adding doubles

ADDING DOUBLES

By Malorie Cummings

MARYVALE PRIMARY SCHOOL

Maryvale Primary Cooperating Teacher: Donna HouseGrade: 2Number of Students: 22General Education Time Frame of lesson: 45 minutes

STUDENT BEHAVIORAL OBJECTIVES

1.1 Students will verbally describe components of a doubles fact with 90%-100% accuracy

1.2 Students will classify doubles facts from non doubles facts on a SMART board activity with 90%-100% accuracy.

1.3 Students will solve for missing double facts on a worksheet provided with 90%-100%

ESSENTIAL QUESTION

How do patterns help us solve problems?

GUIDED QUESTIONSWhat is an addend?

What two numbers will always be the same in a doubles fact?

How is a doubles fact different from other facts?

Where do you see doubles in your everyday life?

ENDURING UNDERSTANDING

A doubles fact is a number sentence with the same addends.

The sun of a doubles face can always be separated into two equal parts

COMMON CORE STANDARDMATHEMATICS

Domain: Operations & Algebraic Thinking (2.OA)

Cluster: Add and Subtract within 20

Standard 2 : Fluently add and subtract with 20 using mental strategies.

(www.nysed.gov pg. 18)

SUPPORTING STANDARDENGLISH LANGUAGE ARTS

CCR Anchor: Foundational Skills – Read with sufficient accuracy and fluency to support comprehension.

Strand: Reading (RF)

Standard 4 a : Read grade level text with purpose and understanding.

(www.nysed.gov pg 25)

PRE-ASSESSMENTTEACHER EXEMPLAR

PRE-ASSESSMENT TEACHER EXEMPLAR

PRE-ASSESSMENT RUBRIC

Number Correct

Score

6 44-5 32-3 20-1 1

Name : Teacher Exemplar

Total : 4 /4

PRE ASSESSMENT: DEVELOPING

DEVELOPING CONTINUED

“Yes it is a fact number because I know”.

DEVELOPING RUBRIC

Number Correct

Score

6 44-5 32-3 20-1 1

Total : 1 / 4

PROFICIENT STUDENT WORK

PROFICIENT CONTINUED

PROFICIENT RUBRIC

Total 3 /4

PRE ASSESSMENT : DISTINGUISHED

DISTINGUISHED CONTINUED:

PRE-ASSESSMENT: DISTINGUISHED

Total: 4 /4

ANTICIPATORY SETItems Used:Egg cartonDomino pieceTwo die (with the same number showing)

Doubles fact songSMART board

MODELING

The teacher rolls the die on the SMART board. The students tell the teacher when a doubles

fact is showing.

The teacher repeats this with the interactive domino on the SMART board.

The teacher thinks out loud when solving a doubles fact in both a horizontal and vertical format.

GUIDED PRACTICE

Envsion Math worksheet

GUIDED PRACTICE

CONTINUED

GUIDED PRACTICE CONTINUE

D

INDEPENDENT PRACTICE

INDEPENDENT PRACTICE CONTINUED

INDEPENDENT PRACTICE CONTINUED

Independent Practice Continued

POST ASSESSMENT: DISTINGUISHED

DISTINGUISHED CONTINUED

DISTINGUISHED RUBRIC

Category Exemplary4

 Double Addition facts

The student completed the problem by writing 3 correct doubles fact

Drawing

The student demonstrates the concept of doubles by drawing 6 of the correct

double in the space provided

 Missing double and

sum

The student writes 11-10 correct addends and sums to show the missing double

POST ASSESSMENT: PROFICIENT

PROFICIENT CONTINUED

PROFICIENT RUBRICProficient

3The student

completed the problem by writing

2 correct double facts

The student demonstrates the concept of double

by drawing 5 of the correct doubles in

the space provided.The student writes 8-9 correct addends and sums to show the missing double

Category

 Double Addition facts

 Drawing

 Missing double and

sum

STUDENT DATA

Develo

ping

Profic

ient

Disting

uishe

d048

1216

Pre and Post Assessment Data

Pre-Assessment

Post-Assessment

Level of Performance

Num

ber

of S

tude

nts

MODIFICATIONS   

Instructional

The teacher uses a sorting activity on the SMART board.  The worksheets contain word problems, math sentences, and pictures and fill in the blanks.

Students compare between a doubles fact and a non-doubles fact. Students can apply their skills in various ways/strategies

Students see the difference between a doubles fact and a non doubles fact. Students learn through multiple intelligences. 

THANK YOU!!!

Emily S., Emily G., Kino and Lauren,

Thank you for a wonderful LE experience! I thoroughly enjoyed collaborating with you! I learned how to make my assessments stronger and how to my make rubrics easier to understand!