Grade 8 CBC Notes

The Competency Based Curriculum (CBC) was introduced in Kenya in 2017 and is being implemented in phases across the country. Grade 8 students are now learning under the new CBC system. The core purpose of CBC is to nurture the talents and capabilities of individual students and transform learning in Kenya.

Under CBC, students undergo formative assessments throughout the learning process. The curriculum emphasizes values, skills and competencies rather than just memorizing content. Students are expected to apply their knowledge and skills to real-life situations. Critical thinking, problem solving, creativity and collaboration are key skills developed under CBC.

Download Grade 8 CBC Notes

Here is a summary of the key grade 8 CBC notes that students should focus on for core subjects:


  • Factors and multiples – HCF, LCM, prime numbers, composite numbers
  • Rational numbers – fractions, decimals, percentages, ratios, rates
  • Algebraic expressions and identities – substitution, formulae, expanding and factorizing expressions
  • Linear equations – solving simple linear equations, applications of equations
  • Measurement – units of measurement, perimeter, area, volume, measuring angles
  • Geometry and shapes – lines, angles, triangles, quadrilaterals
  • Statistics – mean, mode, median, data collection and representation


  • Grammar – parts of speech, direct and indirect speech, active and passive voice
  • Writing skills – paragraph writing, narrative, descriptive, expository and persuasive compositions
  • Reading skills – skimming, scanning, intensive and extensive reading
  • Oral skills – dialogues, speeches, debates, telling stories, reciting poems
  • Vocabulary – affixes, roots, compounds, forming verbs from nouns
  • Literature – analysis of setting, characters, themes and styles


  • Sarufi – vitenzi, vielezi, viunganishi n.k
  • Stadi za kusikiliza na kuongea – dhana, mjadala, maswali na majibu, hadithi n.k
  • Stadi za kusoma – kusoma kwa ufahamu, matini n.k
  • Insha – andishi barua, hadithi fupi, ujumbe n.k
  • Vocab – msamiati, vitendawili, misemo n.k
  • Fasihi – riwaya, tamthilia, ushairi n.k


  • Biology – classification, cell structure, plant & animal tissues, systems in living things
  • Chemistry – atoms, elements, compounds, mixtures, separation methods
  • Physics – forms of energy, simple machines, pressure, electric circuits
  • Earth science – solar system, ecosystem conservation, map reading

Social Studies

  • Sources of history – artifacts, archives, oral traditions
  • Kenyan citizenship – national symbols, good citizenship, integrity
  • Government – arms of government, devolution, public resources
  • Map reading – latitude, longitude, scale, symbols
  • Entrepreneurship – characteristics, production, markets, advertising

Christian Religious Education

  • Creation stories – biblical and African perspective
  • Abrahamic faiths – beliefs, ways of worship
  • Christian living – fellowship, forgiveness, service
  • Moral values – honesty, justice, hard work
  • Jesus Christ’s ministry – teachings, parables, miracles

Islamic Religious Education

  • Foundations of Islam – pillars, beliefs, early prophets
  • Morals and values – honesty, generosity, rights of women and children
  • Acts of worship – prayer, fasting, charity, Hajj
  • Holy books – Quran, Hadith
  • Life of the Prophet Muhammad (PBUH)

Hindu Religious Education

  • Hindu scriptures – Vedas, Upanishads, Bhagavad Gita
  • Hindu gods and goddesses – Brahma, Vishnu, Shiva
  • Concept of karma, dharma
  • Worship and rituals – puja, arti
  • Pilgrimage – customs and rituals

In summary, these are the key grade 8 notes that learners should study for a strong foundation in the CBC curriculum. The competencies and skills covered will enable a smooth transition to high school education. Students should grasp these concepts well through active participation, collaboration and applying knowledge to real-life situations.