Problem Solving: Diffy



Curator: Jamie Bailey


Very similar to Sudoku problems where you have to figure out the various numbers that complete the pattern, this activity requires the students to solve the equations to complete each round. 

Grade Level: all grades
PSSM Content Standard: Numbers/operations and problem solving
CCSSM Content Standard: CCSS.Math.Content.2.OA.B.2 Fluently add and subtract within 20 using mental strategies.By end of Grade 2, know from memory all sums of two one-digit numbers.
Math Content: subtraction and problem solving




Evaluation


What is being learned? What mathematics is the focus of the activity/technology? Is relational or instrumental understanding emphasized?

This activity requires a firm relational understanding of subtraction.  Then the student applies this understanding to the various problems.


How does learning take place? What are the underlying assumptions (explicit or implicit) about the nature of learning?

The learning takes place with the assumption that students have a basic and working understanding of subtraction and its principles. 


What role does technology play? What advantages or disadvantages does the technology hold for this role? What unique contribution does the technology make in facilitating learning?

Technology plays an important role in that students can work on an interactive whiteboard. 


How does it fit within existing school curriculum? (e.g., is it intended to supplement or supplant existing curriculum? Is it intended to enhance the learning of something already central to the curriculum or some new set of understandings or competencies?)

This can supplement existing school curriculum.  By completing this, students are able to practice mastery of the concepts associated with the lessons.


How does the technology fit or interact with the social context of learning? (e.g., Are computers used by individuals or groups? Does the technology/activity support collaboration or individual work? What sorts of interaction does the technology facilitate or hinder?)

Technology would allow for students to work either collaboratively or individual through the use of interactive whiteboards, tablets or computers.


How are important differences among learners taken into account?

The learner differences are taken into account by allowing students to work at their own pace.  This leads students to true mastery.


What do teachers and learners need to know? What demands are placed on teachers and other "users"? What knowledge is needed? What knowledge supports does the innovation provide (e.g., skills in using particular kinds of technology)?

The teachers’ role is as a demonstrator then facilitator.  The knowledge is supported by the innovation of students becoming masters of the concepts.  Once mastery is established students (and teachers) have the ability to create their own problems thereby demonstrating another level of mastery.

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