Sunday, February 1, 2009

TG02 Daniel, Jonas and Sham

What is Alternative Assessment?
Alternative assessment focuses other assessment modes other than the traditional pen and paper tests. Alternative assessment also focuses more on how students learn rather than the learning results.

The Problem




In this example, we will explore mathematics skills of spatial visualisation. Pupils will be asked to use manipulatives and visualise how to solve the problem. Rubrics on how the pupils will be assessed on their learning are also shown below.

The concepts covered include:
• use of formulae to calculate the area and circumference of a
circle,
• finding the area and perimeter of
∗ semicircle (half circle)
∗ quarter circle
• solving word problems involving area and perimeter.

Rubrics for Assessment of Pupils


Manipulatives To Be Used

Step 1: (Image 1)

Pupils are presented with two manipulative, a pink and a green manipulative resembling the image in the question.




Step 2: (Image 2)

Pupils will place the green manipulative onto the pink manipulative to recognise that the length of both is the same (based on the dotted lines) however the circumference of both the semicircles are different.




Step 3: (Image 3)

Pupils will then apply their thinking skills to visualise that both the semicircles can be cut off from the pink manipulative to form a circle, leaving behind a rectangle.

Pupils will see that Runner X has run the length of the rectangle and the circumference of the circle.



Step 4: (Image 4)

Pupils will apply the same step from above to visualise that both the semicircles can be cut off from the green manipulative to form a circle, leaving behind a rectangle.

Pupils will see that Runner Y has run the length of the rectangle and the circumference of the circle.

By obtaining the lengths of the rectangles and the circumference of the circles, pupils will obtain the perimeter of both the pink and green manipulative respectively, thereby obtaining the answer to the question.





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