I recently found this article written by **Richard Skemp** that Gary Davis (@republicofmath) **highlighted on his blog **. I recommend reading the whole article. Skemp describes the difference between instrumental and relational understanding, and how the word understanding is used by different people to mean different types of understanding. He also makes the observation that what we call mathematics is in fact taught in two very distinct ways. Skemp uses an analogy to try and explain the difference between relational and instrumental knowledge which I would like to explore.

Imagine you are navigating a park, and you learn from someone else some specific paths to follow in the park. You move back and forth along the paths, and learn how to get from point A to B in the park, and you may even be able to move quickly from point A to B. Eventually, you add more points to your list of locations to which you know how to navigate. Step off any of your known paths though, and you are quickly completely lost, and you might even develop a fear of accidentally losing your way. You never really develop an overall understanding of what the park looks like, and you may even not know about other connections between the points you know. This is instrumental understanding.

Imagine that instead of navigating the park by specific paths shown to you, you get to wander all over the park. For some parts of the park you may be guided, through other parts of the park, you wander aimlessly. In time, you develop an overall picture of the park. You might discover the shortest paths between two points, and you might not, but you would understand the overall structure of the park, and how each point in the park is related to each other point. If someone showed you a short-cut in the park, you'd probably understood why it worked, and why it was faster than your meandering path. You wouldn't worry about stepping off the path though, since even if you get lost, you'd be able to use your overall understanding to come to a place you know. This is relational understanding.

Here's Richard Skemp's description of the analogy.

*"The kind of learning which leads to instrumental mathematics consists of the learning of an increasing number of fixed plans, by which pupils can find their way from particular starting points (the data) to required finishing points (the answers to the questions). The plan tells them what to do at each choice point, as in the concrete example. And as in the concrete example, what has to be done next is determined purely by the local situation. (When you see the post office, turn left. When you have cleared brackets, collect like terms.) There is no awareness of the overall relationship between successive stages, and the final goal. And in both cases, the learner is dependent on outside guidance for learning each new ‘way to get there’.*

*In contrast, learning relational mathematics consists of building up a conceptual structure (schema) from which its possessor can (in principle) produce an unlimited number of plans for getting from any starting point within his schema to any finishing point. (I say ‘in principle’ because of course some of these paths will be much harder to construct than others.) This kind of learning is different in several ways from instrumental learning." ~ *Richard Skemp, Mathematics Teaching, 77, 20–26, (1976)

Instrumental understanding is really useful when you have to know how to do a specific task quickly, and aren't too concerned about how this task fits into other similar tasks. Relational understanding is useful when you want to explore ideas further, are unconcerned about your destination, and are more concerned with the process.

Unfortunately, our system tends to favour instrumental understanding too much. While it is useful to be able to get from point A to point B quickly, if one is not aware of one's surroundings, and doesn't get to enjoy the scenery, it hardly makes the trip worthwhile.

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David is a Formative Assessment Specialist for Mathematics at **New Visions for Public Schools** in NYC. He has been teaching since 2002, and has worked in Brooklyn, London, Bangkok, and Vancouver before moving back to the United States. He has his **Masters degree in Educational Technology from UBC**, and is the **co-author of a mathematics textbook**. He has been published in **ISTE's Leading and Learning**, **Educational Technology Solutions**, **The Software Developers Journal**, **The Bangkok Post** and **Edutopia**. He blogs with the **Cooperative Catalyst**, and is the **Assessment group facilitator for Edutopia**. He has also helped organize the first **Edcamp in Canada**, and **TEDxKIDS@BC**.

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## Comments

## Structural Learning

Agree with you 100%, David!

I did my Master's thesis on structural learning, basing a lot on Skemp's dual learning types.

Problem is, we teach many subjects, math in particular, using the instrumental approach.

A great little example:

Why do we "flip and multiply" when we divide fractions? Answer: Just do it...it works!!

Students who just learn instrumentally, eventually come unstuck; those who learn relationally take longer, but go further!

See a brilliant study called "Benny" by Stanley Erlwanger (my advisor at Concordia) back in the 90s. Benny was a 100% relational learner, who tried playing the game to explain everything...with surprising results!

I left Math teaching 12 years ago to work in government, but still love to do work on the side...

David

## The frustrating thing is that

The frustrating thing is that there are so many relatively simple to understand systems which help prevent teaching to instrumental understanding. The struggle has been getting teachers to USE them, or even recognize that this is an issue.

Thank you for the reminder of the Benny research. I read about it on Raymond Johnson's blog a while back, and it is useful as a refresher.

## DAvid this is a fantastic

DAvid this is a fantastic explanation have been struggling for days to get my head around Skemp Wow finally makes sense now

thank you

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