Tag Archives: mental math

Feeling Special!!

Happy Weekend!

What?!?!? It feels like it was just Monday!! They do say that time flies when you’re having fun…and Life in Room 123 is no exception 😀

I came home to this scene on Friday…I just had to share!

How many deer do you see?!
P.S. I have a regular Buck that hangs out in the yard…I’ve named him Hela …short for Hellebuyck 😉 #GoJetsGo

What. A. Week! (Let’s recap!)

– We told you our plans to contact Esta Spalding AND things couldn’t have been more exciting for us! I loved getting your responses about our news via See Saw! It was so great to hear that the kids came home and wanted to talk about how Esta actually wrote back to us (and promptly I might add!). It was also pretty cool to share what we wrote to Esta (through See Saw) before I sent away our letters. Can you believe that she’s going to send us a sneak peek of her newest…not yet published book?!!! She has made a believer out of us! Next up…writing to Jon Scieszka since we have finished Frank Einstein and the Anti Matter Motor?!?! Maybe!!!

-Now that you know we are done reading our latest read aloud you should know that we’ve already started another! It’s called The Unicorn in the Barn. At first there were a few skeptics, but it has started out in a pretty interesting way!

-This leads into this week’s Ask me question! The question reads “Ask me about read alouds in 123.” The goal is for the students to talk to their families about what we are reading (or have read) and why we read together. What learning happens during read aloud time? We had a chat about this and some great answers came up, such as:

-to talk about different types of books, to be introduced to new authors and series, to expand our vocabulary, to practice comprehension skills such as making inferences and checking for understanding, to make connections to other books and experiences and to hear how fluency, accuracy and expression is modelled. I love, love, love this time with the kids. I feel like we learn so much from each other during this time of day. Have a conversation and have the students write down some of the things you’ve talked about together about the read alouds of 123!

-Math! This week we made connections between place value and addition and subtraction. Below are some photos to show what we’ve done at school and suggestions for  you to do at home for those students who could benefit from extra practice 🙂 *Tip: Pay close attention to the + or – (that is one area the students are working on for sure. Makes a big difference if you are adding when you are supposed to be subtracting!)

Let’s review some math language for addition and subtraction!

Try doing some examples at home 🙂

What’s Happening Next Week?!

-No School on Monday! (Day 5)

-Tuesday we have our extra choir time for the Circle of Life performance in February. Day 6 is our most musical day! It is also Outdoor Education day, so please dress for the weather!

-We have 2 days with Murray next week. Our time with him is coming to an end 🙁 We will continue reading through our research and will put what we’ve learned into our own words. So far we are learning lots!!!

-Book orders are due on December 1!

-Genius Hour will happen again on Day 2 (Thursday). Everyone has an idea submitted. Some kids who had similar ideas have decided to join forces. Some kids have already changed their ideas. This is totally okay! Our interests may shift, the research that we were hoping for may not be out there, we may decide that the initial idea doesn’t work for the timeline we have…there are many reasons why our ideas could change. That’s part of the process. Has anyone come home and talked about Genius Hour at home yet?!

-We will try to post more math learning via See Saw. I really enjoyed having the kids find a skill they wanted to share with parents and have me film as they explained their learning, played a game they invented or worked through problems. This “choose your own math” time is a hit!

The Number Talks we’ve been doing are also a great way for the students to share their strategies, learn from each other and practice mental math.

Ask what the kids notice. Try to listen vs tell. We are more interested in the strategies used than the answer at this point

In the above example (which we did last week). We talked about how 39+16 seems challenging, but if we think of it as 40+15 instead, we feel more confident in answering the question “in our heads” vs working it out on paper! 39+16=40+15 and the actual sum is 55!

28+39=27+40

59+13=60+12

23+49=22+50

We can think of this as making “Landmark” or “Friendly” Numbers!

Before I go…Hudson has a message she wants to share with you!

Have a great weekend!

Until Next Time,

Danielle

May it really be the long weekend?!

Hi Everyone!

Here are some Friday evening thoughts as we head into the long weekend!

Women In Science & Engineering: We had a great time with Alex from W.I.S.E. and her program on the Science of Music! She talked to us about sound waves and about the connection between sound and the States of Matter (ask your kids about the domino experiment-videos are below!). She also introduced us to gramophones…which we googled and was invented in 1877! Pretty amazing!

*The “Solid” domino fall was so quick that I missed it!

“Liquid”

“Gas”

Gramophone

A World of Water: On Thursday afternoon we learned a lot about water, Lake Winnipeg, algae blooms and ways to fix our problems from Jay. He shared information and had us up and moving with some hands on learning!

Lake Winnipeg Foundation: Today (Friday) we heard from Ainslie who works at the Lake Winnipeg Foundation. She was very pleased with how much we know about algae blooms and thought we asked some great questions. Ainslie also talked to us about Zebra Mussels and how we need to be careful not to transport Zebra Mussels into our lakes. We are doing some writing about some of the environmental problems we’ve learned about and are trying to come up with creative solutions…then think of what kinds of problems our solutions have!

