# CPC: Sep. 30, 2015

### Unit Three: SUBTRACTION UP TO 1,200

## Unit Three TEKS:

2.(4) __Number and operations:__

The student applies mathematical process standards to develop and use strategies and methods for whole number computations in order to solve addition and subtraction problems with efficiency and accuracy.

__The student is expected to:__

(A) **recall basic facts to add and subtract within 20 with automaticity; Flash cards, E.D.C., Centers, DreamBox**

(B) add up to four two-digit numbers and **subtract two-digit numbers using mental strategies and algorithms based on knowledge of place value and properties of operations;****WG, SG, PRACTICE, CENTERS, H.W. AND Dreambox**

(C) **solve one-step and multi-step word problems involving** addition and **subtraction **within 1,200 using a variety of strategies based on place value, including algorithms;

**WG, SG, PRACTICE, CENTERS, H.W. AND Dreambox**

and

(D) **generate and solve problem situations** for a given mathematical number sentence **involving** addition and **subtraction of whole numbers within 1,200. ***WG, SG, PRACTICE, CENTERS, H.W. AND Dreambox*

__E.D.C.__

(5) **Number and operations**. The student applies mathematical process standards to d**etermine the value of coins in order to solve monetary transactions. **

**The student is expected to:**

(A) **determine the value of a collection of coins up to one dollar**; and

(B) **use the cent symbol, dollar sign, and the decimal point to name the value of a collection of coins.**

## Unit Folder Components

**Big Idea**- 15 instructional days QQ/SS (WG, SG, ANCHOR CHARTS. STUDENT LANGUAGE)

**Pre-test** (Thursday, **Oct. 8**)

**Re-Take **of Unit Two: (Wed. **Oct. 14**)

**Post-test** (Friday, **October 30**)

**Newsletter**: (Tues. **Oct.6**)

## Five Non-Negotiables for this Unit

**Start with a story:**

Mrs. Garner’s class has 337 Dream Box points. Mrs. Scholl’s class has 179 less points than Mrs. Garner’s class. How many Dreambox points does Mrs. Scholl have?

**Represent the number sentence using the place value names**

***Start the number sentence with the whole number followed by the part:**

**Represent the whole number using pictures (models) and PV chart:**

**Connect to a Number Bond:**

**Reinforce vocabulary-label and discussions**

## Learn Components:

Unit Two: Mrs. Scholl

Unit Three: Mrs. Garner

Unit Four: Mrs.Sanders

Unit Five: District Video

## CENTERS:

**Break a Hundred!**(Same materials as Make a Hundred!) Students will start at a hundred with 9 tens and 10 units, roll the die and subtract (remove) that amount from a hundred. The first one to get to zero or closest to zero wins!

## Dreambox Update

## EDC

Judy Clock or laminated clock

## CPC Intervention

**Starts Wednesday, October 7th**

Cepeda/Ochoa/ Garner/Deadessis

Scholl/Wolken/Sanders