2014 K-12 MATH PROGRAM Find out how Our World of Math can bring joy to teaching and learning K to 12 Math! Use this guide to understand how Vibal Our World of Math Program was especially developed for your students. Visit www. vibalgroup.com for more info. 1 Contents Vibal Our World of Math Program Advantage ......... 3 The Authors................................................................... 3 Salient Features of Our World of Math Series........... 5 Inquiry-based Advantage............................................ 6 Task-based Advantage................................................. 7 Learner-centered Advantage...................................... 8 Our World of Math Teacher’s Manual........................ 9 Our World of Math N-K-P............................................. 0 Our World of Math Grade 1......................................11 Our World of Math Grade 2......................................12 Our World of Math Grade 3......................................13 Our World of Math Grade 4......................................14 Our World of Math Grade 5......................................15 Our World of Math Grade 6......................................16 Our World of Math Grade 7......................................17 Our World of Math Grade 8......................................18 Our World of Math Grade 9......................................19 Our World of Math Grade 10....................................20 MathEx .........................................................................21 Vsmart Advantage ...............................................22-23 Action Form/ Contact Info.........................................24 Vibal Our World of Math Program Advantage Kto12 Our World of Math K to 12 is an all-new series aligned to the latest K to 12 curriculum being implemented by the Department of Education. It organizes the key math concepts into five domains: numbers and number sense, measurement, patterns and numbers, algebra, geometry, and probability and statistics. Particularly noteworthy is its use of the inquiry approach, as well as its progressive development of higher-order thinking skills. Our World of Math K to 12 curriculum emphasizes the spiraling development of concepts and competencies in ever increasing levels of complexity. Each lesson starts from the simple, moves to the moderate, and progresses to a wider and more challenging competency or perspective. The series aims to make every learner a practical thinker and problem solver. The Authors Grade 1-6 Alicia L. Padua Head, Research and Professional Development and former Principal, High School Department St. Mary’s College Quezon City Ricardo M. Crisostomo Science Teacher High School Ateneo de Manila University Leona O. Bay Math Coordinator Grade School St. Mary’s College Quezon City Juanito D. Yusingco Math Instructor Siena College, San Jose Del Monte City, Bulacan Mary Lyn U. Dominguez High School Assistant Principal for Academic Affairs-Sciences Don Bosco Technical College Mandaluyong City 3 The Authors Telesforo F. Acopiado, Jr. Math Teacher Don Bosco Technical College Mandaluyong City Grace U. Yn Math Teacher Grade School Ateneo de Manila University Noel M. Menor Math Coordinator Grade School La Salle Green Hills Niño Jose P. De Guzman Math Teacher Grade School La Salle Green Hills Roldan G. Tabayoyong Math Teacher Marist School Marikina City Grade 7-10 Virgie Gayda-Esteves Math Coordinator Grade School Ateneo de Manila University Rachelle T. Tang Chemistry Teacher Don Bosco Technical College Mandaluyong City Nelson C. Cajandab Math Teacher Grade School La Salle Green Hills Judy Lim-Gabriel Retired Math Supervisor Division of City Schools Manila Anita C. Ong Math Professor De La Salle University Taft Avenue, Manila Alicia L. Padua Head, Research and Professional Development and former Principal, High School Department St. Mary’s College Quezon City Ricardo M. Crisostomo Science Teacher High School Ateneo de Manila University Priscila C. de Sagun Assistant Schools Division Superintendent, DepEd Makati Julieta G. Bernabe Math Education Supervisor of DepEd Manila Division of City Schools (1986-1997), Board Member of the Mathematics Teachers Association of the Philippines (MTAP) Soledad Jose-Dilao Facilitator and Resource Speaker of Seminars and Conferences on Mathematics Education, member of the