Place Value

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  • Topic: Number, Numeral system, Numerical digit
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Place Value

Mathematics

Grade 1

Everyday Mathematics Teacher’s Lesson Guide, Volume 1

Unit Goals:

Develop an understanding of numbers and numeracy up to 100.

Develop an understanding values of numbers up to 100.

Pennsylvania Department of Education State Standards

Subject Area - : Mathematics

Grade Level - 1st Grade

Standard Area – 2.1: Numbers, number systems and Relationships

Standard

2.1.1.A: Demonstrate the relationship between numbers and quantities, including place value, one-to-one correspondence, rote counting, counting by twos to 20, counting by tens and fives and comparing values of whole numbers up to 100.

2.1.1.B: Represent equivalent forms of the same number through the use of pictures and concrete objects (including penny, nickel, dime, and quarter), up to 100.

2.1.1.D: Apply place value concepts and base-ten numeration to order and compare whole numbers up to 100.

Prior Kindergarten Level Knowledge from the Kindergarten Pennsylvania Learning Standards for Early Childhood. Office of Child Development and Early Learning (2009).

Rote count by whole numbers to 100 by ones.

Count by tens to 100.

Count up to 20 objects using one-to-one correspondence.

Use basic numbers and counting.

Use vocabulary independently to compare numbers of objects.

Use concrete objects to represent quantities up to and including twenty.

Identify penny, nickel, dime.

Represent equivalent forms of the same number the use of concrete objects and drawings up to and including twenty.

Group objects into sets of tens.

Content Skills and Concepts Being Taught During the Unit

Identify place value in two-digit numbers.

Name the values of groups of tens and ones represented in different ways, including dimes and pennies.

Find equivalent names for numbers.

Represent the value of the number 100 in one way.

Make exchanges among the place vales of tens and ones.

Compare numbers, including money values, using the symbols , and =.

Future Use of Content Skills Taught in This Unit (Bell. 2004, pp. 798-811).

Practice and review of the skills taught in this unit during the next units.

Read and write three-digit numbers.

Make and solve number grid problems.

Use dollars and cents notation.

Identify equivalencies and make coin exchanges.

Identify pennies and dimes as fractional parts.

Calculate the value of coin combinations.

Solve two-digit addition and subtraction problems.

Count by numbers greater than ten.

Learning Targets for 1st Grade Unit on Place Value of Two-Digit Numbers 1. Knowledge and Simple Understanding

• Students will write two-digit numbers that are represented by drawings, and words, including dimes and pennies, on six problems accurately on paper and/or response boards throughout the unit (Examples: DDDPP = _____, l l l l • = _____,

8 tens and 5 ones = ___).

2. Deep Understanding and Reasoning

• Students will compare values of two two-digit numbers by writing the correct symbols (, =) between them on paper in six number models accurately(Example:

23 61).

• Students accurately will verbally or in writing explain their reasoning for their answer to one number model in which they must write the correct symbol as...
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