What's

**new**in math?

__Understanding, Representing, and Solving Addition and Subtraction to 10.__**In this unit, students relate counting to addition and subtraction to add and subtract within 10 using a variety of strategies. Students will solve word problems in that range and develop a deep understanding of the meaning of the equal sign (=).**

**Common Core Focus:**

**Add and subtract within 10 to solve word problems of various types****Relate counting to addition and subtraction.****Add within 10 using counting on, making 10, and decomposing strategies.****Understand the meaning of equals sign (=) involving addition and subtraction.****Apply the commutative and associative properties as a strategy to solve addition problems.****Represent an addition problem with an equation using symbols to represent the unknown number.**

**What's ahead in math?**

In this unit, students are developing a deep understanding of two-digit numbers and using that understanding to read, write, and compare numbers to 30 and count to 120 beginning with any number.

__Introduction to Place Value and Comparing Numbers to 30__In this unit, students are developing a deep understanding of two-digit numbers and using that understanding to read, write, and compare numbers to 30 and count to 120 beginning with any number.

Addition and Subtraction within 10

The children will learn strategies to help them solve addition and subtraction problems within 10. By the end of first grade, children should be able solve all problems within 10 in three seconds a problem. In order to help the children learn how to do this, the problems are broken down in strategies. You may have hear your child use the words: "ten friend" , "double", or "counting on". Below is a description of each strategy the children are learning:

Count on 1, 2, 3:

When adding two numbers, put the larger number in your head and count on 1, 2, or 3. You may have to change the order of the addends to do this. 6+3=(6... 7, 8, 9), 2+7=(7...8,9)

Count Back 1, 2, 3:

Put the whole in your head and count back. 9-2= (9...8,7)

Count On "Think Addition" :

When subtracting and the numbers are close start with the small number and count on to the large number to get the difference.. 9-7= (7...8,9 your answer is 2)

Doubles:

Adding a number to itself. 2+2=, 4+4=, also knowing if 4+4=8, then 8-4=4.

Near Doubles or Doubles +1:

When adding two numbers that are one apart (or number neighbors) double the small number and add one to the answer. 4+3=, double the 3 and add 1 to the answer. 3+3=6, so 4+3=7.

Ten Friends:

Two numbers when added together equal 10. 4+6=10, 8+2=10

Also knowing when 10 is the whole and you take away a part, the missing part is the ten friend. 10-7=3.

Below are addition and subtraction strategy flashcards. Some strategies will be introduced as we move on in the year. Feel free to copy at your convenience!

**addition_strategies.pdf**

**subtraction_strategies.pdf**

What is

Children work with a partner to play a math game.

Children work independently to solve word problems in their math journals.

Children work with technology to practice their fluency with math facts.

Children work with place value activities.

Children practice skills reinforcing what they have already been taught.

**B.U.I.L.D.**?**B.U.I.L.D**. is embedded into our math workshop.**B = Buddy Games**Children work with a partner to play a math game.

**U = sUper Problem Solving**Children work independently to solve word problems in their math journals.

**I = I-Pad/Computer**Children work with technology to practice their fluency with math facts.

**L = Learning About Numbers**Children work with place value activities.

**D = Doing Math**Children practice skills reinforcing what they have already been taught.