Good afternoon everyone!
I hope everyone has had a wonderful week – please remember that there is no school tomorrow.
DRA graphs also went home today. I will be discussing these through the unit phone calls & emails.
A reminder about International Day:
A few quick reminders:
· Monday is a Day 4 (students will need their gym uniforms).
· For anyone who ordered Hot Lunch, payments were due Wednesday, October 2nd, 2019.
· Aftercare invoices for the month of September have come out and are due on the Tuesday, October 15th, 2019. Any questions can be directed to Ms. Chiappetta at echiappetta@stjudesacademy.com
· Casual day forms were sent home last week and should be sent back signed with $20 for anyone participating.
We began this morning by playing a house game! Great job to Kappa on their victory today!
Music – Then, we had music with Mr. Oliver, which you can read about on his blog (https://mrolivermusicclass.blogspot.com).
French – Right after this, we had French with Mme. Stella, which you can read about on her blog (https://stjudesfrench-stella.blogspot.com).
Inquiry into Math – Today, we continued yesterday’s lesson. Here is a quick review of what we’ve done so far in this unit…
Lesson 2.1 – What is a Ratio?
A ratio is mathematically used to compare two things. For example, if I have 3 blue counters, 4 green counters, and 5 red counters, I have a total of 12 counters.
I can write a ratio comparing a part of my total to the whole number. This is called a part-to-whole ratio. For example, I have a ratio of 5:12 (this is the ratio of red counters to the total number of counters).
I can write a ratio comparting a part of my total to another part. This is called a part-to-part ratio. For example, I have ratio of 3:5 (this is the ratio of blue counters to red counters).
We use ratios all the time when we do recipes for example. They are very practical in the real world!
Lesson 2.2 – Equivalent Ratios
An equivalent ratio is when you multiply or divide the terms of a ratio by the same number. For example, let’s say we have 4 squares and 3 triangles. The ratio of squares to triangles is 4:3. But what if the ratio is 4:3 but I have 6 triangles? Since 3 x 2 = 6, I must multiply 4 by 2 as well to ensure my ratio is equal. Since 4 x 2 is 8, the new ratio is 8:6.
A ratio is mathematically used to compare two things. For example, if I have 3 blue counters, 4 green counters, and 5 red counters, I have a total of 12 counters.
An equivalent ratio is when you multiply or divide the terms of a ratio by the same number. For example, let’s say we have 4 squares and 3 triangles. The ratio of squares to triangles is 4:3. But what if the ratio is 4:3 but I have 6 triangles? Since 3 x 2 = 6, I must multiply 4 by 2 as well to ensure my ratio is equal. Since 4 x 2 is 8, the new ratio is 8:6.
Lesson 2.3 – Comparing Ratios
To compare ratios (just like comparing measurements), we must ensure that either both first numbers or both second numbers are the same. To do this, we write an equivalent ratio to the ones we are given.
Let’s say we have two pizzas. The first has 6 slices and 20 pieces of pepperoni. The second has 8 slices and 22 pieces of pepperoni. Which one has more pepperoni per slice?
We find the LCM of 6 & 8, which is 24.
Pizza #1 – 6:20 à x 4 à 24:80
Pizza #2 – 8:22 à x 3 à 24:66
We wrote two equivalent ratios with 24 slices of pizza. Since pizza 1 has 80 pieces of pepperoni for every 24 slices and pizza 2 has only 66, we know that pizza 1 has more pepperoni per slice.
To review, when converting a smaller unit to a larger unit, you divide. When converting a larger unit to a smaller unit, you multiply. Here are our conversions:
· mm à cm – move one decimal place left (divide by 10)
· cm à m – move two decimal places left (divide by 100)
· m à km – move three decimal places left (divide by 1000)
· km à m – move three decimal places right (multiply by 1000)
· m à cm – move two decimal places right (multiply by 100)
· cm à mm – move one decimal place right (multiply by 10)
Just like comparing ratios, we cannot properly apply ratios unless our units are the same. For example, if you are looking at a map scale, you can’t write that the scale is 1:5 when 1 is measures in centimetres and 5 is measured in metres. First, you would convert 5 m into centimetres. 5m = 500 cm. Then, you could write the ratio of 1:500.
We looked at Gulliver’s Travels, a book where Gulliver (1.8 m tall) meets little people who are 15 cm tall and giants who are 18 m tall.
First, we write everything in the same units.
· Little people: 15 cm
· Gulliver: 1.8 m x 100 = 180 cm
· Giants 18 m x 100 = 1800 cm
Now, we can write these as equivalent ratios, and simplify them to determine the ratios of how tall each of these people are in comparison! For example, Gulliver:giants = 180:1800. When you divide by 180, you get a ratio of 1:10. Therefore, the giants are 10 times as tall as Gulliver!
You also use this for scales when drawing diagrams (such as a map or a house).
I sent home the mid-unit reviews today. Many marks were lost due to not showing work in several questions where it was asked. This review was a homework completion mark and will not be used for their final marks during this unit. We went over procedures for showing work today again.
We will be looking at rates on Tuesday.
Inquiry into Energy – Today, students presented their summative presentations.
Inquiry into Language – We ended the day by sitting in our literature circle groups and had a discussion about chapter twelve. Every day I will be sitting down with a different group to hear these discussions. A reminder of the roles:
1. The discussion director comes up with insightful questions that will fuel discussion in the group.
2. The literary luminary chooses important passages for the group to read and discuss.
3. The connector makes connections between their own lives and the book (i.e. movies, other books they’ve read, real events, the current UOI, etc.)
4. The illustrator/mapper creates an illustration (i.e. comic, picture, mind map, etc.) based on what they felt during the chapter for the group to discuss.
5. The word wizard chooses 3 words that were interesting or new for everyone to discuss as a group.
As a reminder, here are the International Day groups:
· Joshua & Marcus – Music, Dance, & Art
· Adn & Karina – Food
· Jashina & Sophia – Imports & Exports
· Ahil & Karthik – Laws & Government
· Dhairya & Gokul – Sports & Games
· Rajan & Krina – Customs, Festivals, & Traditions
· Hassan & Daniel – Architecture, Attractions, & Famous Places
· Clothing – Jaya & Caitlyn
Homework:
We do our best to complete work in class. In the event this is not possible, it will go home for homework.
As always, please feel free to email me with any questions.
Mr. Conte
