: Each unit and chapter is anchored by a real-world "phenomenon" (e.g., how explorers survive in Antarctica) to drive student interest. CISD Model : Uses a unique instructional model— nvestigate, ynthesize, and

Scientific methodology, CER (Claim, Evidence, Reasoning), and characteristics of life.

Each section includes "Check for Understanding" questions that mirror standardized testing formats. How to Access the Digital Version Safely

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