For Plant 1: (disclaimer, it won’t let me indent on here so indentations are made with …. . It also will not accept my prime numbers when I finally post it so I’m putting *1, *2, etc.).
A. Appears to be a tree plant
……B. Needles growing in whirl clusters on small woody stems
……B*(1). Red pines (reddish brown)
……B*(2). Needles longer in length, roughly an inch or more.
……B*(3). Needles green in colour.
Dichotomous Key
A: Plants with petals
Plants without petals
Dichotomous Key
A. Plants with woody stem – Plant 1
A1. Herbaceous Plants
B. Plants with multiple flowers – Plants 2 and 4 to C
B1. Plants with single flower – Plant 3
C. Plant with yellow flower – Plant 4
C1. Plant with white flower – Plant 2
Attached is my attempt at a dichotomous key for the plants provided in week 2. Based on what I can see, plant 2 seems to be a complete flower. But, if that is not true, I’ve also created a second option for my key that circumvents that issue!
I find dichotomous keys to be incredibly difficult. Hoping to get better at it.
Dichotomous Key
Has Flowers
Does not have flowers
I created my key in a manner that I feel my students (5/6 grade) could do. While I’m not 100% confident that it is correct for this assignment, I feel it describes the aesthetic features of the plants with characteristics middle schoolers would notice. Of course, there are more observations that would allow us to go even further in depth and that is something that I would use as an extension for some students.
