WEBVTT
00:00:03.320 --> 00:00:07.170
Michael was asked to solve six plus five.
00:00:08.680 --> 00:00:20.680
He wrote six plus five equals 11 because six plus six equals 12 and 12 take away one equals 11.
00:00:22.070 --> 00:00:24.580
Is his solution correct?
00:00:26.520 --> 00:00:30.310
Michael is trying to solve six plus five.
00:00:32.190 --> 00:00:35.140
He’s using a doubles fact to help him.
00:00:36.520 --> 00:00:43.290
The doubles fact that he’s using is six plus six is 12 or double six is 12.
00:00:45.000 --> 00:00:47.560
This model shows double six.
00:00:49.680 --> 00:00:52.300
Does double six equal 12?
00:00:54.130 --> 00:01:08.500
We could count on twos to help check: two, four, six, eight, 10, 12.
00:01:09.970 --> 00:01:11.630
Double six is 12.
00:01:13.320 --> 00:01:21.620
Michael also says that six plus five is 11 because six minus one is five.
00:01:23.510 --> 00:01:24.670
He’s correct.
00:01:25.720 --> 00:01:28.000
Six minus one is five.
00:01:28.740 --> 00:01:31.550
Six and five is 11.
00:01:32.640 --> 00:01:35.960
Or 12 take away one is 11.
00:01:37.770 --> 00:01:40.350
So his solution is correct.
00:01:41.920 --> 00:01:46.300
So the answer to the question is yes, his solution is correct.
00:01:47.550 --> 00:01:57.440
Michael said that six plus five is 11 because six plus six equals 12 and 12 take away one is 11.
00:01:58.990 --> 00:02:03.440
We proved he was correct, using our counters to help us.