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Think! Mathematics Secondary Textbook 1B (8th Ed)


think! 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

ISBN: 9789813245365

No. of pages: 248

Weight: 670g


  1. Percentage
  • Percentage
  • Percentage change, percentage point and reverse percentage
  • Percentage in real-world context
  1. Ratio and Rate
  • Ratio
  • Rate
  • Speed
  1. Basic Geometry
  • Basic geometrical concepts and notations
  • Properties of angles formed by intersecting lines
  • Properties of angles formed by two parallel lines and transversal
  1. Polygons and geometrical constructions
  • Triangles
  • Quadrilaterals
  • Geometrical Constructions of triangles and quadrilaterals
  • Polygons
  1. Perimeter and area of planes figures
  • Conversion of units
  • Perimeter and area of basic plane figures
  • Perimeter and area of parallelograms
  • Perimeter and area of trapeziums
  1. Volume and surface area of prisms and cylinders
  • Conversions of units
  • Three- Dimensional solids
  • Volume and surface area of cubes and cuboids
  • Volume and surface area of prisms
  • Volume and surface area of cylinders
  • Volume and surface area of composite solids
  1. Statistical data handling
  • Frequency table
  • Pictogram
  • Bar Graph
  • Pie Chart
  • Line Graph
  • Evaluation of statistical representations
  • Statistical investigation

Complete series contain:

  1. Textbook
  2. Workbook