Foundation for Upgrading Standards of Education (FUSE). Consultants Rommel S. Quiming High School Academic Coordinator of St. Mary’s College, Quezon City 4 Maricel C. Corpuz Mathematics area coordinator, PAASCUStudent Services chairperson, Math Teacher of St. Mary’s College, Quezon City Michael R. Lee Year Level Chairman of Grade 7 of Caloocan High School, Math Faculty Member of Pamantasan ng Lungsod ng Valenzuela Ester B. Ogena, Ph.D. President Philippine Normal University Carmela C. Oracion Executive Director, Ateneo Center for Educational Development Ian June L. Garces, Ph.D. Associate Professor at the Department of Mathematics, Ateneo de Manila University Salient Features of Our World of Math Series ✔✔ Supports Understanding by Design (UbD) framework and cooperative learning ✔✔ Follows logically sequenced stages of learning through a conceptual process of solving routine and non-routine problems ✔✔ Motivates learners to seek and learn new math concepts that are directly or indirectly applicable to real-life situations ✔✔ Develops higher-order thinking skills (HOTS) through sets of exercises that are arranged in increasing levels of difficulty ✔✔ Employs the block model approach (in Grades 3 to 6) to help learners solve situational problems using concrete and practical perspectives ✔✔ Provides enrichment activities with an included CD-ROM for Grades 1 to 6 ✔✔ Provides free online support with each book’s companion website for Grades 1 to 10 ✔✔ Integrates values via Let’s Connect in Grades 1 to 6, while notes on values are highlighted in Grades 7 to 10 ✔✔ Interactive e-book edition is perfect for school tablets and goes beyond the print textbook with its animations, rich media, and self-scoring quizzes. 5 Inquiry-based Lessons are presented with devices that ellicit curiosity LE S S ON 1 Reading and Writing Whole Numbers Engage lessons open with real-life situations and stimulate learners by using experiences and ideas that they can easily relate to. Engage Numbers can be written and read in many ways for different purposes and situations. Observe how each of these numbers is written. s Try 0921-7885006 4 218 586 042 763 11-24-2013 Where do you usually see or use these numbers? Which one is written in standard form? 1 2 3 Build Your Understanding Numbers such as 0921-7885006, 11-24-2013, and 712-2722 are examples of a mobile phone number, a date in the future, and a telephone number. These numbers are used for different purposes but they do not consider place values. How about the number 4 218 586 042 763? Does it consider place values? How do you read this number? GRADE SIX 3 CHECK YOUR UNDERSTANDING Group Work A. Read each number and give the period of the underlined digits. 1. B. 2 305 320 401 203 2. 34 560 780 230 000 3. 40 112 889 245 320 4. 75 280 906 346 501 5. 102 610 891 328 495 Write each number in standard form. 6. 56 trillion, 9 million, 5 thousand 7. 10 trillion, 4 billion, 6 million 8. 780 trillion, 345 million, 2 hundred 9. 631 trillion, 210 billion, 326 million, 85 thousand 10. 987 trillion, 654 billion, 321 million, 123 thousand, 4 hundred Individual Work A. Read each number then give the place value and the value of the digit 8. Place Value Example: 7 854 602 B. C. Value of the digit 8 hundred thousand 800 000 1. 438 760 931 ______________________ ______________________ 2. 5 386 459 007 ______________________ ______________________ 3. 46 804 747 216 ______________________ ______________________ 4. 372 589 069 444 ______________________ ______________________ 5. 96 872 040 573 ______________________ ______________________ Build Your Understanding presents the new lesson concretely by formalizing and discussing the derivation of mathematical concepts and ideas that can help solve problems. Check Your Understanding exercises, enriches, and deepens the knowledge and skills attained in the lesson; learners can work on these exercises on their own or in collaboration with others. Read each number orally. Then write each number in words. 6. 8 409 523 008 ______________________________________________________ 7. 35 007 147 056 ______________________________________________________ 8. 403 750 900 023 9. 5 246 806 077 653 ______________________________________________________ 10. 