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CTET 1 Mar 2026 Paper 1, Question 49

Topic: Pedagogy of mathematics

Q49

Who is the inventor of Multi-base Arithmetic Blocks (MAB) — mathematical manipulatives that can be used by students to build number sense, understand addition, place value and counting ?

  1. (1) Zoltán DienesCorrect answer
  2. (2) Van Hiele
  3. (3) Hans Freudenthal
  4. (4) Magdalene Lampert

Solution.

CBSE answer: (1)

Answer: (1) Zoltán Dienes

  1. Dienes, a Hungarian mathematician and educator, designed Multi-base Arithmetic Blocks, also called Dienes blocks.
  2. Units, longs, flats and blocks let children see grouping and place value in different bases.
  3. Van Hiele is known for levels of geometric thinking; Freudenthal for Realistic Mathematics Education.