Rough Estimates of Unit Lengths

Based on my last post, I figured out that I could estimate the length of each unit based on some assumptions:

• Unit opens with one day for preview/preassessment
• The second lesson requires students to develop a prototype/solution and reflect on preassessment data
• Each performance assessment needs at least three lessons in order for students to demonstrate mastery
• One lesson to understand the practice by having students apply it to prior knowledge
• One lesson to understand the DCI (content)
• One lesson to combine them together
• A lesson where students revise their prototype/solution as a culminating event

Using this logic, just for the purposes of estimating unit lengths, I can quickly deduce the range of teaching time based on a 30-60 minute per day structure.  

Grade-Unit	PEs	Lessons	Days
K-Forces	2	9	9-18
K-Relationship	4	15	15-30
K-Weather	4	15	15-30
TOTAL	10	39	39-78
1-Light	4	15	15-30
1-Function	3	12	12-24
1-Space	2	9	9-18
TOTAL	9	36	36-72
2-Structure	4	15	15-30
2-Interdependent	3	12	12-24
2-Earth	4	15	15-30
TOTAL	11	42	42-84
3-Forces	4	15	15-30
3-Ecosystems	4	15	15-30
3-Traits	4	15	15-30
3-Weather	3	12	12-24
TOTAL	15	57	57-114
4-Energy	5	18	18-36
4-Waves	2	9	9-18
4-Structure	3	12	12-24
4-Earth	4	15	15-30
TOTAL	14	54	54-108
5-Matter	4	15	15-30
5-Ecosystems	3	12	12-24
5-Earth	3	12	12-24
5-Space	3	12	12-24
TOTAL	13	51	51-102