70 800 500 275 400 ______________________________________________________ ______________________________________________________ Write the number in standard form. _____________ 11. five hundred twelve million, eighty-six thousand, six hundred forty _____________ 12. twelve billion, eight hundred million, eight thousand, seventy-five _____________ 13. 72 billion, 45 million, 256 thousand, 245 _____________ 14. 506 billion, 3 million, 742 _____________ 15. 8 trillion, 42 billion, 206 million, 7 thousand, 806 6 OUR WORLD OF MATH Inquiry Questions establishes the relevance of the chapter in real life. Engage lesson openers provide problem situations− these serve as springboard for the learners to simulate experiences and ideas that would relate to the new lesson. Learning Objective statement gives an overview on what you must learn from each lesson. 6 Task-based Plenty of activities and tasks Chapter 1 Share What You Know Questions at the beginning of each chapter elicit prior knowledge and encourage students to learn more in upcoming discussions. WHOLE NUMBERS Exponents are also useful when writing powers of ten. Numerical expressions such as 100, 101, 102, and so on are called powers of 10. In this chapter, you will learn the following: 1 2 3 A power of 10 equals the number 10 multiplied by itself for a given number of times. Study this example. Reading and Writing Whole Numbers Exponents 100 000 = 10 × 10 × 10 × 10 × 10 Writing Numbers in Expanded Notations 4 5 6 7 There are five zeros in 100 000, so 10 is multiplied by itself 5 times. Thus, to write 100 000 in exponential form or notation we have, Scientific Notation 10 × 10 × 10 × 10 × 10 = 100 000 = 105. Rounding Off Numbers Writing Sets and Set Notations Let’s Operations on Sets 1. How can you describe one billion to someone who has no idea of the size of this number? Do you see the relationship between the exponent in a power of 10 and the number of zeros in the standard form of the number? We read numbers in exponential form as follows: 100 is read as “ten to the zeroth power.” 101 is read as “ten to the first power.” 102 is read as “ten to the second power” or “ten squared.” At present, our country has a population of approximately a hundred million people. The government spends billions and trillions of pesos every year for the basic services, infrastructures, and other needs of the people. 2. How large is a trillion? 103 is read as “ten to the third power” or “ten cubed.” 2 OUR WORLD OF MATH 104 is read as “ten to the fourth power.” Let’s Say Study the following examples. 1. 53 written in standard form is 125 since 53 = 5 × 5 × 5 = 125 2. Let’s Say In the place value chart, notice that the digits are grouped into sets of three digits. Each group of three digits is called period. The words units, thousands, millions, billions, and trillions are called periods in our numeration system. In the number 24 607 112 874 007, the digit 6 is in the hundred billions place and its value is 600 000 000 000 or 6 hundred billions. It is read as “twenty-four trillion, six hundred seven billion, one hundred twelve million, eight hundred seventy-four thousand, seven.” Likewise, the digit 7 in the billions place, has a value of 7 000 000 000 or 7 billions. The digit 0 has no value but it is used as a place holder. The place value of the digit 0, between 6 and 7 is ten billions. Its value is 0. Let’s Try gives learners exercises to work on their own to determine the extent of knowledge and skills they have internalized. Let’s Try A. B. hundred thousands place? ___________ millions place? ___________ 3. ten billions place? 4. hundred millions place? ___________ 5. billions place? ___________ ___________ Read the number words. Then write each number in standard form. 6. twenty million, seven hundred sixty-five thousand, eighty-three ____________ 7. fifteen billion, four hundred five million, seventy-six thousand, five hundred fifty-four ___________ 8. nine trillion, one hundred five billion, two hundred fifty-one million, four hundred twenty-eight thousand, eighty-five ______________ 4. 1 000 000 written in exponential form is 106 Let’s Try A. 2. 34 written in standard form is 81 since 34 = 3 × 3 × 3 × 3 = 81 10 × 10 × 10 × 10 written in exponential form is 104 1 000 000 = 10 × 10 × 10 × 10 × 10 × 10 = 106 In the number 76 073 588 421, what digit is in the: 1. 3. B. Write the following in exponential form and give the result in standard form. 1. 6×6×6×6×6 2. 8×8×8×8 3. 