Term 2 Wk4 - 4T1 Maths - Vol and Surface Area of Pyramid

It seemed easier initially to teach this topic to 4T1 class as they can grasped the concept quickly but have difficulty remembering the formula. It could be that the students are well versed in 3D model in their D&T lesson. Decided to show the students a video clip on the how the formula come about. This solved the "remembering formula" problem = 1/3 x base area x height = relating to square prism to the no. of pyramid required to fill it up with water/sand. Students were tasked to do the textbook questions later so as to ascertain if they could do those questions that re-orientate the 3D pyramid especially those involving multiple sides with different base length. This proved difficult for some students and I had to render help along the way. Through this session, it showed that we could assume certain things about our students but we need to ascertain/re-confirm it before deciding the follow-up instructions in order to help our students to leap to the next level of understanding and skills.

Hwee Hwee's AFL on System of Marking Homework

My existing method of marking assignment is quite different from Hwee Hwee's new method. I will not give marks for each question, just a tick for correct working or cross for wrong ones. However, for wrong workings, I will give small tick to the line where the working is correct and then circle the next one where the student makes a mistake. In this way, the student is aware exactly what is wrong. Definitely some comments are necessary. I believe the AFL method of marking homework is better method to implement but will involve a little more time to just give marks tagged to each question. Will try to use this method for the next assignment onwards and see how it affects the student and our work.

Term 2 Week 3 - 4T1 Mathematics - Arc Length and Area of Sector

Did Arc Length on Monday and Area of Sector on Wednesday. Class were always ready for lesson and on task except for some disruptive boys (just being playful). Quite difficult to bring across the concept of proportion to get the formula for Arc Length and Area of Sector. What the students did were just to memorise the formula. I believe for NT class, this may be sufficient as long as they can do the questions. One major mistake is not having the habit of writing down the units (square cm or degree). Generally the class is gearing up to prepare for their N level exam this year.