Adding Numbers to Make 14
Year 2 Mathematics NSW Curriculum 15 minutes
WALT (We Are Learning To)
Find different ways to add numbers to make 14 Use counting strategies to solve addition problems Recognise number patterns when adding to 14 Apply our knowledge to solve real problems
Success Criteria
I can find at least 5 different ways to make 14 I can use my fingers, counters, or number line to help me I can explain my thinking to a partner I can check my answers by counting or adding
Let's Start with What We Know!
Count together from 1 to 14 Show 14 fingers using both hands Find 14 objects in our classroom Draw 14 dots on your mini whiteboard
Strategy 1: Doubles Facts
7 + 7 = 14 This is called a 'double' When we add the same number twice Can you think of other doubles we know?
More Ways to Make 14
{"left":"10 + 4 = 14\n9 + 5 = 14\n8 + 6 = 14","right":"12 + 2 = 14\n13 + 1 = 14\n11 + 3 = 14"}
Hands-On Exploration
Use 14 counters to make different groups Try: 10 red + 4 blue = 14 Try: 8 yellow + 6 green = 14 Record your discoveries on the worksheet
Think and Share
Which way to make 14 is easiest for you? Can you find a pattern in our number combinations? What strategy helps you remember these facts?
Differentiation & Extension
Support: Use number line 0-14, start with smaller numbers Core: Find all combinations using manipulatives Extension: Find 3-number combinations (e.g., 5+4+5=14) Challenge: Create word problems using 14
Let's Review Our Learning
We found many ways to make 14 Doubles: 7 + 7 = 14 Ten plus strategy: 10 + 4 = 14 Other combinations: 9+5, 8+6, 12+2, 13+1, 11+3 We can use counters, fingers, or number lines to help us