Stage 1 EASTS Maths - CSQ20 | Lesson 1 & 2 | Combining and separating quantities

Support your students in developing efficient strategies for addition and subtraction with this two-lesson PowerPoint resource aligned to CSQ20 of the EASTS Mathematics Scope and Sequence. These structured, explicit teaching slides are designed for Stage 1 learners and guide students to make connections between part-part-whole relationships, fact families, and number strategies.

Each lesson follows the “I Do, We Do, You Do” model, providing clear explanations, hands-on practice with number sentences, and opportunities for students to explain their mathematical thinking.

📘 What’s Included:

✅ Lesson 1: Building and Connecting Number Facts

• Focus on part-part-whole relationships

• Uses number bonds and fact families

• Visual models (e.g. tens frames, counters) to build understanding

• Guided practice to link addition and subtraction facts

✅ Lesson 2: Applying Efficient Strategies

• Encourages mental computation and reasoning

• Students explore multiple ways to solve a problem

• Includes number talks and peer discussion prompts

• Challenges students to explain and justify their thinking

🎯 Features:

✔️ Fully aligned with NSW EASTS Stage 1 – CSQ20 outcomes

✔️ Editable PowerPoint format for easy use and adaptation

✔️ Clear learning intentions and success criteria included

✔️ Supports fluency, reasoning, and communication in maths

🧠 Ideal for:

• Whole-class explicit teaching

• Guided group sessions or targeted instruction

• Numeracy warm-ups or deep dive maths lessons

• Teachers using the EASTS Mathematics Sequence