Teacher's reflections: Students were asked to perform the activity in pairs. The students are subtracting decimal numbers. In the video they are using blocks to do the activity. They had taken a 100 block as a whole and they are subtracting 0.23 from 0.52
They have shaded 5/10th and 2/100th and they are crossing out 2/10th and 3/100th precisely and getting the answer.
Students were able to perform the activity precisely except of 2 groups who struggled during subtracting 0.03 from 0.02 ... at that time I helped them by asking that if these were whole numbers how would you subtract them?
They have shaded 5/10th and 2/100th and they are crossing out 2/10th and 3/100th precisely and getting the answer.
Thanks for posting this. I love the conviction with which the child is able to explain the process for calculation.This lesson touches upon these mathematical practices explicitly
ReplyDelete-MP 1: Make sense of the problem and persevere.
-MP 3: Construct viable arguments and critique reasoning of others.
-MP 4: Model with Maths
-MP 6: Attend to precision
-MP 7: Look for and make use of structure.
I would love to hear from others how they think they can create opportunities in the lesson for strengthening these practices. for eg - By asking the children to discuss and justify the calculation and answers we can focus on MP3