Lesson 4: Be a Groupie

 Preparation

 Lesson Plan

Tuning In

• Play a grouping game. For this activity you will need space for students to move freely. Explain to the students that you will call out a number (less than 10) and they will need to place themselves in groups of that number. The game works best if it moves along quickly from one call to the next, and is exciting if it is done in silence with students gesturing to each other. Ensure students understand that there will be times when people do not fit into a group. On the whiteboard, record the number of whole groups that can be made each time they form their groups, e.g. ‘5 groups of 5’ or ‘4 groups of 6’ etc.
• Monitor and assist as necessary to ensure individuals are not repeatedly excluded.

Teacher Instruction

• Display slide 26 of the Early Multiplication PowerPoint emphasising that the groups have equal numbers of items in them. Explain that, when calculating the total number of objects that are found in equal groups, we can use multiplication. Display slide 27 and discuss how the multiplication number sentence is written.
• Display and discuss slides 28–29, identifying the number of groups, the number of items in each group and the corresponding multiplication number sentence.
• Display slides 30–31. Reinforce students’ understanding of the difference between groups and items within groups.
• Ask a student to draw a picture to indicate 4 groups of 2. Explain that, while 2 × 4 looks different to 4 × 2, the product remains the same. Review slide 25.

Guided/Independent Learning

• Explain to the students that, during this lesson, they will be completing a number of activities to consolidate their understanding of the use of groups to represent multiplication. Describe each of the activities listed below. Allow students to ask questions and/or seek clarification where necessary.
  • Use concrete materials to experiment with splitting a number into equal groups. Record the many different ways this feature number can be split into equal groups on the Group It Many Ways Template.
  • Working with a partner, arrange horses in equal numbers into paddocks in Farmer Sam’s Paddocks. Record the matching multiplication number sentence and calculate the product each time.
  • Working with a partner, use concrete materials to make groups as indicated on the cards in the Equal Groups Activity. Draw each group made and calculate the product each time.
  • Using the pictures cut from magazines in Lesson 1, create stories based on the objects. For example, if the picture is of a person’s eyes, the story might be: 6 people, how many eyes? Write the matching repeated addition number sentence (2 + 2 + 2 + 2 + 2 + 2), and the matching multiplication number sentence and product (6 × 2 = 12)
  • Play Grouping Spin with a partner. Take turns spinning the spinners to determine the number of groups and the number of items in each group. Make these groups with counters (or other concrete materials) and record the matching multiplication and repeated addition number sentences.
  • Complete the Colour by Number – Early Multiplication Worksheet matching repeated addition number sentences with multiplication number sentences.

Wrapping Up

• Gather the class together and display slide 32 of the Early Multiplication PowerPoint. Explain that, to further reinforce the concept of groups, students will be finding groups in a different way – by listening. Provide each student with the Sound Groups Worksheet before viewing the Sound Groups for Teaching Multiplication Video.

 Differentiation

Extending Students

Supporting Students

 Assessment Strategies

Suggested Assessment Strategies

• used strategic whole class or individual questioning
• observed student participation during learning activities
• recorded student progress on a checklist
• annotated student work samples
• collected and reviewed student work samples
• facilitated whole class or peer feedback sessions
• encouraged student self-reflection
• administered formal assessment tasks.

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