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18) Fluency Halves

Doubling and Halving to 10: Filling a Wall

18.1 Fluency Halves Filling A Wall

Mathematics

Develop fluency with one half of the wholes 2, 4, 6, 8, 10.

Language

  • one half of
  • equals as “is”
  • double bond: a two-part bond, where both parts are the same

Differentiation

A little easier

Working Memory Support: subitised fingers 

Support recall by using fingers to develop fluency representing one-half of a double bond with fingers. It is essential students make the finger patterns in a subtised way, not by putting up individual fingers one at a time.

Working Memory Support: desk visual

Click to download the Double Bonds to 10 Part-Part-Whole Diagrams desk visual. 

A little harder

Activity 59

Students who have completed up to Ten Plus Bonds: Addition and Subtraction Ten and One can complete a similar activity for wholes in the teens. Complete Activity 59 Doubling and Halving to 20: Fluency Halves Filling a Wall.

Progression

In the next activity students build on double bonds using the addition strategy of near doubles. Go to

Activity 19

Doubling and Halving to 10: Near Double, Strategy Concept