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47) Addition

Ten Plus Bonds: Building a Wall

47.1 Addition Building A Wall

Mathematics

Develop fluency with two-part ten plus bonds of 20 in addition equations, expressed verbally.

Language

  • addition as “add”
  • equals
  • part-part-whole

Differentiation

A little easier

Part-Part-Whole diagrams

Place bonds of 10 part-part-whole diagrams next to students, as a desk visual for them to refer to, whilst completing the activity.  These diagrams can be useful supports for students with memory or processing difficulties. 

There are a variety of visuals to chose from.

Click to download this Bonds of 10 Part-Part-whole Desk Visual. It contains two different visuals:
This visual shows all the two-part bonds of 10.

This visual shows the more difficult to remember two-part bonds of 10.

Click to download this Bonds of 10 and Doubles Desk Visual. This version is smaller and can be taped to the back of a ruler for discrete use by students who are older or self-conscious about using visual supports. The bonds of 10 are dark blue to cater for student who are adverse the the chapter colour of pink. It are also contains the most difficult to remember double bonds.  

Click this link to read Teacher Notes for more ideas about “Using Part-Part-Whole Desk Visuals” to support students.

A little harder

Score winning multiples of 20

Each time the player spins and places blocks they score 20 points. Record this on a piece of paper as a cumulative total. The player with the highest score in 3 minutes wins. This develops fluency counting by 20. 

A little harder than this is again: Players still score 20 points each time they place blocks, however they record this using tally marks. Each tally line is worth 20. This introduces the concept of multiplication as either:

  • repeated addition. For example, seeing three tallies as 20 + 20 + 20.
  • or multiplication. For example, seeing three groups of 20, 3 x 20.

Progression

In the next activity students apply ten plus bonds of 20 to subtraction equations that have missing parts. Go to

Activity 48

Ten Plus Bonds: Subtraction, Tic-Tac-Toe