MATHEMATICS STAGE 1 TEACHING AND LEARNING OVERVIEW TERM: WEEK: 12 STRAND: Number and Algebra OUTCOMES: SUB-STRAND: Multiplication and Division 2 WORKING MATHEMATICALLY: MA1-1WM, MA1-2WM, MA1-3WM MA1-6NA - uses a range of mental strategies and concrete materials for multiplication and division CONTENT: Recognise and represent multiplication as repeated addition, groups and arrays (ACMNA031) Determine and distinguish between the 'number of rows/columns' and the 'number in each row/column' when describing collections of objects (Communicating) Recognise practical examples of arrays, such as seedling trays or vegetable gardens (Reasoning) model the commutative property of multiplication, eg '3 groups of 2 is the same as 2 groups of 3' ASSESSMENT FOR LEARNING (PRE-ASSESSMENT) WARM UP / DRILL Anecdotal notes following counting games, and group work to identify those who can describe collections of objects as 'groups of', 'rows of' and 'columns of' (Communicating) TENS ACTIVITY NEWMAN’S PROBLEM INVESTIGATION What is the quickest way to count a group of students? Is there more than one method? QUALITY TEACHING ELEMENTS RESOURCES Call out a number and have the students form groups of that number and sit as a group. Any students left standing nominate the next number. Skip count daily using IWB hundreds chart. INTELLECTUAL QUALITY Deep knowledge Deep understanding Problematic knowledge Higher-order thinking Metalanguage Substantive communication QUALITY LEARNING ENVIRONMENT Explicit quality criteria Engagement High expectations Social support Students’ self-regulation Student direction SIGNIFICANCE Background knowledge Cultural knowledge Knowledge integration Inclusivity Connectedness Narrative IWB objects, collections of a variety of objects such as counters, teddies, paddle pop sticks, egg cartons, muffin tins, seed trays Multiplication Array Journal at http://panickedteacher.typepad.com/blog/2010/11/multiplication-arrays.html My Little Book of Arrays- activities, worksheets, and math centers to help students practice rectangular arrays. All arrays are up to 5x5 from TeachersPayTeacher eisforexplore.blogspot.com Commutative Law song on YouTube TEACHING AND LEARNING EXPERIENCES WHOLE CLASS INSTRUCTION MODELLED ACTIVITIES Reasoning and communicating. Present 12 objects. Discuss the easiest way to display the objects so that they can be counted easily, ie repeated addition, skip counting Define and reinforce metalanguage used in the unit, ie row, column, sharing, collection, fair share Explore and define commutative law of multiplication Using IWB show the 12 objects to manipulate into various arrays, reversing number of objects in rows and columns, without changing the total number GUIDED & INDEPENDENT ACTIVITIES LEARNING SEQUENCE Remediation Rows and columns- Use egg cartons and counters to show 2 rows of 6 and 6 rows of 2, discuss number of rows and columns and the number Remediation ES1 LEARNING SEQUENCE S1 LEARNING SEQUENCE WHOLE CLASS INSTRUCTION MODELLED ACTIVITIES Arrays in the real world- Use muffin trays, seedling trays, sheets of stickers and write a Multiplication Array Journal for each Commutative Law- model using egg carton to show that 6 x 2 = 2 x 6 = 12. Represent using seedling trays, muffin trays etc Investigation Students make a multiplication array at home using their favorite toy, snack, or any other object. Then, they bring their objects to class and set it up. Once arrays are ready to go, students go around the classroom, writing multiplication equations and solving their classmates' arrays (from Pinterest, Guess My Array!). Assessment: Children can effectively place a group of objects into an array and describe the collection of objects by stating the number of rows and columns and the number of objects in the rows and columns- see Multiplication Array Journal Investigation: What is the quickest method of counting a large group of objects? Extension Students photograph arrays in the school environment using iPad and present to class with appropriate number sentences. Extension Late stage 1 EVALUATION & REFLECTION Student Engagement Achievement of outcomes Resources Follow up