Mastery: addition and subtraction facts to 20

Mastery Lesson Plans
Topic: addition and subtraction facts to 20.
Age group: initially taught in KS1, but could also be used as revision for Y3/4 pupils, before teaching the next stage of addition/subtraction (formal algorithms).
The UK National Curriculum states that pupils should be fluent in mathematical facts (addition and subtraction within 20 is a vital part of this). This lesson sequence uses many elements of teaching for mastery in order to achieve this fluency:
• Small steps – each stage of teaching sequence has been carefully planned to build on pupils’ prior knowledge and understanding.
• Balance between factual fluency and conceptual understanding with carefully thought about reasoning questions, which allow pupils to understand concepts at a deeper level.
• Procedural Variation – Questions/calculations are chosen carefully in order that as well answering them accurately, pupils will also begin to understand the deeper mathematical structures. As the Japanese say: The answer is only the beginning.
• Conceptual Variation – The same mathematical concept is presented and proven in different ways so that pupils can make sense of it.
Pack includes:
• Lesson plans (arranged by each small step, rather than by day)
• Procedural Variation questions (see NCETM’s definition of intelligent practice)
• Smart notebook with resources and question ideas