Year 4
Introducing proportional adjustment, specifically doubling and halving. An example is 4 x 10 is the same as 2 x 20 or 8 x 5. We looked at representing this with blocks to illustrate that we are using the same numbers in a different way.
Year 5/6
Today we explored 2 strategies that can be explored to solve problems involving division. The first one, proportional adjustment involves simplifying the problem. For example, 320 divided by 5 can be done by going 320 divided by 10 and then doubling the answer. The second method involves using place value. For example 336 divided by 6 can be solved by going 6 x 50 = 300 + 6 x 6 = 36. Quick recall of multiplication facts is essential here!
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mr hill 6 x 50 =300 not 30!
ReplyDeleteand Mr hill i still don't understand the 6 x 50=30 + 6 x 6 = 36 strategy?
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