🧮 Estimating and Counting in Groups – Stage 1 Maths PowerPoint Lessons & Worksheets

Looking to make estimation engaging and purposeful for your Year 2 students? This comprehensive Stage 1 Mathematics resource includes two fully editable PowerPoint lessons aligned with the NSW Mathematics Syllabus (EASTS RWN19 & RWN20) – designed specifically to support your teaching of estimating and counting in groups of 10 and 100.

Perfect for 7–8 year olds, these lessons follow the I Do, We Do, You Do model and include:

• ✅ Clear learning intentions and success criteria
• ✅ Real-world estimation examples
• ✅ Interactive games and visual prompts
• ✅ Hands-on class activities using counters
• ✅ Differentiated worksheets for independent practice

What’s included:

• 📊 Lesson 1 PowerPoint: Estimating in groups of 10 (with a focus on bundles up to 100)
• 📊 Lesson 2 PowerPoint: Estimating larger collections to the nearest 100
• ✏️ 2 Printable and Editable Worksheets (Level 1 and Level 2 difficulty)
• 🎯 Success Criteria Poster (for classroom display)

This resource is ideal for whole-class explicit teaching, maths rotations, or small group intervention. Save time planning and help your students build efficient mental strategies for estimation!

This resource is best opened using PowerPoint rather than Google Slides.

**This resource is an original creation by a classroom teacher and is not affiliated with or endorsed by EASTS Mathematics. It has been developed based on personal interpretation of the EASTS Maths framework.**