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Think! Mathematics Secondary Textbook 2B (8th Ed)


ISBN: 9789813249295

No. of pages: 220

Weight: 610g

hink! Mathematics is a series of textbooks designed to provide students valuable learning experiences and a deeper appreciation of mathematics by engaging their minds and hearts. The series covers the MOE Syllabus for Mathematics implemented from 2020, and reflects the  important shifts towards the development of 21st century competencies. Underpinning the writing of this textbook is our belief that all students can learn and appreciate mathematics.  This textbook series will be a meaningful companion for students as they embark on an exciting journey in secondary school mathematics through collaborative and self-directed learning.

Special features

  • Chapter Opener and Introductory Problem motivate the development of concepts
  • Investigation, Class Discussion, Thinking time, Journal Writing and Performance Task highlight mathematics as a tool and as a discipline 
  • Real-life examples, applications and Problems in Real-World Contexts emphasise the relevance and beauty of mathematics
  • Worked Examples, Practise Now and Exercise questions ensure a high baseline of mastery
  • Challenge Yourself problems provide extension opportunities
  • Reflection prompts encourage metacognition
  • ICT tools promote visualisation and exploration of concepts
  • Invitation to Code and Opportunities to code expose students to this increasingly prominent skill of the future
  • Looking Back and Summary consolidate the big ideas, concepts and knowledge encountered in each chapter


  1. Congruence and similarity
  • Congruent figures
  • Similar figures
  • Similarity and enlargement
  1. Pythagoras’ Theorem
  • Pythagoras’ theorem
  • Application of Pythagoras’ theorem in real world context
  • Converse of Pythagoras’ theorem
  1. Trigonometric Ratio
  • Trigonometric ratios
  • Application of trigonometric ratio to find unknown sides of right-angled triangle
  • Application of trigonometric ratios to find unknown angles in right angled triangle
  • Applications of trigonometric ratios in real world context
  1. Volume and surface area of pyramids, cones and spheres
  • volume and surface area of pyramids
  • volume and surface area of cones
  • volume and surface area of sphere
  • volume and surface area of composite solids
  1. Probability of single event
  • Probability experiment and sample space
  • Probability of single events
  • Further examples of probability of single events
  • Experiment approach to finding probability
  1. Statistical diagrams
  • Dot diagram
  • Histograms for ungrouped data
  • Stem and leaf diagram
  • Histograms for grouped data
  1. Average of statistic data
  • Mean
  • Median
  • Mode
  • Measures of central tendency

Complete series contain:

  1. Textbook
  2. Workbook