Week 20

   

                                                                              February 5, 2018

Dear Bighorns,

A GIGANTIC thank you to all that were able to come to Math Night last Tuesday!  It was great to see so many families enjoying playing math games and working on math puzzles!  We are hoping to make this an annual event!!

Miss Garcia and myself can't believe we just changed the calendar pieces from January to February!!  How can we be done with the first calendar month of the year???

In math 2nd grade students have been working very hard using previously learned strategies (open number line-last week and branch models-this week) renaming the ones and tens to add and subtract within one thousand.  This work involves a lot of decomposing and composing of numbers.  This is very challenging work, when homework comes home please help students as needed.  We have examples below and usually have an example on the worksheet to guide you.  While the work may seem challenging now, you will be surprised at how quickly the students become experts.

Examples from last week…

Addition

450  +  90 = ___   1.  The next hundred after 450 is 500.

         ↙ ↘           2.  To get to 500 you need 50, so the 90 get decomposed into 50 and 40.

     50   40             3.  The renamed equation is 500 + 40 = 540.

500 + 40 = 540      4.  Check by using the open number line.

Subtraction

56  -  7 = ____1.  The last ten before 56 is 50.

      ↙ ↘           2.  To get to 50 you need to subtract 6, so the 7 gets decomposed into 6 and 1.

    6    1              Then take the 6 and subtract it from the 56 to make 50.

56 -6 = 50       3.  The renamed equation is 50 - 1 = 49.

50 - 1 = 49      4.  Check by using the open number line.

Examples for this week…

Renaming the ones.

      606   +   145  =                         1.  Decompose addends by place value.

     ↙↓↘         ↙↓↘                             2.  Group hundreds.  Group tens.  Group ones.

    600  0   6   100 40  5                   3.  Add hundreds.  Add tens.  Add ones.

(600 + 100) + (0 + 40) + (6 + 5)       4.  Decompose the ones place to rename.

     700       +     40     +     11           5.  Write and solve renamed equation.          

                                         ↙ ↘

                                       10   1

     700        +     50     +     1 =  751

Renaming the tens.

         256   +    371  =                       1.  Decompose addends by place value.

        ↙↓↘         ↙↓↘                         2.  Group hundreds.  Group tens.  Group ones.

 200  50  6  300 70 1                           3.  Add hundreds.  Add tens.  Add ones

(200 + 300) + (50 + 70) + (6 + 1)     4.  Decompose the tens place to rename.

                     ↙ ↘                             5.  Decompose the tens place to rename hundreds place.

                    20 30                                6.  Write and solve renamed equation.  

500     +     120     +     7

                 ↙ ↘

              100  20

600    +    20    +    7  = 627

Homework

Monday	Worksheet - Decomposing, subtracting 10’s
Tuesday	Worksheet - Decomposing subtraction review 1’s and 10’s
Wednesday	Worksheet - Branching renaming 1’s
Thursday	Worksheet - Branching renaming 10’s

Language

Although we are always working on capitalization within our written work, this week it will be our focus.  Students will be using the acronym MINTS (M=months and days of the week, I=the pronoun “I” anywhere in a sentence, N=the names of people, places, and things,T=titles, and S=start of every sentence) to help us to remember words that need to be capitalized.  

Writing

Second grade writers are working on naratives!  Students have filled out their “quick sketch” notetakers and have been retelling their stories, which involve characters making a “snow critter” and the adventures that their “snow critter” has with them or later at night.  This narative is based on the popular Snowmen At Night books.  Rough drafts and some final copies should be completed by the end of the week.

Projects

Our new project is focusing on the area Geography.  Student have reviewed urban, suburban, and rural communities.  They have also spent time using Google Earth to find their homes.  This week our students of Geography will be using Google Earth to find landmarks within the United States.  We will also be looking at maps.

Valentine’s Day

Valentine’s Day is coming up on Wednesday, February 14th.  Since this holiday falls on a school day, the 2nd grade team will enjoy a few activities at the end of the day.  Our plan is to have students pass out Valentines (please be sure that your child sends one to everyone), play Valentine Bingo, and share appreciations.  Miss Garcia and myself wish to have the children enjoy the holiday with our students in a very simple manner.  

FYI...The Oasis Student Council will be selling Candy Grams.  Although Kindergarten, 1st, and 2nd graders will not be allowed to buy them, parents may purchase them in the cafeteria from 12:00 to 1:15 pm.  

Wishing you all a great week!

Sincerely,

Mrs. Bloomfield and Miss Garcia