Thursday October 10. 2019

Tremendous Thursday! 

We began the day with math. Today we continued learning about how to use ratios when working with scale diagrams. 

Scale Diagrams 

Scale Diagrams (or drawings) are often used to represent a smaller or larger object, shape or image.

The scale used will depend on the reduction or enlargement of the object. 

We learned how to use ratios to make scale diagrams. The first step when working with a scale we need to ensure that all measurements are the same unit.

Here is a website to support today's learning:

https://www.basic-mathematics.com/scale-drawings.html

Here is a slideshow to support today's learning:

https://slideplayer.com/slide/3950122/

Example:

1.

3cm=1.5 m

=3cm=150 cm

2.

Next, we need to ensure to simplify the ratio in order to be working with the smallest scale. So then

3cm=150cm

150 divided by 3 is 50

3 divided by 3 is 1 

=1cm=50cm

3. If we are given the actual measurement of the object, then we will be using our ratio to scale down our diagram. 

Example: An actual boat is 88m

Since we are working with cm, we need to ensure to covert 88m to cm = 8800cm

Next, we would use our scale (1:50) to scale down the actual measurement of the boat so that we would be able to draw a scaled down diagram. 

So, we would divide 8800 by 50 = 176cm = 1.76 metre

4. If we were given the measurement of the diagram we would be scaling up. For example, if the measurement of the length of the boat in a drawing was 27cm we would need to multiply by 50 since 1cm=50cm

So 27x50=1350cm which would be 13.5 metres

So the actual length of the boat is 13.5m. 

We reviewed our questions from yesterday to check for understanding and then continued working on more scenarios working with scale diagrams. 

Then we got into our literature circles for chapter 14. Is there a way out of Ember? Can Lina and Doon use the river to find a way out? 

After first recess and lunch we had French. 

Then we continued with our summative presentations. 

After second recess and lunch we wrote our own limericks based on our success criteria:

Success Criteria I describe the form of a limerick

• A limerick is an amusing verse of five lines
• Lines 1, 2, and 5 rhyme and lines 3 and 4 rhyme
• Line 5 refers to line 1
• Lines 3 and 4 are usually shorter than the other lines
• Lines 1, 2 and 5 have 8-9 syllables
• Lines 3 and 4 have 5-7 syllables 

Then we worked on our electric cars. 

Homework:

1. Read Daily
2. Math pg. 60-61 (4-6) - Most finished these questions in class
3. Read chapter 15 and role
4. Math sheets
5. Finish limerick
6. Finish International Day research and display