Source: Wiggins, G., & McTighe, J. Understanding by Design. Merrill
Prentice Hall: 1998.
For further information about Backward Design refer to
http://www.ubdexchange.org/
Title: Wormy Fractions Subject/Course: IntermathAlgebra
Topic: Introduction to simple fractions Grade(s):
MID 6th8th grade or 2nd grade Designer(s): Meg Ramsey
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Stage
1 – Desired Results 

Established
Goal(s) Standard: Relates a fraction to a part of a
whole, a part of a set, and a 

Understanding(s) Students will understand that... 1. a fraction is made up of numerator and denominator 2. a fraction is written as the part /whole 3. the larger the denominator, the smaller the pieces will be U 
Essential Question(s) 1. What is a fraction? 2. How do you make a fraction? 3. Which number goes on top, the part or the whole? 4. What is a numerator? 5. What is a denominator? 6. What happens when the numerator and the denominator are the same number? Q 


Students will know... numerator denominator fraction part whole 1/2, 1/3, 2/3, 1/4, 2/4, 3/4, K 
Students will be able to... write a fraction based on a concrete model or a pictorial model. tell how many pieces a gummy worm would have to be cut into in order to share between 2, 3 or 4 people tell what the relationship is between the top and the bottom numbers of a fraction in fractions with 1 as a denominator, identify which fraction is smallest or largest, by comparing the denominators S 


Stage
2 – Assessment Evidence 


Performance
Task(s) Summary in G.R.A.S.P.S. form 1. Students will be able to identify which fraction is represented, based on a concrete (gummy worm) or pictorial (worksheet) model. 2. I’ll present how to divide a gummy worm into one, two, three, or four equal parts, and relate how these worms now represent fractions (1/2, 2/2, 1/3, 2/3, 3/3, ¼, 2/4, ¾, 4/4, 1/1). 3. My audience is the group of MID/MOID Special Ed students who I work with currently. My performance will be selfmonitored by how well the students can grasp the concept of fractions. 4. Our students have been studying habitats and worms in Science. Each student is already familiar with worms. Each student has their own individual worm habitat which he or she is responsible to care for, on a weekly basis. I thought it would be an attentiongrabbing, fun way to introduce fractions to our students. 5. Students will be assessed using classroom participation, as well as fraction worksheet. (gummy worm worksheet)
T 

Key Criteria: Classroom participation, fraction worksheet. 

Other
Evidence Teacher observation, followup fraction homework. 

Stage
3 – Learning Plan 

Learning
Activities Consider the W.H.E.R.E.T.O. elements. 

