Ms. Barrington's Class
  • About
  • Newsletter
  • Seesaw Blog
  • GR 3
    • Grade 3 At-a-Glance
    • Language Arts >
      • Reading
      • Writing
      • Word Work
    • Math >
      • Statistics and Graphing
      • Patterns
      • Whole Numbers
      • Addition And Subtraction
      • Measurement
      • Fractions
      • Geometry
      • Multiplication and Division
    • Science >
      • Rocks and Minerals
      • Building and Materials
      • Hearing and Sound
      • Animal Life Cycles
      • Science Fair
    • Social Studies >
      • Mapping
      • Communities in the World
      • Global Citizenship
    • Health
    • Leader in Me
    • Art
    • Video Yearbook
  • T&T
  • Links
    • FMPSD Website
    • Christina Gordon Website
    • Art for Kids Hub
    • Code.org
    • Dance Mat Typing
    • DOGO News
    • Epic!
    • EverFi
    • Exambank
    • FlipGrid
    • GoNoodle
    • Kahoot!
    • LearnAlberta
    • Math Makes Sense
    • Math 5 Live
    • Mathletics
    • PBS Kids: Math Games
    • Spelling City
    • TumbleBooks
    • Tynker
    • Wonderopolis
  • Contact

Grade 3B Info., Updates, News

Wait until you see what we've been up to...

February 8th, 2017

2/8/2017

0 Comments

 

Today in Math we began using the estimation strategies that we learned in our Whole Numbers unit to help us estimate the answers to multiplication questions involving larger numbers. Today we focused on compatible numbers and compensation. Take the example below:

Picture

When trying to multiply 48 x 8 we can use a compatible number strategy to help us. We can change 48 to 50. 50 is a more compatible number because it ends in a zero. Why does that make it more compatible? Because we already know how to multiply by multiples of 10, 100, and 100! To solve 50 x 8 we can use the multiplication fact 5 x 8; since we know that 5 x 8 = 40, we know that 50 x 8 = 400 (just add a zero, or go up one place value place). Look at the example below: 

Picture

Julia delivers 215 flyers each day. There are 7 days in a week. To discover how many flyers Julia delivers each week we can add 215 seven times OR we can use multiplication: 215 x 7. Since the question asks us, "about" how many flyers, we can use estimation. We can use compatible numbers. We can change 215 to 200. This is a multiple of 100 which is easier to use. When solving 200 x 7 we can use the multiplication fact 2 x 7. Since we know that 2 x 7 = 14, we know that 2 x 7 = 1400 (just add 2 zeroes, or move up two place value places). We can also use compensation to help us: 

Picture

A jug fills 38 glasses. There are 52 jugs. To discover how many glasses can be filled we can add 38 fifty-two times, or we can use multiplication: 38 x 52. Since the question says, "about" how many glasses, we can use estimation. We can round 38 up to the more compatible 40. We can round 52 down to the more compatible 50. This is a compensation strategy. When solving 40 x 50 we can use 4 x 5 = 20, which helps us to know that 40 x 50 = 2 000 (just add 2 zeroes, or move up 2 place value places).

In Social Studies today, our final group presented on the Arctic region. I just want to say that overall, I was very impressed with the amount of work that students put into these presentations, quizzes, and the fact sheets they made for their classmates. You can see everyone's completed work on the "Geography" page.​ 
​

Agenda
Language Arts:
- Read 20 minutes

Math:
- Practice 8x, 9x, 3x, 6x, 12x, 5x, 10x, 7x, or 11x tables
- pg. 86 #1-4 (Day 1 - Not Homework) 
- Math Tests Signed and Returned - ASAP (Seth, Kadin) 

Health:
- PEAK Basketball (Monday)
- FRIENDS Home Activity #8A (February 15th) 
 
Music:
- Recorders (Monday)

Science:
- Classroom Science Fair (March 9th)
- School Science Fair (March 15th) 

Hot Lunches - due February 20th (https://timberlea.hotlunches.net)
Tech & Trades Academy - Mondays (3:00-4:00 pm)
Grade 5/6 Guitar Club - Thursdays (2:45-3:45 pm)
CG Recyclers - Day 1 (lunch recess) and Day 4 (lunch)
Girls Basketball - Mondays, Wednesdays (2:45-3:45 pm)
Boys Basketball - Tuesdays, Thursdays (2:45-3:45 pm)
Valentine's Family Dance - February 9th (6:00-9:00 pm)
Valentine's Classroom Celebration - February 14th

0 Comments

Your comment will be posted after it is approved.


Leave a Reply.

    Archives

    May 2023
    April 2023
    March 2023
    February 2023
    January 2023
    December 2022
    November 2022
    October 2022
    September 2022
    March 2022
    February 2022
    January 2022
    December 2021
    November 2021
    October 2021
    June 2021
    May 2021
    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    June 2020
    May 2020
    April 2020
    March 2020
    February 2020
    January 2020
    December 2019
    November 2019
    October 2019
    September 2019
    June 2019
    May 2019
    April 2019
    March 2019
    February 2019
    January 2019
    December 2018
    November 2018
    October 2018
    September 2018
    June 2018
    May 2018
    April 2018
    March 2018
    February 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    June 2017
    May 2017
    April 2017
    March 2017
    February 2017
    January 2017
    December 2016
    November 2016
    October 2016
    September 2016

    Categories

    All

    RSS Feed


Proudly powered by Weebly
  • About
  • Newsletter
  • Seesaw Blog
  • GR 3
    • Grade 3 At-a-Glance
    • Language Arts >
      • Reading
      • Writing
      • Word Work
    • Math >
      • Statistics and Graphing
      • Patterns
      • Whole Numbers
      • Addition And Subtraction
      • Measurement
      • Fractions
      • Geometry
      • Multiplication and Division
    • Science >
      • Rocks and Minerals
      • Building and Materials
      • Hearing and Sound
      • Animal Life Cycles
      • Science Fair
    • Social Studies >
      • Mapping
      • Communities in the World
      • Global Citizenship
    • Health
    • Leader in Me
    • Art
    • Video Yearbook
  • T&T
  • Links
    • FMPSD Website
    • Christina Gordon Website
    • Art for Kids Hub
    • Code.org
    • Dance Mat Typing
    • DOGO News
    • Epic!
    • EverFi
    • Exambank
    • FlipGrid
    • GoNoodle
    • Kahoot!
    • LearnAlberta
    • Math Makes Sense
    • Math 5 Live
    • Mathletics
    • PBS Kids: Math Games
    • Spelling City
    • TumbleBooks
    • Tynker
    • Wonderopolis
  • Contact