MAP102 Problem Solving Heuristics in Primary Mathematics www.banhar.blogspot.comDr Yeap Ban HarMarshall Cavendish Instituteyeapbanhar@gmail.comVenue: Singapore Teachers’ Union
In today’s class we will use the following heuristics:• Act it out• Draw a diagram• Solve a simpler problem• Solve part of a problem• Draw a table• Look for a pattern• Use algebra
Assuming Sam did not spend his money: Jason had $837 - $360 - $270 Jason = $207 at first. Edward had $360 at Edward first. HeuristicsDraw a Diagram Sam Sam had $270 at first. $837 - $648 = $189 $189 x 3 = $570 - $3 = $567 $837 - $567 = $270 Jason had $207 at first.
We used 9 sticks to make three differentarrangements with four such triangles.The least number of sticks used is 6!
We also solved these which were raised by participants Each symbol stands for a number. + + + + + = 40 x = 40 What number does stand for? 11 trees are in a road. The distance between each tree is equal. The distance between the 1st tree and 4th tree is 18m. Find the distance between the 1st tree and last tree.