12 × 12 × 12 4. 5×5×5×5 5. 7×7×7 Write each exponential form in standard form. 1. 107 = _________ 2. 33 = _________ 3. 72 = __________ 4. 18 = __________ REMEMBER KEY IDEAS • • • Chapter Review contains answers to Share What You Know as well as the Summary of Key Ideas contained in the lesson, as well as properties and mathematical procedures learned within the chapter. Extended Tasks require students to demonstrate the transfer of learning, while the Chapter Test contains both objective and comprehensive tests to evaluate learning; Problem Solving deepens learners’ abilities and skills in tackling real-life word problems. The digits in a number are separated into groups of three. Each group, separated by a comma or a space is called period. Each digit of a number occupies a different position or place value. Its value depends on its place in the number. To read any whole number, read the names of the periods occupied by the digits except the units period. GRADE SIX 9 GRADE SIX 5 ANSWERS TO SHARE WHAT YOU KNOW 1. You can think about numbers in many different ways. A billion is equal to one thousand times one million. This means that there are one thousand millions in one billion. A billion when written in standard form is 1 followed by nine zeros. 2. A trillion is in the fifth period of the numeration system. There are 1 000 billions in one trillion. A trillion is equal to one million times one million. It is written in standard form as 1 followed by 12 zeros. • The digits in a number are separated into groups of three. Each group of three digits is called period. • Each digit occupies a specific position or place value. Its value depends on its place in the number. • To read a whole number, read the names of the periods except the units period. The word and is not used in reading and writing whole numbers. SUMMARY OF KEY IDEAS • The exponent tells how many times the base is to be multiplied by itself. • Any nonzero number with a zero exponent is equal to 1 and the number raised to the exponent 1 is equal to the number itself. • A number can be written in expanded notation by using the value of its digits, the place values of its digits, and the powers of ten. • A number is in scientific notation when it is written as the product of a number between 1 and 10 and a power of 10. • To round off whole numbers, first determine the round off place. Then look at the digit to the right side of the round off place. If the digit is 5 or more, add 1 to the digit in the round off place, otherwise retain the digit in the round off place. Replace all the digits to its right with zeros. • A set is a well-defined collection of objects. The objects in a set are called members or elements. • Braces { } are used to enclose the elements of a set. The symbol ∈ reads “is an element of” and ∉ is its negation. Let’s Say features illustrative examples that contain graphics, conceptual, and procedural approaches to help students work out the step-by-step solutions to mathematical and situational problems. base → 54 ← exponent • A set can be described by using the description method and roster or listing method. • The union of two or more sets is the set of all elements which belong to both sets. A ∪ B is read as “the union of set A and B” or “A union B.” • The intersection of two or more sets is the set of all elements that are common to both sets. A ∩ B is read as “the intersection of set A and B” or “A intersection B.” • The Venn diagram is a pictorial representation of the union and intersection of two or more sets. 34 OUR WORLD OF MATH 7 Learner-centered Lessons are developed around the learner REMEMBER KEY IDEAS • WWW A number in exponential form has a base and an exponent. The base is the repeated factor. The exponent tells the number of times the base is to be multiplied by itself. Any nonzero number with a zero exponent is equal to 1. Any number raised to the exponent 1 is equal to the number itself. The number of zeros found after the digit 1 in a power of 10 corresponds to the exponent of 10. • • • Visit i-learn.vibalpublishing.com and click the link to a fun game about writing exponents. CHECK YOUR UNDERSTANDING Remember Key Ideas summarizes at a glance the ideas, concepts, definitions, properties, and procedures discussed in the lesson. Group Work A. B. Write each in exponential form. 1. 5 × 5 × 5 = ____________ 2. 