Tuesday - Take one of your models, strategies, etc. from the Whole number addition and subtraction section and post it and tell why you picked this one and then comment on someone elses.
I picked the take away method for subtraction. This is the easiest method for students understand and until the students can master this method they cannot use any other types of algorithms.
Julie had 20 gumballs. She gave 6 gumballs to her brother Max. Then she gave 1 gumball each to her friends Sally, Heather, Lucy and Gertrude. Using the "Take Away" Method solve how many gumballs Julie has left. 20 - 6 (Max) = 14 14 - 1 (Sally) = 13 13 - 1 (Heather) = 12 12 - 1 (Lucy) = 11 11 - 1 (Gertrude) = 10 Answer: Sally has 10 gumballs remaining.
To Caroline: I think you did an excellent job with that problem. I like how you changed 40 into 100 by adding 60. 100 is much easier to subtract than 40 and the solution was simpler to find.
Katie: I liked the fact that you used gumballs in the word problem. Using objects that are relevant to the students is very important in order to keep their attention.
Tuesday Assignment Helen I choose the missing addend I find it easier for students to understand adding numbers together first. 4+n=6 Betty had four apples and Bob gave her two more how many apples does betty have now 6? How many apples did she have to add to 4 to get 6?
Katie that was a good idea for subtraction using gumballs. I used apples somthing to get a child attention plus it is nutrition if they decide can I have one
Caroline, I agree with you. Until this class I have never heard of The Equal Addition Model..It works. As a teacher I'm not sure I would use it a lot. However, it is good to introduce the students to different ways to solve a problem.
I choose the missing addend. I like this one because I think it is helpful for student to learn and see how to subtract easier. I also like it because they are adding and subtracting at the same time.
i like this method for the same reason Ellen does. Students usually seem to do really well with addition, but students tend to tense up when they begin subtraction. This way the students are learning to subtract and they can see the direct correlation between addition and subtraction.
I decided to use the Equal Additions method because I had never heard of this method prior to our class and I wanted to try it out a bit more.
ReplyDelete321
-38
321 + 2
-(38 + 2)
323
-40
323 + 60
-(40+60)
383
-100 =
283
I picked the take away method for subtraction. This is the easiest method for students understand and until the students can master this method they cannot use any other types of algorithms.
ReplyDeleteJulie had 20 gumballs. She gave 6 gumballs to her brother Max. Then she gave 1 gumball each to her friends Sally, Heather, Lucy and Gertrude. Using the "Take Away" Method solve how many gumballs Julie has left.
20 - 6 (Max) = 14
14 - 1 (Sally) = 13
13 - 1 (Heather) = 12
12 - 1 (Lucy) = 11
11 - 1 (Gertrude) = 10
Answer: Sally has 10 gumballs remaining.
To Caroline: I think you did an excellent job with that problem. I like how you changed 40 into 100 by adding 60. 100 is much easier to subtract than 40 and the solution was simpler to find.
ReplyDeleteKatie: I liked the fact that you used gumballs in the word problem. Using objects that are relevant to the students is very important in order to keep their attention.
ReplyDeleteTuesday Assignment Helen
ReplyDeleteI choose the missing addend I find it easier for students to understand adding numbers together first.
4+n=6
Betty had four apples and Bob gave her two more how many apples does betty have now 6? How many apples did she have to add to 4 to get 6?
Katie that was a good idea for subtraction using gumballs. I used apples somthing to get a child attention plus it is nutrition if they decide can I have one
ReplyDeleteI choose the take-away model because you can illustrate subtraction a lot easier by using something the children are interested in and taking it away.
ReplyDeleteProblem: Sarah had won 6 candy apples at the fair. Her mom took away 3...How many candy apples do Sarah have left? Answer: 3
I would buy 6 candy apples and place them on the table and have a student take 3 away ...that will allow them to visualize how many are left.
Caroline, I agree with you. Until this class I have never heard of The Equal Addition Model..It works. As a teacher I'm not sure I would use it a lot. However, it is good to introduce the students to different ways to solve a problem.
ReplyDeleteI choose the missing addend. I like this one because I think it is helpful for student to learn and see how to subtract easier. I also like it because they are adding and subtracting at the same time.
ReplyDelete10+x=14
Yulanda-
ReplyDeleteI really like that method as well. I think it is a great way for younger students to begin learning!
Ellen
Missing Addend
ReplyDelete6 + x = 10
i like this method for the same reason Ellen does. Students usually seem to do really well with addition, but students tend to tense up when they begin subtraction. This way the students are learning to subtract and they can see the direct correlation between addition and subtraction.
Ellen I did a similar problem to yours so obviously i like it!
ReplyDeleteThe answer to your problem is x = 4
Ellen I did a similar problem to yours so obviously i like it!
ReplyDeleteThe answer to your problem is x = 4