Unit 1: Rounding and Place Value

This unit is all about rounding numbers, understanding the midpoint of a number, adding and subtracting whole numbers, and solving word problems while completing these operations!  Throughout the year our standards specify that there are certain ways I need to teach your child.  Some of these various methods are to ensure deeper understanding of the concept or of numbers in general.  Please don't fall into the idea that this is "common core math".  I am simply going to teach your child various methods of understanding material!  Feel free to work with them "the old way" or how you were taught in school.  I'm sure we will cover that method as well. :)


Standards for Unit 1

MGSE4.NBT.1 Recognize that in a multi- digit whole number, a digit in any one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.

MGSE4.NBT.2 Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons. 

MGSE4.NBT.3 Use place value understanding to round multi-digit whole numbers to any place.

MGSE4.NBT.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.

MGSE4.OA.3 Solve multistep word problems with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a symbol or letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.

MGSE4.MD.2 Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit. Represent measurement quantities using diagrams such as number line diagrams that feature a measurement scale.


Vocabulary for Unit 1

1) Value: the amount a digit is worth

2) Word Form: how a number is written with words or said aloud

3) Standard Form: how a number is written with numerals

4) Expanded Form: how a number is written to show the place value of each digit

5) Period: digits in groups of three in a large number

6) Compare: to decide if one number is greater than, less than, or equal to another number

7) Greater Than: a comparison that says one number has greater value than another number (>)

8) Less Than: a comparison that says one number has less value than another number (<)



Practice Websites

Rounding Kahoot