TEACHER GUIDE & ANSWER KEY
Grade 2 • Lesson 68
Instructional Master

Lesson 68 Teacher Key: Feline Anatomy & Domestic Utility

Answer Key & Rubric
Pedagogical Framework • Comparative Zoology
Biological Understanding: Examining feline adaptations: distinguishing domestic (tame) animals from wild, explaining velvet foot-pads (stealth locomotion), retractable claws (retractility), self-grooming with barbed tongue, and barn/pantry pest control.
1 Section 1: Classification & Grooming Solutions
1. Tame vs. Wild: The cat is a tame (domestic) animal that lives in houses and barns.
2. Sleep & Covering: It likes to sleep on warm braided rugs, soft chairs, or by the hearth; its body is covered with soft, warm fur.
3. Grooming: The cat washes its fur by licking its paws and fur with its rough, barbed tongue.
2 Section 2: Paws, Claws & Utility Solutions
1. Silent Step: It walks softly and silently on soft, padded (velvet) paws.
2. Retractable Claws: Sharp, curved claws that can be pulled in (retracted) or pushed out when climbing or catching prey.
3. Three Actions: Climb trees, leap across fences, purr when petted, see well in the dark.
4. Practical Utility: It catches harmful mice and rats that destroy grain and food in kitchens and barns.
3 Section 3: Model Expository Paragraph
Exemplary Model Paragraph:
β€œThe cat is a gentle, tame animal that lives in human homes and is covered in soft fur. She steps silently on velvet-padded paws and has sharp curved claws that pull inside when she walks. A cat can climb tall trees and leap with great agility. She is very useful because she protects our pantry and barn by catching pesky mice.”
4 Diagnostic Scoring Rubric (4 Performance Levels)
Evaluation Domain 4 • Exemplary 3 • Proficient 2 • Developing / Emerging
Anatomical Observations Understands padded paws, retractable claws, and self-grooming mechanisms thoroughly. Identifies basic physical traits (fur, sharp claws, padded feet) correctly. Confuses feline traits with other domestic animals.
Classification & Utility Distinguishes tame from wild; articulates rodent control as practical domestic service. Identifies cat as tame and mentions catching mice. Unable to explain practical usefulness.
Expository Paragraph Flow Synthesizes facts into a tightly structured, cohesive paragraph with smooth transitions. Writes an organized paragraph with clear, complete sentences. Writes disjointed bullet-like statements without paragraph unity.
Handwriting & Mechanics Impeccable letterforms strictly on ruled baselines; correct capitalization and ending punctuation. Legible handwriting with minor mechanical slips. Handwriting uneven, cramped, or baseline omitted.
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