Last month, I was at a
football match. The team I support were winning, for a change. As a
result, I was clock watching for most of the second half. As time went
on, I realised that my Number Bonds to 90 are pretty good.
Too often in school, we focus on Number Bonds to 10 and to 100. This is all good and well, but it's not enough. The children need to know their Number Bonds WITHIN 100. This then aids their addition and subtraction greatly. They need to know all 288 X and ÷ facts, and in the same way, they need to know these sum/difference facts within 100. For example, 5 and what make 13? 15 add 7 is? 23 added to 19? 44 subtract 17?
Here's an idea.
Too often in school, we focus on Number Bonds to 10 and to 100. This is all good and well, but it's not enough. The children need to know their Number Bonds WITHIN 100. This then aids their addition and subtraction greatly. They need to know all 288 X and ÷ facts, and in the same way, they need to know these sum/difference facts within 100. For example, 5 and what make 13? 15 add 7 is? 23 added to 19? 44 subtract 17?
Here's an idea.
Like I was, use the scenario of a sporting event to help:
Football: Number Bonds to 45/90
Basketball: Four 12 minute quarters
Cricket: Number Bonds to 6 (overs), 40/45/50 (game length)
Netball: 60 minutes, divided into 15 minute quarters
Ice Hockey: 60 minutes, divided into 20 minute thirds
Rugby Union: Number bonds to 40/80
Football: Number Bonds to 45/90
Basketball: Four 12 minute quarters
Cricket: Number Bonds to 6 (overs), 40/45/50 (game length)
Netball: 60 minutes, divided into 15 minute quarters
Ice Hockey: 60 minutes, divided into 20 minute thirds
Rugby Union: Number bonds to 40/80
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