# Bar Models-Mult.& Div.

## April 19, 2018

## Add/Sub Fact Fluency Test date: April 26

## EDC: Graphs Test April 27

## Bar Models: Mult/Div. Test Date: May 8

## DATA

## FRACTIONS- 2017- 85%

## Fractions- 2018-83% 5/6 TEKS Mastered

## Money- 2017 63%-2018-67% 4/6 TEKS MASTERED

## Multiplication & Division Data

## 2018-Jan-Intro-Multiplication & Division 54%

## 2018-Feb-Multiplication Tables 2, 5 and 10- 58%

## 2017-Intro- Multiplication & Division 48%

## 2017-Multiplication- Unit 8 49% Multiplication Tables 2, 5 and 10

## 2017- Last MIF Test- Combined-Bar Models: Multiplication & Division and Multiplication Tables 3 & 4 Units 14/15

## 78%

## Missing: Sander's/Fitzpatrick's homeroom

## BIG IDEA:

## Students understand for both multiplication and division groups are always equal.

## TEKS: Multiplication and Division

## The student is expected to:

## Equal groups that are added (multiplication) or equal groups that are subtracted (division)

## Multiplication

## Students understand multiplication can be represented by adding equal groups.

Students can transition to creating a visual representation (bar models) using Unifx Cubes as groups (boxes, bags, people,etc). Each cube represents the SAME amount..students will use repeated addition to find the total.

## To find how many in EACH group students can use doubles..

## Students have a clear understanding that multiplication is represented by using EQUAL groups.

**GIVEN:**Total and number of groups

**FIND:**

**How many in each group.**

## Division can be represented by subtracting EQUAL groups.

## Students will count on EQUAL groups to achieve the total.

**Given: **Total, how many in each group and some of the groups.

**Goal: **To find how many groups in all.

Students will use cubes to count on to get to the total.

Students will draw the missing cubes.

Students will use both the **related multiplication fact **and **repeated addition**.

**'8 groups of 3 make 24.'**

**'3+3+3+3+3+3+3+3=24'**

## Great video...very easily our students can see the bar models

* may use Unifx Cubes

## Review with students and send link home

2nd Grade: Multiplication by Repeated Addition

Multiplication as Repeated Addition

Intro to multiplication | Multiplication and division | Arithmetic | Khan Academy

Grade 2 - Learning multiplication facts and how you can help

## Review Vocabulary!

Multiplication Vocabulary - Math Video Elementary Kids

## Division

2nd Grade: Division by Sharing