Units Matter! A costy mistake

Do you know that NASA lost the $125 million Mars Climate Orbiter due to an error in unit?  

Learn more about this: 

• From CNN.com: Metric mishap caused loss of NASA orbiter
• A blog post in SIMSCALE: NASA’S LOST SPACECRAFT The Metric System and NASA's Mars Climate Orbiter

Looking at numbrs, statistics from another perspective: Information VS misinformation

 

Construction: Hologram activity

 Click HERE to post your work

Geometrical Construction: Quadrilaterals (b)(c)

 Study Notes (p11, p12)

(b) Construction of Parallelogram

Click HERE

(c) Construction of Quadrilateral

Click HERE

(Class work) Review: Relationships of Lines

Geometrical Construction: Triangles (c)(d)

Study Notes (p7, p8)

TRIANGLE (c) Click HERE

TRIANGLE (d) Click HERE

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Class Work: Where will they meet?

This activity involves construction of triangles (given specific properties) and application of perpendicular bisectors.

Geometrical Construction: Perpendicular Bisector

 This is a task carried out during lesson. 

Post a photo of your work as an evidence that you could construct the pair of perpendicular bisectors. Remember that the pencil marks (especially the arcs) are clear.

Click HERE to access padlet

Geometrical Construction: Angle Bisector

 This is a task carried out during lesson. 

Post a photo of your work as an evidence that you could construct the pair of perpendicular bisectors. Remember that the pencil marks (especially the arcs) are clear.

Click HERE to access padlet

Exploring: ORDER of ROTATION

 Click HERE to access the activity

Mathematics in Handicraft: Corner Bookmarks

Do you notice that the link between basic Geometrical Shapes and Origami?

Can you tell what are shapes formed and the angle properties that are commonly used in origami?



Going deeper: Linking Mathematics and Physics... through Origami




YOUR MISSION

As you create your bookmark, observe how the square has transformed.

• Post a photo of your bookmark here.
• List down as many mathematical terms as possible that you can think of, that are related to this activity.
• You may also want to describe any relationship that you see in the process.

Click HERE

Polygons: Investigative activity - Interior and Exterior angles

 Click HERE to access padlet

Polygons: Who am I?

 Click HERE to access form

Click HERE to access responses

Dimensions...

Let's hear the transition from 0 dimension to .... dimension!

THINK: What helps us define dimension?

Click HERE to access clip from Youtube




You may read more about dimensions HERE

[Challenging Question] Solve the Unstoppable Blob Riddle!

"Watch" the challenging question and take note of the given conditions before solving the problem.
Amazing to see how polygons save the world!

Hexagons: What I already know. What I know.

Click HERE to access link.

Click HERE to view responses

Concept Cartoons: Angle Properties

 Click HERE to access the task.

Click HERE to view responses

Class Work: Graph Sketching

Study Notes (p24)

Click HERE to access padlet

[HW4: PART 1] Concepts of Gradient & Vertical Intercepts

Study Notes (p14-p15) Estimated Duration: 15 minutes

We are going to find out the graph of a straight line in the form of y = mx + c changes when either m or c varies

1. Go to the following website to access the online Desmos file
URL: https://www.desmos.com/calculator/9rwlqrptu2

2. Record your observations on the behaviour of the graph
A list of words that might be useful when filling in the blanks: 
Upward | Downward | Rotate | Slant | Gentle | Steep | Horizontal | Vertical | Perpendicular | Parallel | Gradient | Positive | Negative | Zero | x-intercept | y-intercept | intersection | x-coordinate | y-coordinate | Direction 


3. Upload IMAGES of your completed work (p14-p15) as 2 separate posts in the padlet:
Click HERE to access.

[HW4: Part 2] Finding Gradient & Intercept to form Linear Equation

Click HERE to access padlet

You may find the following useful before doing the task above - to recap GRADIENT