Make Quilts with Nine SUBJECT: Operations and Algebraic Thinking (OA) TEACHERS: Houston STANDARD: K.0A.3. Decompose numbers less than or equal to 10 into pairs in more than one way. OBJECTIVE (EXPLICIT): The students will decompose numbers equaling nine. EVIDENCE OF MASTERY (MEASURABLE): BEFORE SUB-OBJECTIVES, SWBAT (SEQUENCED FROM BASIC TO COMPLEX): KEY VOCABULARY: MATERIALS: Worksheet titled, Goodnight Bear Individual white boards for each student Construction paper in two colors (my samples are red and blue) cut into 1 inch squares (I recommend cutting enough to fill half a baggie per child.) ENGAGE (MAKE CONTENT AND LEARNING RELEVANT TO REAL LIFE AND CONNECT TO STUDENT INTEREST) THE TEACHER WILL: TTW share a story about a quilt or blanket to gain student interest. Recommended book: The Quilt by Ann Jonas. TTW explain to the students that today they will be using small squares in two colors to make mini quilts. TTW show students the worksheet titled: Goodnight! Discuss the quilts. Ask the students, “How many squares will each quilt need?” Emphasize that each quilt needs nine colored squares. TTW explain that each bear would like his or her own special quilt to sleep with. It will be their job to create four different and special quilts for each bear. The teacher says, “When you make your quilts, you must follow two rules.” THE STUDENT WILL: Share and discuss the story, The Quilt. If you do not have the book, allow students to make connections to their prior knowledge by discussing special quilts/blankets they have at home. What pictures and/or designs are on their blanket? TSW count the number of squares needed to complete each quilt. TSW use the one-inch construction paper squares to create four different quilts for each bear. The students can arrange and glue the colored squares in any way. However, they must fill all squares. TSW observe as the student models “Each box must be filled with a paper square and each quilt must be different.” TTW call on a student to model one possible way to arrange and glue the colored paper squares to create a design. CO-TEACHING STRATEGY IF APPLICABLE TTW monitor students as they begin TSW use the paper squares gluing colored squares in place to provided to design four different create four quilts. Ensure students quilts for each sleepy bear. Glue on are filling each square. paper. TTW ask, “What strategy did you use to create a different quilt each TSW cut apart their paper into four time?” separate pieces. TSW bring all four “How many blues squares did you squares, a white board, and a white use on this quilt? How many red board marker to the carpet. TSW sit squares did you use? Is that the in a carpet circle. same or different as your other quilts?” TTW ask students to cut their paper into four separate pieces (cut on the dotted line). TTW have students bring each of their four quilts and their white boards to the carpet. TSW sit in a circle. CO-TEACHING STRATEGY IF APPLICABLE DURING AFTER TTW call on a student to share one of their special quilts. The class will count how many squares the student used for each color. Example: TSW say, “My quilt has 4 blue squares and 5 red squares.” TTW collect and begin sorting all student quilts into matching piles. Example: Teacher: “I see you used 4 blue squares and 5 red squares. Did anyone else do the same?” Teacher: Have all students that created a quilt with the same design place theirs on the rug in a column. how to line-up and glue papers squares in each box. TSW bring their white boards, white board marker, and quilts to the carpet. As a class, the students will compare and sort their quilt squares into similar groups TTW call on another student with a different design. Repeat the steps above until all students have sorted each of their four quilts into the different combinations of nine. TTW say, “Look at all of the different ways we made our quilts!” “Each quilt needed how many squares?” Teacher: “Can we write a number sentence showing how we used each color?” TTW choose one quilt from the sorted columns to hold up. Model how to count the number of blue squares used and the number of red squares used. Example: 1 blue and 8 red were used. We write 1+8=9. TTW record number sentences on the board allowing students to see how many number sentences were written. TSW write each number sentence on their individual white boards. TTW repeat the process of asking students to write a number sentence equaling nine for each quilt group. Ending Question: TTW ask, “How many different ways were we able to make nine?” CO-TEACHING STRATEGY IF APPLICABLE TSW write number sentences on their individual white boards to represent each quilt group. TSW determines that there are many different ways to compose/decompose numbers to equal nine. Discuss their findings.