Go Math Grade 3 Chapter 1 Lesson Plans, Journal Prompts & Vocab Posters UPDATED Go Math Grade 3 Chapter 1 (Lessons 1.1 - 1.12 with Journal Prompts & Vocabulary). This file is editable in Microsoft Word and can be edited to match any changes that take place with the program. Lesson Topics Included in the Bundle: • Algebra - Number Patterns • Round to the Nearest Ten or Hundred • Estimate Sums • Mental Math Strategies for Addition • Algebra – Use Properties to Add • Use the Break-Apart Strate