Make learning addition, subtraction, and problem-solving strategies engaging and effective with this First Grade Math Unit on Operations & Algebraic Thinking! This standards-aligned resource provides lesson slides, guided notes, and independent practice worksheets to help students build fluency with basic operations and develop essential math reasoning skills.

What’s Included?

✅ Lesson Slides – Interactive and easy-to-follow slides covering addition, subtraction, word problems, and fact families.
✅ Guided Notes – Student-friendly note pages with visual models and step-by-step practice.
✅ Worksheets for Independent Practice – Hands-on activities for reinforcing key concepts through number sentences, missing addends, and real-world problem-solving.
✅ Math Strategies & Tools – Number bonds, ten frames, part-part-whole models, and number lines to support student understanding.

Skills Covered:

Understanding addition and subtraction within 20
Solving word problems using objects, drawings, and equations
Finding missing numbers in addition and subtraction equations
Understanding the relationship between addition and subtraction
Using strategies like counting on, making ten, and doubles facts

Perfect for whole-group instruction, small-group interventions, or math centers, this unit provides everything you need to help first graders master operations and algebraic thinking!