1. MAKING A DICHOTOMOUS CLASSIFICATION KEY http://www.qacps.k12.md.us/ces/Staff2.htm

3. POSSIBLE “DERIVED CHARACTERS” All made of one material Is it hinged Has a sharp edge Has holes Hammer-like head

4. NO Hammer-like head

5. Hammer-like head NO Hammer-like head

6. Hammer-like head NO Hammer-like head ALL Made of Wood NOT ALL Made of Wood

7. Hammer-like head NO Hammer-like head Sides of head are different Sides of head NOT different

8. Hammer-like head NO Hammer-like head Sides of head are different Sides of head are NOT different All wooden NOT all wooden

9. Hammer-like head NO Hammer-like head Sides of head are different Sides of head are NOT different All wooden NOT all wooden ? ?