Grade 1 - Lesson 9-12 - Review of Lessons 9-12

Grade 1 Math Worksheets – Lessons 9–12: Subtraction Facts, Geometry, and Patterns

Help your first grader strengthen essential math skills with Grade 1 Lessons 9–12 from the First Grade Math Worksheets workbook. This lesson set gives students focused practice with subtraction facts, early geometry, and pattern recognition in a clear, visual, and step-by-step way.

Designed for children ages 6–7, these lessons help students build subtraction fluency, recognize and describe shapes, and understand patterns. Children practice subtraction facts up to 12, identify basic shapes, compare and sort shapes, recognize shape features, and complete simple visual and number patterns. These skills support stronger reasoning, problem solving, and future math success.

This set includes 4 focused lessons:

Lesson 9: Learning Subtraction Facts up to 12

Students practice basic subtraction facts within 12 using pictures, number sentences, counting-back strategies, and repeated practice.

Lesson 10: Introduction to Geometry Part I

Students begin learning about basic shapes by identifying, naming, comparing, and describing shapes using sides, corners, and visual features.

Lesson 11: Introduction to Geometry Part II

Students continue geometry practice by matching, sorting, comparing, and recognizing shapes in different positions and real-life examples.

Lesson 12: Understanding Patterns

Students learn to recognize, extend, and complete simple patterns using shapes, colors, numbers, and repeated sequences.

Together, Lessons 9–12 help students build fluency, visual reasoning, and logical thinking. These skills prepare children for number patterns, counting to 100, place value, measurement, data, fractions, and more advanced problem-solving lessons.

Perfect for:

Parents, teachers, homeschoolers, tutors, and first-grade students who need practice with subtraction facts, geometry, and patterns.