Bar Models for Addition
Year 1 Mathematics Learning to visualise addition
Daily Review: Domino Numbers
What numbers did we see on dominoes yesterday? How did we count the dots? Which domino had the most dots? Let's count together: 1, 2, 3, 4, 5!
Learning Intention & Success Criteria
Today we will learn to use bar models to show addition Success: I can draw a bar model for simple addition problems
New Vocabulary
Bar model - a picture that shows numbers Part-part-whole - two parts make a whole Total - the answer when we add Addition - putting numbers together
I DO: Bar Model for 5 + 3
I DO: Using Counters Too
We can show 5 + 3 in different ways Bar models use rectangles Counters use circles Both show the same addition!
WE DO: Mini-Whiteboard Practice
Draw a bar model for 4 + 2 Show your work to a partner Count the total together Check if your drawing is correct
YOU DO: Independent Practice
Draw bar models for these problems: 3 + 4 = ? 2 + 5 = ? Explain your thinking to the teacher
Exit Ticket: Show Your Learning
Solve 6 + 4 using a bar model Draw your bar model clearly Explain how you found the answer What is the total?
Assessment & Reflection
Observe student accuracy in drawing Check if representations make sense Listen to student reasoning Note who needs extra support