than their own and their affiliates, and makes no claim of affiliation to any companies whose trademarks may be listed in this material, other than their own. 2

4 Unit 4 LINES AND SHAPES 1. PLANE AND SOLID SHAPES Objectives Read these objectives. When you have completed this section, you should be able to: Identify plane and solid shapes. Measure the dimensions of plane and solid shapes. Complete this activity. 1.1 Match the figure to its name. a. 1. oval b. 2. hexagon c. 3. pentagon d. 4. square e. 5. octagon f. 6. triangle g. 7. circle h. 8. diamond i. 9. rectangle Section 1 3

5 LINES AND SHAPES Unit 4 In mathematics, we describe a flat shape as a plane shape. 1.2 Is each of the figures in 1.1 a plane shape? We may say that each one of these figures belongs to the general group of plane shapes. Polygons are closed, plane figures with 3 or more sides. Complete these activities. 1.3 Look at the figures in 1.1. a. Is each of these figures a closed figure? b. Do all the sides meet and join each other? c. Does each figure have three or more sides? d. Which ones do not have three or more sides?, Plane shapes are all around us. The piece of paper you are writing on is an example of a rectangle. Doors and windows are rectangles. Watch the road signs when you are riding in a car. Make a list of all the examples of polygons and plane shapes that you find. Rectangles and squares can be measured using length and width. The length is the longer side, and the width is the shorter side. Length and width are called dimensions. The dimensions of rectangles and squares are length and width. Rectangles and squares are two-dimensional figures. 4 Section 1

6 Unit 4 LINES AND SHAPES Complete these activities. You will need a ruler inches 1 inch Figure A Figure B 1.4 Write the dimensions of Figure A. length width 1.5 Measure Figure B in inches. Write the dimensions. length width 1.6 Write the name of each plane shape by its definition. Look at the figures at the beginning of this section to help you. a. Three-sided polygon b. Four-sided polygon with all sides equal c. Four-sided polygon with opposite sides equal d. A four-sided polygon that stands on end e. A closed plane shape with no straight sides f. Five-sided polygon g. Six-sided polygon h. Eight-sided polygon i. A flattened closed plane shape with no straight sides 1.7 What is another word to describe a plane shape? 1.8 How many sides must a polygon have? 1.9 What do we call the length and width of a rectangle? Section 1 5

7 LINES AND SHAPES Unit Match the solid shape with its name. a. 1. cylinder b. 2. cube c. 3. sphere d. 4. pyramid e. 5. cone Plane shapes are flat shapes. They do not take up space. Solid shapes do take up space. Most of the objects around us are solid shapes. Chairs, desks, and tables are all examples of solid shapes. The dimensions of a solid shape are length, width, and height. Solid shapes are threedimensional figures. 6 Section 1

8 Unit 4 LINES AND SHAPES Complete these activities. You will need a ruler. length inches width 1 inch height 2 inches Figure A Figure B 1.11 Write the dimensions of Figure A. length width height 1.12 Measure Figure B in inches. Write the dimensions. length width height The sides of a solid are called faces Look carefully. How many faces do you count for Figure A? B? Section 1 7

9 LINES AND SHAPES Unit Write the name of the solid shape by its definition. Look at the figures you have matched in activity 1.10 to help you. a. The bottom is round like a circle. The top is a point. b. This solid has six flat sides. Each side is the shape of a square. Each square is the same size. c. The bottom may be any shape of a polygon. The top is a point. The sides must be triangles. d. This is a perfectly round shape like a ball. e. The top and bottom of this solid shape are circles. f. How many dimensions do plane shapes have? g. How many dimensions do solid shapes have? 1.15 Using solid shapes, how would you describe... a. a baseball? b. something to hold ice cream? c. something inside a roll of paper towels? d. something to keep a drink cold? e. a burial place in Egypt? Review the material in this section to prepare for the Self Test. The Self Test will check your understanding of this section. Any items you miss on this test will show you what areas you will need to restudy in order to prepare for the unit test. 8 Section 1

10 Unit 4 LINES AND SHAPES SELF TEST 1 Complete these activities (each answer = 1 point) Match the figure with its name. a. cone b. diamond c. pyramid d. octagon e. sphere f. oval g. cylinder h. square i. cube j. pentagon 1.02 A polygon is a figure with a plane shape. What is another word for plane? 1.03 Plane shapes and solid shapes are all around us. a. List two examples of plane shapes., b. List two examples of solid shapes., 1.04 Rectangles and squares can be measured using their length and their How many dimensions does a plane shape have? 1.06 How many dimensions does a solid shape have? 1.07 Write the dimensions of this rectangular polygon in inches. Measure with a Section 1 9

11 LINES AND SHAPES Unit 4 ruler Write the dimensions of this rectangular solid in inches. Measure with a ruler. Teacher check: Initials Score Date Section 1

12 MAT_Gr3-5 MAT0404 Jan 16 Printing 804 N. 2nd Ave. E. Rock Rapids, IA ISBN