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Using Patterns in Problem Solving ...

5/27/2020

Do you remember the three different kinds of patterns that we learned about this year?
We learned about repeating patterns like ABCABCABCABCABC.
We learned about growing patterns like 5,10,15,20,25,30. (numbers get bigger)
We learned about shrinking patterns like 20, 19, 18, 17, 16, 15 (numbers get smaller)

Here is the word problem from Wednesday:
My hen lays 2 eggs on Sunday, 4 eggs on Monday, and 6 eggs on Tuesday. Using pictures, numbers, and words, tell me how many eggs all together will my hen will lay by the end of the week?

Which type of pattern are you thinking about when you solve this word problem?
All of my friends interpreted the question in a different way.
Some used a repeating pattern and some used a growing pattern.
Some figured out how many eggs the hen lay each day and gave me the total for Friday or Saturday (depending on how you think of "end of the week").
Some added all of the eggs from each day together and told me the total amount.

No one way was right or wrong. As long as you used numbers, pictures, and words to justify your math thinking ... you are right! :)

Place Value ... "Tens and Teens"

5/26/2020

This week in Khan Academy, you are looking at Place Value (tens and ones). Here are some extra videos to reinforce key ideas:

If you have a printer and would like some extra pencil and paper practice, here are some extra worksheets

firstgrademathunit9placevalue2.pdf
File Size:	109 kb
File Type:	pdf

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firstgrademathunit9placevalue3.pdf
File Size:	56 kb
File Type:	pdf

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firstgrademathunit9placevalue4.pdf
File Size:	57 kb
File Type:	pdf

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Probability (A Vocabulary Review)

5/25/2020

Don't peek! See if you can answer the questions above correctly before we go on.
Answers:
1. less likely 2. less likely 3. more likely 4.more likely

Now you know the math words: less likely, more likely, possible, impossible, fair, and unfair.
Another way to say "fair" is "equal chance". If I flip a coin there is an equal chance that it will be heads or tails. This is fair.
The last one to learn is "certain". This means that something will happen. An example would be "It is certain that the sun will come up in the morning and go down in the evening". Can you think of other things that are certain to happen?

Using Grade 1 math words, answer these questions in a Super Grade One Sentence:

1. What is the probability of your spinner landing on yellow?
What is the probability of your spinner landing on red?

2. What is the probability of landing on red?
What is the probability of landing on blue?
What is the probability of landing on yellow?

3. What is the probability of landing on green?
What is the probability of landing on blue?
What is the probability of landing on yellow?

If you have a printer and some coloured pencils or crayons, you can download this worksheet for extra practice.

probabilitymarbleslikelyandunlikely.pdf
File Size:	293 kb
File Type:	pdf

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What Are the Chances?

5/20/2020

Yesterday, your job was to look at this jar of marbles and tell me:
1. What do you notice?
2. What do you wonder?
3. If you closed your eyes and reached into the jar, which colour would you probably pick?

Here's what some of you said:
Ben - "I see 5 purple and 3 yellow balls. I wonder if they are candy? I think I would pull out a purple one because there are more"
Razeen - "purple because most of them are purple"
Tony - "if I reached in I would get more purple than yellow"
Subhan - "probably I'll get purple because it's the most"
Sukaina - "purple because there are more purple than yellow"
Sara - "purple because there is more purple gum than yellow gum"
Hassan - "you would probably pull out purple because there are more"

Yes! You are all right! You would probably pull out a purple because there are more purple than yellow.
In Grade One, we would use math words to explain it like this - you are more likely to pick purple and less likely to pick yellow.

Now, let's try a couple more ...

Question 1.
Which of these are you more likely to pick?
Which are you less likely to pick?

Question 2
Which colour(s) are you most likely to pick?
Less likely?
If this was a spinner for a game, would it be a fair spinner?

Question 3
Which colour(s) are you most likely to pick?
Less likely?

Possible or Impossible - Looking at Probability

5/18/2020

Probability
"By the end of Grade 1, students will: – describe the likelihood that everyday events will occur, using mathematical language (i.e., impossible, unlikely, less likely, more likely, certain) (e.g.,“It’s unlikely that I will win the contest shown on the cereal box.”)."
THE ONTARIO CURRICULUM, GRADES 1–8: MATHEMATICS

The video above explains the difference between "possible" and "impossible". Can you tell me three things that would be possible to happen and three things that would be impossible to happen? (not in the video)

Symmetry

5/13/2020

Look closely at the pictures below. Can you see how they are all the same?

If you said that they look the same on both sides you are on the right track! This is something we call symmetry. Watch the TVO video below to learn more about symmetry.

Balancing Equations

5/10/2020

Remember last week we saw a couple of videos about what the "=" sign means? Think of it as the middle of a scale and that both sides have to be the same for the balance to not tip to one side. If we were together I would have a real balance and we would take turns putting cubes in the pans on the balance. Since we aren't together we are going to use a balance on my kitchen cupboards that show that both sides in the picture are equal. Do you see that the left side has the number sentence "4+7"? You know that means "11". I used post its and showed different ways to make "11" on the other side. Both sides are equal.

Now, look at the balance below. You can draw a balance on a piece of paper and show me all the ways to make the balance equal.

If you would like some extra practice, here are some pdf practice pages:

balancingequations1.pdf
File Size:	98 kb
File Type:	pdf

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balancingequations2.pdf
File Size:	98 kb
File Type:	pdf

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balancingequations3.pdf
File Size:	98 kb
File Type:	pdf

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balancingequations4.pdf
File Size:	99 kb
File Type:	pdf

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Using Patterns in Problem Solving ...

Place Value ... "Tens and Teens"

Probability (A Vocabulary Review)

What Are the Chances?

Possible or Impossible - Looking at Probability

Symmetry

Balancing Equations

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