# ALEKS MATH LV-3

### Week of 9.22.14-9.27.14

## What's going on in the classroom?

When rounding at home, please stress * 5 or more, add 1 more*, and

*. We use these phrases rather than 'round up' or 'round down' because the latter confuses the students. For example, if they say 'round down', they will reduce the number by one, rather than keeping the number the same.*

**Zero through 4, the number stays the same**I have several great activities planned for this week to help with our understanding of place value and rounding. I'm very excited to introduce these activities.

As we move forward, we will also be working on subtraction with regrouping (borrowing). A solid understanding of place value is needed in order to understand regrouping. I have found that many of our kiddos are making mistakes in their subtraction because of the way they are regrouping. Pretty much every time a mistake is made, it is due to the way they have regrouped (or borrowed). I'm trying to break this habit, so I have included some pictures below of how they are currently regrouping and how I would like them to do their regrouping from now on. You will notice in the images below that I have turned my notebook paper sideways. This really helps students line up their numbers properly.

In addition, I have found an AWESOME (and free!) online manipulative tool for students to reinforce the concept of regrouping. It's really one of the best I've seen. When this tool is used, students move the manipulatives in order to regroup (or borrow) so they can subtract. In this way, they actually see what it means to regroup. I am including the link here so you can check it out, and use it at home when needed. We will also use this tool in class.

Online Subtraction Manipulatives - Base Blocks Subtraction

**Please note: You will need the latest version of Java installed on your computer in order to run the program.*

You may also continue to use the videos I've posted on our class website for rounding and subtraction.

## Current Method (Correct) When the students add the 10 to the 8, to make it 18 in order to subtract, they 'slide' the 1 between the 6 and the 8. This is confusing and makes it look as though we are subtracting 79 from 7618 rather than 79 from 768. This has caused MANY unnecessary mistakes. | ## Current Method (Incorrect) This is an example of one type of mistake that students make using this current method. The mistakes seem to increase when regrouping across 0's. | ## New Method The regrouped numbers should appear above the original number. |

## Current Method (Correct)

## Current Method (Incorrect)

## What will we be doing at home this week?

- Working in
**ALEKS Learning Mode**(from the pie) - about an hour of at home ALEKS Learning Mode work.***DUE TO THE TUESDAY FIELD TRIP**: By Saturday at midnight, students should have**2.5 hours total (class time ALEKS Learning Mode AND at home ALEKS Learning Mode COMBINED)**. **2 Sessions of**__ADDITION__QuickTables (approximately 15 minutes per session)**choose to complete QuickTables sessions on two of the following days: Tuesday, Wednesday, Thursday, Saturday, or Sunday*

*Does not count as ALEKS Learning Mode time.**Sunday Review**: This day is reserved for Review in order to prepare for the weekly assessment. Students should**NOT**be learning new topics on Sundays.**Simply click on 'Review' at the top of your ALEKS screen.*

## Poof! Practicing our fact work with an addition version of 'Chutes and Ladders'. | ## Place Value Tag Our Friday Whole Group Game Day was SUPER fun! We played Place Value Tag. Students tried to capture as many 'flags' from each other as possible. When the 'flags' were all captured, each student announced their number, so we could find the largest number. Then we played again...and again! It was so much fun!!! | ## Race to the Top More fact practice: Students used addition to 'Race to the Top'. |

## Place Value Tag

## Games/Activities for HOME Use

**Rounding:**

We have been using 'The Rounding Rap' in class. Please use this with your children when working on rounding at home.

*Find the PLACE VALUE and underline the digit!*

*Move next door and circle it --- get it?*

*Zero through four --- the number stays the same!*

*Five or more --- add one is the game!*

*Now, flex your muscles like a hero…*

*Digits to the right change to zero.*

*All other digits remain the same!*

*Yo! You’re a WINNER in the rounding game!*

**Place Value Identification (from last week):**

You can use a deck of cards (face cards and 10's removed) ** OR** 7 dice for this quick activity.

**Students may use their place value notes found in their binders for this activity.*

- Start by turning over 2 cards (or rolling two dice).
- Create the largest number possible from those two cards (or dice).
*Example: I roll two dice - a 2 and a 6. The largest number that can be made is '62'.* - Now, ask your child which number is in the 10's place, and then which number is in the 1's place.
- Continue practicing place value, but increase the number of cards (or dice) until you have 7 places showing.
- Mix it up a bit and ask your child to identify the different place values up to millions.
*Which number is in the Hundred Thousands place? Which number is in the Hundreds place?*