4 × 4 × 4 × 4 × 4 = ____________ 3. 8 × 8 × 8 × 8 = ____________ 4. 7 × 7 × 7 × 7 × 7 × 7 = ____________ 5. 1 × 1 × 1 × 1 × 1 × 1 × 1 × 1 = ____________ Write each in standard form. 6. 8. 35 = ___________ 7. 25 = ___________ 43 = ___________ 9. 10. 106 = ___________ 11. 109 = ____________ 12. 1010 = ____________ 13. 107 = ____________ 14. 10 = ____________ 15. 108 = ____________ 4 74 = ___________ Individual Work A. Write each in exponential form. 1. 3 × 3 × 3 × 3 × 3 = _______________ 2. 10 × 10 × 10 × 10 × 10 × 10 = _______________ 3. 100 × 100 × 100 = _______________ 4. 10 000 000 = _______________ 5. 100 000 000 000 = _______________ 10 OUR WORLD OF MATH EXTEND YOUR UNDERSTANDING A. Numbers can be named and written in several ways. Look at the following examples. 46 hundreds = 4 600 840 000 = 84 ten thousands 500 000 000 = 50 ten millions Write another number that represents each given value. B. 1. 456 hundreds 2. 708 hundred thousands = ______________________ millions 3. 62 ten billions = ______________________ thousands = ______________________ hundred thousands 4. 16 billions = ______________________ millions 5. 8 trillions = ______________________ hundred millions Answer the following: 6. 7. 8. How many tens are there in a. 16 000? _____________ b. 23 730 000? _____________ c. 700? _____________ d. 339 400? _____________ How many ten thousands are there in a. 300 000? _____________ b. 6 500 000? _____________ c. 35 000 000 000? d. 65 000? _____________ _____________ How many millions are there in a. 9 000 000? _____________ b. 124 000 000 000? _____________ Think About This Extend Your Understanding contains exercises and activities that further enrich and challenge learners to be much better problem solvers by involving them in deeper analysis, synthesis, and reflection on the lesson while developing the learners’ critical and higher-order thinking skills. Determine the value of the following. Write each number in standard form. 1. 46 ten millions more than 8 millions 2. 18 hundred millions less than 27 billions GRADE SIX 7 Answer to Inquiry Question provides a possible answer(s) to the inquiry question found at the beginning of the chapter. 8 Check Your Understanding exercises to enrich and deepen the knowledge and skills attained in the lesson; learners can work on these exercises on their own or in collaboration with others. Our World of Math Teacher’s Manual and Resource Materials The accompanying Teacher’s Manuals are organized with the three stages of UbD design in mind, namely, identifying desired outcomes, products, and performances; assessment with rubrics that identify the criteria and performance indicators; and learner-centered and activity-laden instructional plans. Each manual lists authentic tasks that are specified for learners, complete with strategies for developing higher-order skills. Our World of Math Teacher’s Manual guides teachers in their day-to-day classroom instruction. It assists teachers in making the teaching- learning process more engaging and meaningful through the following features: ✔✔ Introduction gives a brief description of the content of each lesson found in the chapter. ✔✔ Instructional Design outlines the three teaching-learning stages based on the Understanding by Design (UbD) framework ✔✔ Desired Results highlight Established Learning Concepts, Acquisition, Makemeaning, and Transfer Goals. ✔✔ Assessments provide Performance Task, Rubric, and Other Evidences. ✔✔ Learning Activities initiate review, explore prior knowledge, motivation and all other activities for acquisition, meaning-making, and transfer of learning. ✔✔ Activities integrate values, technology, and connections with other disciplines. 