<![CDATA[Finding area of triangle - puzzled]]>

Lynn2010:
Hmmm.... simkhoo, thanks for the response. I think so.

Maybe the MOE show in the text book as 1/2 x base x height and the teachers just follow. So, yes, in theroy, the teacher is correct - MOE way because they dont see other variations
It may also be that it's a new concept that this child's class has just been taught? Teachers are often stricter initially to make sure the kids really know the forumula, then ease off as the year progresses, or as they go to the next level.

]]>https://forum.kiasuparents.com/topic/86033/finding-area-of-triangle-puzzledRSS for NodeMon, 04 May 2026 23:22:26 GMTMon, 11 Apr 2016 04:42:06 GMT60<![CDATA[Reply to Finding area of triangle - puzzled on Mon, 11 Apr 2016 04:30:26 GMT]]>

jetsetter:
Lynn2010:

Hmmm.... simkhoo, thanks for the response. I think so.

Maybe the MOE show in the text book as 1/2 x base x height and the teachers just follow. So, yes, in theroy, the teacher is correct - MOE way because they dont see other variations


the short cut presentation is allowed in sec school...

Guess in pri school, they are grilling on foundations. Maybe they want slower kids to understand that when they slice the area of a rectangle/square/parallelogram (b x h) exactly into half, you get area of a triangle. Some schools might get them to do origami to understand this basic concept before equilateral, isosceles and scalene triangles appear in their worksheets.

The '1/2' is there to reinforce the concept?? 🤷

Same reasons why they tell them in 3 X 5, first number 3 refers to the 'group'.

Maybe to help the kids to understand the concept, have to explain why half a cake is somehow not equal to the cake divided by 2. 😉 :siam:

Of course, if one applies Occam's Razor, the conclusion will be that the particular teacher was wrong. That's all.

]]>https://forum.kiasuparents.com/post/1666528https://forum.kiasuparents.com/post/1666528Mon, 11 Apr 2016 04:30:26 GMT<![CDATA[Reply to Finding area of triangle - puzzled on Mon, 11 Apr 2016 04:26:13 GMT]]>

Lynn2010:
Hmmm.... simkhoo, thanks for the response. I think so.

Maybe the MOE show in the text book as 1/2 x base x height and the teachers just follow. So, yes, in theroy, the teacher is correct - MOE way because they dont see other variations
DS's teacher allows it, most of the times he doesnt even write the formula :stupid: just calculates it.

]]>https://forum.kiasuparents.com/post/1666526https://forum.kiasuparents.com/post/1666526Mon, 11 Apr 2016 04:26:13 GMT<![CDATA[Reply to Finding area of triangle - puzzled on Mon, 11 Apr 2016 04:14:19 GMT]]>

Lynn2010:
Hmmm.... simkhoo, thanks for the response. I think so.

Maybe the MOE show in the text book as 1/2 x base x height and the teachers just follow. So, yes, in theroy, the teacher is correct - MOE way because they dont see other variations

the short cut presentation is allowed in sec school...

Guess in pri school, they are grilling on foundations. Maybe they want slower kids to understand that when they slice the area of a rectangle/square/parallelogram (b x h) exactly into half, you get area of a triangle. Some schools might get them to do origami to understand this basic concept before equilateral, isosceles and scalene triangles appear in their worksheets.

The '1/2' is there to reinforce the concept?? 🤷

Same reasons why they tell them in 3 X 5, first number 3 refers to the 'group'.

]]>https://forum.kiasuparents.com/post/1666521https://forum.kiasuparents.com/post/1666521Mon, 11 Apr 2016 04:14:19 GMT<![CDATA[Reply to Finding area of triangle - puzzled on Mon, 11 Apr 2016 02:16:02 GMT]]>Hmmm… simkhoo, thanks for the response. I think so.

Maybe the MOE show in the text book as 1/2 x base x height and the teachers just follow. So, yes, in theroy, the teacher is correct - MOE way because they dont see other variations

]]>https://forum.kiasuparents.com/post/1666418https://forum.kiasuparents.com/post/1666418Mon, 11 Apr 2016 02:16:02 GMT<![CDATA[Reply to Finding area of triangle - puzzled on Mon, 11 Apr 2016 00:47:12 GMT]]>Probably it’s because they require the student to spell out the formula in the full form? But of course it’s the same in terms of results. It’s probably a "primary school teacher" issue.

]]>https://forum.kiasuparents.com/post/1666364https://forum.kiasuparents.com/post/1666364Mon, 11 Apr 2016 00:47:12 GMT<![CDATA[Reply to Finding area of triangle - puzzled on Sun, 10 Apr 2016 12:31:27 GMT]]>Anyone??

]]>https://forum.kiasuparents.com/post/1666251https://forum.kiasuparents.com/post/1666251Sun, 10 Apr 2016 12:31:27 GMT