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Magic Triangles - Addition to 20
1 2 Pre & Primary Essentials Resources Halloween Number & Place Value 26 Pages

Magic Triangles - Addition to 20

Designed to help students develop confidence using additon and subtraction strategies and becoming more efficient in this understanding, the Magic Triangles are perfect for lower primary maths rotations, relief teachers and fast finishers. Students solve simple addition problems using a range of addition and efficient mental strategies. Laminate to create a wipe-clean surface.

Learning goals

  • We are learning to use a range of strategies, to solve simple addition and subtraction problems.
  • We are learning to use a range of mental and written strategies to solve simple addition and subtraction problems.
  • We are learning to add and subtract numbers within 20, using a variety of strategies, e.g. counting on, counting back, partitioning, subitising and part-part whole knowledge of numbers to 10 and to use the language of 'plus' and 'minus' in story problems.
  • We are learning to model problems involving addition and subtraction, including simple whole-dollar money problems, in practical role-play situations.
  • We are learning to solve problems involving modelling addition, subtraction, equal sharing and grouping, using different strategies.
  • We are learning to recall addition facts to 20 and apply to related subtraction facts using a range of strategies.

Curriculum alignment

MA1-6NA old Uses a range of mental strategies and concrete materials for multiplication and division MA1-5NA old Uses a range of strategies and informal recording methods for addition and subtraction involving one- and two-digit numbers MA1-4NA old Applies place value, informally, to count, order, read and represent two- and three-digit numbers MA1-3WM old Supports conclusions by explaining or demonstrating how answers were obtained MA1-2WM old Uses objects, diagrams and technology to explore mathematical problems MA1-1WM old Describes mathematical situations and methods using everyday and some mathematical language, actions, materials, diagrams and symbols MA1-FG-01 new Uses the structure of equal groups to solve multiplication problems, and shares or groups to solve division problems MA1-CSQ-01 new Uses number bonds and the relationship between addition and subtraction to solve problems involving partitioning
VCMNA108 Recognise and represent multiplication as repeated addition, groups and arrays VCMNA111 Count and order small collections of Australian coins and notes according to their value VCMNA114 Apply repetition in arithmetic operations, including multiplication as repeated addition and division as repeated subtraction VCMNA107 Solve simple addition and subtraction problems using a range of efficient mental and written strategies VCMNA103 Investigate number sequences, initially those increasing and decreasing by twos, threes, fives and ten from any starting point, then moving to other sequences VCMNA094 Recognise the importance of repetition of a process in solving problems VCMNA092 Recognise, describe and order Australian coins according to their value VCMNA090 Represent practical situations that model sharing VCMNA089 Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts VCMNA087 Recognise, model, read, write and order numbers to at least 100. Locate these numbers on a number line

Australian Curriculum covers QLD / SA / WA / NT / TAS / ACT.

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