9 Our World of Math N, Pre-K, K Our World of Math for Nursery, Pre-K, and Kinder levels offer complementary math activity books for early childhood: ✔✔ Give learners in Nursery, Kinder, and Preparatory a head start in the world of numbers ✔✔ Provide preschoolers activities toward appreciation of basic mathematical concepts ✔✔ Develop a genuine interest in math toward understanding of fundamental math principles 10 f o d l r o W r Ou Grade 1 Chapter 1 Understanding Sets and Whole Numbers inquiry question: Write the largest possible odd number using the digits 3, 1, and 7. Lesson 1 Identifying and Classifying Sets (1.NNS.2) Lesson 2 Comparing Sets (1.NNS.2) Lesson 3 Ordering Sets (1.NNS.7) Lesson 4 Reading and Writing Numbers from 0 to 10 (1.NNS.1) Lesson 5 Counting More than 10 (1.NNS.2) Lesson 6 Place Value of Two-Digit and Three-Digit Numbers (1.NNS.10) Lesson 7 Comparing Numbers (1.NNS.12) Lesson 8 Ordering Numbers (1.NNS.13) Lesson 9 Ordinal Numbers (1.NNS.15) Chapter 2 Addition of Whole Numbers Chapter 3 Subtraction of Whole Numbers Chapter 8 Geometry Chapter 9 Measurements Chapter 10 Reading Graphs Chapter 4 Multiplication of Whole Numbers Chapter 5 Division of Whole Numbers Chapter 6 Money Chapter 7 Fractions 11 f o d l r o W Our Chapter 1 Understanding Sets and Whole Numbers Chapter 2 Addition of Whole Numbers Chapter 3 Subtraction of Whole Numbers Grade 2 Chapter 7 Geometry Chapter 8 Measurement Chapter 9 Pattern Recognition Chapter 5 Division of Whole Numbers Chapter 6 Fractions Chapter 4 Multiplication of Whole Numbers inquiry question: Aling Ising bought 9 boxes of bottled water. Each box contains 24 small bottles. How many bottles did Aling Ising buy in all? Lesson 1 Understanding the Properties of Multiplication Lesson 2 Multiplying 1- to 2-Digit Numbers by 1-Digit Numbers without Regrouping Lesson 3 Multiplying Numbers by 10, 100, and 1 000 Lesson 4 Multiplying 1- to 2-Digit Numbers by 1-Digit Numbers with Regrouping Lesson 5 Solving One- to Two-Step Word Problems 12 f o d l r o W r Ou Chapter 1 Whole Numbers Chapter 2 Addition of Whole Numbers Grade 3 Chapter 3 Subtraction of Whole Numbers Chapter 4 Multiplication of Whole Numbers Chapter 7 Fractions inquiry question: When adding or subtracting like fractions, do you add or subtract the denominators in the same way that you add or subtract the numerators? Lesson 1 Understanding Concepts of Fractions Lesson 2 Identifying Kinds of Fractions Lesson 3 Identifying Equivalent Fractions Lesson 4 Comparing and Ordering Fractions Lesson 5 Expressing Fractions in Simplest Form Lesson 6 Solving for the Fractional Part of a Number Lesson 7 Adding and Subtracting Like Fractions and Mixed Numbers Chapter 5 Division of Whole Numbers Chapter 10 Measurement Chapter 11 Maps and Graphs Chapter 6 Number Relations Chapter 8 Decimals and Money Chapter 9 Geometry 13 f o d l r o W r u O Grade 4 Chapter 1 Whole Numbers Chapter 2 Operations on Whole Numbers Chapter 3 Decimals Chapter 4 Number Theory Chapter 5 Fractions Chapter 6 Ratio and Proportion Chapter 7 Geometry Chapter 8 Measurement and Graphs inquiry question: How can you use your knowledge of place value, special products, and special quotients to convert units of measure? Lesson 1 Measures of Length Lesson 2 Measures of Mass Lesson 3 Bar Graphs (4.SP.2, 4.SP.3, 4.SP.4) 14 f o d l r o W r u O Grade 5 Chapter 1 Whole Numbers Chapter 8 Measurement Chapter 2 Operations on Whole Numbers Chapter 9 Introduction to Graphs Chapter 3 Number Relations Chapter 4 Fractions Chapter 5 Decimals Chapter 7 Geometry Chapter 6 Ratio, Proportion, and Percent inquiry question: If you have P1,000,000, what percent of the amount can you share to the poor? Why? Lesson 1 Computing for Ratio and Rates Lesson 2 Understanding Proportion Lesson 3 Solving Direct Proportion Lesson 4 Solving Indirect Proportion Lesson 5 Applying Partitive Proportion Lesson 6 Understanding Percent and Its Relation to Fractions and Decimals Lesson 7 Finding Base, Percentage, and Rate 15 f o d l r o W r Ou Chapter 1 Whole Numbers Chapter 7 Geometry Chapter 2 Operations on Whole Numbers Chapter 8 Measurement and Graphs Chapter 3 Number Relations Chapter 4 Understanding Decimals Chapter 6 Ratio and Proportion Chapter 5 Understanding Fractions inquiry question: Do you agree that if you multiply two proper fractions, the product is greater than 1? Lesson 1 Concept of Fraction Lesson 2 Equivalent Fractions and Fractions in Simplest Forms Lesson 3 Adding Fractions and Mixed Numbers Lesson 4 Subtracting Fractions and Mixed Numbers Lesson 5 Multiplying Fractions and Mixed Numbers Lesson 6 Dividing Fractions and Mixed Numbers 16 Grade 6 Chapter 9 Probability and Statistics Chapter 10 Introduction to Algebra f o d l r o W r Ou Grade 7 Chapter 1 Exploring The Real Number System Chapter 3 Introducing The Language Of Algebra Chapter 4 Solving Linear Equations And Inequalities In One Variable Chapter 5 Exploring The Language Of Geometry Chapter 6 Identifying Geometric Shapes Chapter 7 Describing Data