Upcoming Field Trip: On June 12, we are headed to Gimli for a field trip! During our time in Gimli we will be having different stations for the kids to go through. Our goal is to have the students take some water samples, do some sketching, make nature art with twigs/rocks we see on the ground, have some free play and do a walk around the community. We’ve been learning so much about Lake Winnipeg we would like to go and visit! This field trip will NOT be for swimming! The only time we will be going near the water is to possibly to take water samples where students will be supervised at all times. We are also asking that students bring a “litterless” lunch to follow our environmental mindset! Permission slips will be sent home soon 🙂

30×30: Our 30 for 30 challenge is still going strong! We just completed Day 19! Day 30 lands on Tuesday, June 6 (I believe). Maybe we should be spending the day outside to celebrate?! On that note…the last day of the at home 30×30 challenge is on Monday. I hope you have enjoyed your time outside and continue to spend as much time as possible in the great outdoors! This also means that my own challenge (and the kids who have also made a bonus challenge) also ends on Monday. I am having a grande latte on Tuesday morning! Don’t worry…I’ll still be using my reusable cup!

Mental Math: We have continued to review Mental Math strategies. This week we covered lots of ground!

Using Arrays: Since we have just finished up multiplication arrays are pretty fresh in our minds. An arrangement of objects or pictures in columns and rows is called an array.

Example for Arrays

Skip Counting to Find a Product: We all know how to skip count…we’ve been doing it for years! Now it’s time to use skip counting to solve multiplication problems. For example: if we want to know what 5×5 and we don’t know this fact by instant recall we can count by 5s five times (5,10,15,20,25). Therefore 5×5=25!

Building on a Known Double: We are pretty comfortable with our doubles facts (and if we cannot recall these facts up to 20+20 then this is something to practice), now we need to relate doubles to halves! For example: if we know 10+10=20 then 20-10=10!

Using Doubles +/-1: Now we can use what we know about doubles and apply that to near doubles. Near doubles occur when the two addends only have a difference of one. For example: 8+9 (the difference between 8 and 9 is 1 :)) Now you have a choice…you can think of this question as a) 8+8+1 (16+1=17) (Doubles +1) OR b) 9+9-1 (18-1=17) (Doubles -1).

Using Doubles +/-2: This is very similar to the Doubles +/-1 strategy EXCEPT…you guessed it!!! The difference between the addends is two! For example: 15+17 (the difference between 15 and 17 is 2 :)) Now you have a choice…you can think of this question as a) 15+15+2 (30+2=32) (Doubles +2) OR b) 17=17-2 (34-2=32) (Doubles -2).

Using Addition to Subtract: This is when knowing about Fact Families comes in handy! Fact Families are 3 numbers that are related, just like the people in a family are related!! The 3 facts make a set of 4 number sentences 🙂 When you see 11-7=? you can switch that to an addition fact instead. Now this question can be changed to 7+?=11. It might be easier or quicker for you to solve this question by adding instead of subtracting.

Fact Family: Part +Part =Whole & Whole-Part=Part

In the first question the 11 is the whole, and the 7 and 4 are the parts

7+4=11 (part+part=whole)

4+7=11 (part+part=whole)

11-7=4 (whole-part=part)

11-4=7 (whole-part=part)

When we reviewed this strategy we also talked about the ‘unknown’ in a question. There is always an unknown, but the place of the unknown can change. We are used to having the unknown at the end of a question (the sum for addition, difference for subtraction, product for multiplication and quotient for division). However the unknown can be any part of the question. In the above example we changed the ‘unknown’ from being the difference (a part) in a subtraction question to a missing addend (a part) in an addition question.

*Once again…we are practising all these grade appropriate Mental Math strategies and students need to know then exist and how to use them and explain them BUT will have their ‘favourite’ strategies and develop their own strategies as well.

Division: This first week of division has gone fairly well! The students are understanding the concept of division as objects being shared into equal groups. They are also finding the relationship between multiplication and division and using the commutative property and fact families to demonstrate this relationship! If your child is needing more practice try giving them objects (chocolate chips, rocks, paperclips, etc.) and asking them to share equally into X groups then ask how many are in each set. For example: Give them 12 chocolate chips and ask them to share them into 4 groups. One at a time they will put one chocolate chip into each set. 1,2,3,4 then add a second chocolate chip into the first set, then second set, etc. until there are no more chocolate chips. At then end there should be 4 sets of chocolate chips and 3 chocolate chips in each set. *Remember to give them problems that do not have a remainder since we are not at that point yet!

Buzz Math: Today we tried out a new program called Buzz Math! This is an online program similar to Dream Box, but not affiliated with the School Division. Each student has a user name (first name and first two letters of their last name) and they have a password (which they know!). We got logged in and used Buzz Math for about 45 minutes today and it was a hit. You are welcome to use it at home too. Just log on the same way as we did at school. See me if you have questions about logging on. I am learning with the group, so we will see where this takes us!

Buzz Math Homepage

Ask Me…This weekend’s Ask Me question is to do an extra 30 minutes of outdoor fun and let me know what you were up to! I am heading to the lake so I am looking forward to this too! The forecast doesn’t look great, so it also might also be a good time to get some reading in! All students have next week’s tracking sheet in their folder 🙂 I’ve noticed that many students are not reading regularly and not bringing their home reading folders in regularly either. I know everyone is busy but reading is very important and a great daily habit to get into. I’m hoping for 25 completed reading folders and Ask Me questions on Tuesday morning!!!!

I found a list of reasons of why kids need books…take a peek if you have time 🙂

Why Do Kids Need Books?

Creativity: Earlier in the week I showed the class a video from youtube about the loss of creativity at school and at work. I had seen the short film on Twitter and it made me sad. Then it made me think. Then it reaffirmed what we are trying to create in our class. I thought I’d post the link on here in case any of the kids were talking about it and you wanted to see 🙂

 

Have a really great long weekend. I look forward to hearing everyone’s stories during our sharing time on Tuesday morning.

Until next time,

Danielle