• # Elementary Mathematics Grade 1 Introductory Unit

Subject: Mathematics
Timeline:  6 days
Unit Title: Introductory Unit

Unit Overview:

This unit will give the opportunity for students to review from Kindergarten how to write numbers correctly, count, work with numbers form 0 – 20, add and subtract within 10, and identify attributes.

Unit Objectives:

At the end of this unit, all students will be able to:
• count from 0 to 100 by 1s and 10s. Students will also be able to start at any number within 0 to 100 and continue the count by 1s.
• add and subtract fluently to 5 as well as add and subtract within 10 using strategies.
• identify attributes for shapes.

Focus Standards:

PA.CCSS.Math.Content.CC.2.1.K.A.1 Count forward beginning from a given number within the known sequence (instead of having to begin at 1). (K.CC.2)
PA.CCSS.Math.Content.CC.2.1.K.A.1 Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20 (with 0 representing a count of no objects). (K.CC.3)
PA.CCSS.Math.Content.CC.2.1.K.A.3 Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group. (K.CC.6)
PA.CCSS.Math.Content.CC.2.1.K.A.3 Compare two numbers between 1 and 10 presented as written numerals. (K.CC.7)
PA.CCSS.Math.Content.CC.2.1.K.B.1 Compare and decompose numbers from 11 to 19 into tens and ones and some further ones, e.g. by using objects or drawings, and record each composition or decomposition by a drawing or equation, understanding that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, nine ones.  (K.NBT.1)
PA.CCSS.Math.Content.CC.2.2.K.A.1 Represent addition and subtraction with objects, fingers, mental images, drawings, sounds, acting out situations, verbal explanations, expressions, or equations.  (K.OA.1)
PA.CCSS.Math.Content.CC.2.2.K.A.1 Solve addition and subtraction word problems, and add and subtract within 10.1 (K.OA.2)
PA.CCSS.Math.Content.CC.2.2.K.A.1 Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation. (K.OA.3)
PA.CCSS.Math.Content.CC.2.3.K.A.1 Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms. (K.G.1)
PA.CCSS.Math.Content.CC.2.3.K.A.1 Correctly name shapes regardless of their orientations or overall size. (K.G.2)
PA.CCSS.Math.Content.CC.2.3.K.A.1 Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, and other attributes. (K.G.4)

Mathematical Practice Standards:

#1 Make sense of problems and persevere in solving problems.
#4 Model with mathematics.
#5 Use appropriate tools strategically.
#6 Attend to precision.

Assessments:

Elements of Instruction:

With the Kindergarten Common Core State Standards for Counting and Cardinality, students master the understanding of numbers to 20.  They can count, read, and write numbers from 0 to 20.  They can compare numbers between 1 and 10 and can count objects and understand that the last number name tells the number of objects counted.  Students entering first grade should also be fluent in counting forward from a given number other than 1.

Differentiation:

Each lesson has differentiation options for each portion of the lesson.  Additional differentiation options are listed with directions and student masters in the Teacher’s Guide to Games.

Interdisciplinary Connections:
• Morning message.

Additional Resources / Games:

Students will play a variety of games that directly support the content of the lesson and the overall goals for the unit. Games for unit one include:
• Review Lesson 1  None
• Review Lesson 2  Top-It
• Review Lesson 3  Guess My Number, Roll and Record with Two Dice
• Review Lesson 4  None
• Review Lesson 5  Two Fisted Pennies Game
• Review Lesson 6  I Spy, Make My Design