Through Statistical Measures Chapter 2 Doing Measurements inquiry question: Write a letter to your teacher explaining what you understand about measuring length and what needs to be clarified. Lesson 1 History of Measurement (7.M.2) Lesson 2 Measuring Length (7.M.3, 7.M.4) Lesson 3 Measuring Mass (7.M.3, 7.M.4) Lesson 4 Measuring Volume and Capacity (7.M.3, 7.M.4) Lesson 5 Measuring Temperature (7.M.3, 7.M.4) Lesson 6 Measuring Time (7.M.3, 7.M.4) Lesson 7 Measuring Angle (7.M.3, 7.M.4) Lesson 8 Comparing Quantities Using Ratio (7.M.4) 17 f o d l r o W r u O Grade 8 Chapter 9 Proving Congruence Of Chapter 2 Manipulating Rational Expression Triangles And Equations Chapter 11 Identifying Chapter 3 Simplifying Expressions With Quadrilaterals Integral Exponents Chapter 1 Finding Special Products And Factoring Chapter 4 Understanding Relations And Functions Chapter 5 Exploring Linear Functions Chapter 12 Describing Data Through Statistical Measures Chapter 6 Graphing Two Variables In Linear Equations And Inequalities Chapter 7 Defining And Solving Systems Of Linear Equations And Inequalities Chapter 8 Using Logic in Geometry Chapter 10: Recognizing Parallel Lines And Their Implications inquiry question: If line is parallel to line b and line b is parallel to line c, is line a parallel to line c? If yes, give a real-life situation to demonstrate the concept. Lesson 1 Parallel Lines and Transversals Lesson 2 Properties of Parallel Lines Lesson 3 Conditions for Parallel Lines 18 f o d l r o W r Ou Chapter 1 Solving Quadratic Equations Chapter 2 Graphing Quadratic Functions Chapter 3 Solving Equations Involving Rational Expressions Grade 9 Chapter 7 Highlighting The Special Properties Of Right Triangles Chapter 9 Solving Problems Related To Triangle Trigonometry Chapter 4 Analyzing Variation Chapter 5 Manipulating Rational Exponents And Radicals Chapter 6 Recognizing Similarities Of Geometric Figures Chapter 8 Identifying Parallelograms And Kites inquiry question: If the median of a trapezoid has length 3.5 cm, what are the possible integral lengths for the two bases? Lesson 1 Kinds of Quadrilaterals (9.G.8) Lesson 2 Parallelogram and Its Properties (9.G.9) Lesson 3 Tests for Parallelograms (9.G.19) Lesson 4 Special Parallelogram and Kites (9.G.11) Lesson 5 Trapezoid and Its Properties (9.G.12) 19 f o d l r o W r Ou Grade 10 Chapter 1 Searching Patterns in Sequences INQUIRY question: What other pattern do you observe about the terms of a Fibonacci sequence? Make a research on this. Lesson 1 Patterns, Sequences, and Series Lesson 2 Geometric Sequence and Series Lesson 3 Harmonic and other sequences and series Chapter 2 Graphing Polynomial Functions Chapter 3 Delving Into Circles Chapter 4 Exploring Plane Coordinate Chapter 5 Counting the Number of Arrangements Chapter 6 Quantifying Chances Chapter 7 Locating the Position of an Object in a Data 20 MathEx SD Magazines are supplementary reading and activity materials for the major subjects in elementary and high school level, the content of each magazine adheres to the prescribed curriculum for the subject. MATH Ex is a supplementary magazine for mathematics published by SD Publications, a subsidiary of Vibal Group. As an activity-oriented supplementary reading material for mathematics, it provides learners with fun, varied, and interesting exercises and problem sets that help them understand and master math concepts and skills. Math Idol spotlights math personalities Chat About Math clarifies math concepts by giving light discussions and visualizations Math Teasers give interesting background of math concepts or principles developed by mathematicians Ride on These provides hands-on activities or exercises Go This Way presents practical math problem-solving tips and tricks 21 22 Listen to audio clips and podcasts Answer online exercises and get results with one click Get quick links to a range of online resources Read electronic versions of your textbook, with or without Internet access Watch videos, browse images, and get quick access to our knowledge database Test your skills with interactive exercises; the higher the student scores, the more quizzes they can unlock! Choose between English and Filipino language options Access learning supplements for each quarter or grading period Students can play fun and engaging games as they learn 23 Contact Information