Decimals

We are continuing with place value but now we are moving onto DECIMALS!

These are the TEKS related to decimals that our fourth graders are expected to do.

4.2E represent decimals, including tenths and hundredths, using concrete and visual models and money;

4.2B represent the value of the digit in whole numbers through 1,000,000,000 and decimals to the hundredths using expanded notation and numerals

4.2F compare and order decimals using concrete and visual models to the hundredths; S Compare

4.2H determine the corresponding decimal to the tenths or hundredths place of a specified point on a number line.

4.3G represent fractions and decimals to the tenths or hundredths as distances from zero on a number line.

4.4A add and subtract whole numbers and decimals to the hundredths place using the standard algorithm;


To get us started we wrote about decimals in our journals.
We looked at three ways to see decimals: picture form, word form, standard form. We did a matching activity with those forms. I want the kiddos to get used to see decimals in all sorts of ways!!

Showing off the math journal.

Playing the matching game.

Matching game close up

Putting decimals on a number line.

Practicing the different ways to write a number.

Putting our decimals on the number line.

Intern teacher!!

Rounding

Today's TEK is:

TEKS: 4.4G round to the nearest 10, 100, or 1,000 or use compatible numbers to estimate solutions involving whole numbers;

4.2D round whole numbers to a given place value through the hundred thousands place;


"Four or less, let it rest.
Five or more, up the score!"

Counselor Lesson

Today we had our first counselor lesson. Our counselor this year is Rosella Castilla and we are so lucky to have her.
She will come and do 8 different lessons throughout the school year. Today we just talked about how a counselor's job is to help students and the different groups she provides. We also played a fun BINGO game!
They filled out a little questionnaire about their feelings. When they got to the part about, "Do you like your teacher?" they ALL turned around and looked at me. Sure hope they all circled the smiley face!

To read more about our counselor, click here.

Kahoot.it game

Yesterday we played our first Kahoot game of the year. It was over place value!

https://play.kahoot.it/#/k/b2382ba8-d7f7-4790-a966-6057db0e7a68

The Kahoot! platform and brand is developed by the founding team lead by Johan Brand, Jamie Brooker and Morten Versvik. The quiz is based on research carried out by Professor Alf Inge Wang and his colleagues at the Norwegian University of Science and Technology (NTNU). The technology platform itself is based on the research conducted by Morten Versvik for his Master’s degree at NTNU. The Pedagogy and User Experience is based on work by Jamie Brooker and Johan Brand developed while working at their behaviour design company We Are Human in London.

Kahoot! is owned and funded by the team in addition to grants from the Norwegian Research Council. The current service will stay free, however Kahoot! will offer added value services in the future.

Math journal

I wanted to share some of the pages that are in our math journals already. I have a math journal that I use up at the front of the room and all my students have a math journal that looks pretty much like mine. Math journals are composition books.

Our spirals are used for daily warm ups.

Math This Year

Math is split up into 8 different units. Here are the big ideas for each unit:

Unit One: Use an understanding of base-10 place value and to develop an understanding of decimals as numbers and develop and use procedures for adding and subtracting decimals.

Unit Two: Apply an understanding of place value strategies and multiplication algorithms to solve multi-digit multiplication problems in a variety of ways.

Unit Three: 
    Unit 3A Apply an understanding of place value strategies and division algorithms to represent and solve division problems in a variety of ways.

    Unit 3B
Apply an understanding of the four operations to analyze number relationships

Unit Four: 
     Unit 4A Apply an understanding of expressions and equations to develop and use formulas for perimeter and area problems involving rectangles.

    Unit 4B Select appropriate customary and metric units, strategies, and tools to solve problems involving measurement

Unit Five: 
The student applies mathematical process standards to:*represent and generate fractions to solve problems*compose and decompose fractions to add and subtract fractions with like denominators *use an understanding of benchmark fractions to estimate and evaluate reasonableness of sums and differences

Unit Six: 
    Unit 6A  Analyze geometric attributes in order to developgeneralizations about their properties.

    Unit 6B  Understand and apply characteristics of angles and angle measures.

Unit Seven:
    Unit 7A  Numerical data can be represented in a variety
of ways and can be used to solve problems. Rational number fluency is critical to being able to solve problems in everyday life that contain numerical data.

    Unit 7B  Rational number fluency is critical to being able to solve measurement and financial problems that arise in everyday life.

Unit Eight:
Rational number fluency is critical to being able to solve measurement and financial problems that arise in everyday life.

Unit One

Unit Summary: Students use understandings of base-10 place value to develop an understanding of decimals as numbers and develop procedures for adding and subtracting decimals.

Essential Questions:
 How does the base ten number system operate?
 How can numbers be represented to show the value of each digit?
 How does an understanding of place value help compare and order whole numbers and decimals?
 How can estimation help make sense of problems involving addition and subtraction?
 How is the standard algorithm for addition and subtraction similar place value strategies for addition and subtraction?
 How are addition and subtraction of whole numbers similar to addition and subtraction of decimals?
 How can strip diagrams and equations be used to represent addition and subtraction?

Vocabulary:

Place value - valor de posición 

Digit - dígito 

Whole - entero 

Billions - mil millones 

Millions - millones 

Thousands – millares/miles 

Hundreds centenas/cientos 

Tens - decenas 

Ones - unidades 

Decimals - decimales 

Hundredths - centenas 

Tenths - decenas 

Number line- recta numérica 

Position - posición 

One‐tenth - una décima 

Ten times - diez veces 

Expanded notation - forma desarrollada/ forma 

expandida/notación desarrollada 

Numerals - numerales 

Equal to - igual a 

Greater than - mayor que 

Less than - menor que 

Greatest to Least - de mayor a menor 

Least to greatest - de menor a mayor 

Add – sumar, añadir, adicionar 

Subtract – restar, sustraer, deducir 

Sum - suma, importe 

Difference -diferencia 

Estimate- estimar 

Round - redondear 

Compatible numbers - números compatibles 

Nearest 10 – más cercano a la decena 

Nearest 100 - más cercano a la centena 

Nearest 1000 - más cercano al millar 

Equation - oración numérica /ecuación 

Unknown - desconocid