Multiplication and Division: Groups and Sharing
Year 3/4 Mathematics Learning about equal groups and sharing Using arrays, bar models, and skip counting
WALT - We Are Learning To
Understand multiplication and division using equal groups Use skip counting to multiply and divide Recall facts for 2s, 3s, 5s, and 10s Represent problems using arrays and bar models Solve real-world word problems Use correct mathematical language
Warm-Up: Skip Counting Challenge
Count by 2s: 2, 4, 6, 8, 10... Count by 5s: 5, 10, 15, 20, 25... Count by 10s: 10, 20, 30, 40, 50... What patterns do you notice?
What is Multiplication?
Multiplication means 'groups of' 3 × 4 = 3 groups of 4 It's like repeated addition 3 × 4 = 4 + 4 + 4 = 12 We can show it with arrays and pictures
Multiplication and Division Connection
{"left":"Multiplication: Making equal groups\n4 × 3 = 12 (4 groups of 3)\nArrays help us see the pattern\nCommutative property: 4 × 3 = 3 × 4","right":"Division: Sharing equally or grouping\n12 ÷ 3 = 4 (12 shared into 3 groups)\n12 ÷ 4 = 3 (How many groups of 4?)\nDivision undoes multiplication"}
Hands-On Practice: Arrays and Bar Models
Use counters to make arrays Draw bar models for word problems Work with a partner Share 20 marbles among 4 friends equally How many groups of 5 can you make from 15?
Problem Solving Challenge
A bakery puts 6 muffins in each box They have 4 boxes How many muffins altogether? Show your thinking using pictures, numbers, or arrays
Success Criteria - Can You?
✓ Use equal groups to multiply and divide ✓ Create and read arrays ✓ Solve word problems with pictures and numbers ✓ Use mathematical vocabulary correctly ✓ Explain your thinking clearly ✓ Connect multiplication and division